Ci Data ProcessingCi Telecommunications/PBXCI Process ControlQ Office Automation0 HospitaVHealth CareSuitable for computer type (non-linear) loads without derating.
lllllllllllllllllllliIIIIgiilff]llllil
~|%I&~~' '' V, C ~
'~'eries1000 Uninterruptible Power SystemsBenefits Include:Q High Reliability
(Min. 2 Years Demonstrated MTBF)0 Ease Of Installation:
Input Power Cord & Plugs AvailableOutput Power ReceptaclesCasters for Mobility
Q Suitable for Office or Computer RoomSmall SizeQuiet Operation (50 db)Sealed Maintenance-Free BatteriesUL 1012 Listed
0 Variety of Voltages Available0 Automatic Operationi]Communications Interface
Available RS232 or Contact Closures
Ratings4
VOLTAGES AVAILABLE(INPUT/OUTPUT VOLTAGES MUST BE THE SAME)
MODELPOWERKW/kVA
TYPICALEFFICIENCY
. (FULL LOAO) INPUT
60 HZ FIJ
OUTPUT INPUT
50 HZ
OUTPUT
'i103-
1105 5.0 9096120/240
240120/240'40 240 240
'Requires 3 wire input plus ground (common neutral).
lead acidLifeExpectancy 5 yrs. or 200 fulldischarge
cycles at full loadDC Bus: 120 Volts DC (Nominal)
135 Volts DC (Roat)
Mechanical SpecificationsVentilation: Convection cooled with
thermostatically controlledauxiliary fan
Input Cable~ ~ Efltry: Bottom or rear
Available Options
Q input Power Cord 8 Plug—five foot long poorer cord with NEMAplug (not available on Model 1105 - 120 volt-60 Hz units).
Q Output Power Distribution Breakers —up to 6 breaker pole positions are available instead of standard outputreceptacle panel. Available breakers are:
Single Pole Two Pole15 amp 15 amp20 amp 20 amp30 amp 30 amp50 amp
0 Static Bypass Switch—provides uninterrupted transfer upon inverter failure within 4 msec.
Cj Emergency Power Off (EPO) —completely isolates the UPS unit from line and load. Power to the load is-
interrupted until EPO is manually reset. EPO can be provided either locally, or remotely and locally.
C! Rack Mounting—provides hardware necessary to install UPS and/or battery cabinet(s) in a standard 19" rack, Iftwo or more cabinets are provided (electronics plus battery). they can be mounted vertically in one rack orhorizontally in adjacent racks.
Q CSA Kit—provides additional hardware necessary for compliance to CSA requirements. Available on units tobe installed in Canada. CSA kit invalidates the UL listing. II
Cabinet DimensionsCONNECTORS PROVIDED
~ ~ ~ ~ ~ ~ ~
OPTIONAL'DDITIONAL
BATTERYCABINET
(OPTIONALON1.5. 3, AND 5KVA
MODELS)
BATTERYCABINET
(OPTIONAL ON1.5 AND 3KVA MODELS.
STANDARD FOR ALL5KVAMODELS)
UPSCABINET
(TYPICALLY.CONTAINSBATTERY TRAYWITH
1.5 AND3KVAMODELS)
25.60(650.24)
~ ~ ~
I
TOP VIEW
SHIPPEDSPUT
//
rrr11 IN.
9)'OORSwiNO (1YRIOPTIONAL EMERGENCY
POWER OFF PUSHBUTTON
'7.00 (431.8)
IIoI
I
I
IoL
p c)
OI
I
I
I
0)J
17.00(431.8)
rIoI
I
I
IoL
olJ
17.00(431.8)
DISPLAY PANEL(SWING DOWN COVER)
ON/OFFKEY
SWITCH
KEY LOCKABLEDOORS(ONE KEY RTS ALLDOORS)
OPTIONALADDITIONAL
BATTERYCABINET
34.00(863.6)
I0
10
'r0 0
12.62(320.55l FRONT VIEW LEVELUNG FEET
(4 EA CABINETl
3 44(57.31
ALLCASTERS SWIVEL
NOTE: UPS with 2 battery cabinets shown above (up to 2 hrs Ca 5KW)
Dimensions (Shown In Inches/mm)
EquipmentWeights
BatteryWeight(Minimum)
Heat RejectionWorst Case-Full KW
PointLoading
Shipping WidthContainer Depth(Pallets) Height
1.5 KVA
26 Lbs(117. 3KG)
(49.$BSKG)
922 BTU/HR
92.Q Lbs(41.cj5KG)
3 KI/A
340 Lbs(154.22KG)
110l,'BS(49.89KG)
2
1636 BJTU/HR
110:Lbs(49.88KG)
5 KVA
460 Lbs(208.84KG)
360 LBS(199.50KG)
2560 BTU/HR
115 Lbs(52.15KG)
(2) 20"28" each4/II
B.OO(152.41
t.ss(34.031
CLEARANCE FROMWALLFOR
VENTILATION
SERIES IOCO COMMUNICATIONSOPTIONIDB - 25 AND DB -9 CONNECTORS PROVIDEDWITH OPTION)
Q Remote Monitor Panel —provides a wall mounted panel that can be located up to 100 feet from the unit anddisplays selectable alarms from the UPS unit. Equipped with horn; requires Communications Interface.
Q Communications Interface —provides the following:Four sets of form B relay contacts are wired to a 9-pin connector (DB type). One set of contacts indicatesSYSTEM NORMALor SYSTEM PROBLEM. Remaining three sets of relay contacts are programmable via internalswitches to provide indications of any one of the remaining available alarms. RS232C port driven at 300 baud. 8bits, no parity and accessible from the rear of the unit. Each alarm is transmitted via the port as it is processed. Inaddition to the fixed alarm messages the UPS can be polled from a remote terminal for metering values by aseries of 2 key commands.
Q Language other than English —provides for: manuals, decals, warning signs, nameplate, RS232C optioninterface messages and control panel in one of the following languages: Spanish, French or German.Control panel alarms for these versions are identified by symbols rather than words.
Q Longer Battery Protection Time—provide battery times up to four hours (or more on some models). Dependingupon the model, additional battery cabinets may be required.
Q External Battery—if the customer provides his own battery, the unit is available without internal batteries.External DC connections are hard wired to an internal terminal board.
Q Spare Parts —provides a kit of field replaceable subassemblies.
Q Replacement Batteries —provides either battery drawer assemblies or complete battery cabinets that can beadded to existing units to extend battery protection time.
Q FCC Kit—provides compliance with U.S. Federal Communications Commission Class A15J Regulations.
Series 1000- Battery Pack Options
!0-'OTAL4 BATTERYOF PACK
BATlERY BATTERY WEIGHTPACK 4 CABINETS (LBS)
110 15
P,ROTE ION TIQE IN MINUTESNQT NOT
AVHLABLE AVH~~NQT
AVAILABLENOT
AVHIABLE
LOAD ON UPS INKW'.P
1.P 2.0 2. 3.0 3.5 4.0 4.5 5.0
202 360 50 30 25 20 17 13 10
302
402'04
304
404'06
208
306
308
212
312
485
485
605
845
845
970
1205
1330
1685
1810
2530
150'80
210
330
360
330
420
480
SGO
660
900
90
110
130
210
230
210
300
330
420
420
660
150 115 85
210 160 130
240 180 150
330 250 210
330 2 0 2 0
480 360 3 0
60 50 35
75 55 40
90 65 50
150 120 90
160 125 95
30NOT
AVAILABLE
40
75NOT
AVAILABLE
75
105
130
180
1 0
2 0
" 110 90
150 130
1 0 1
20 20
25 20NQT NQT"
AVAILABLE AVAILABLE
35 30
55NOT NOT
AVAILABLE AVAILABLE
60- 50'0
75
15NOT
AVAILABLE
25
NOTAVAILABLE
45
65
120
180
'Available as initiallyconfigured UPS units, cannot be furnished as expansion packs.
Over temperatureShutdown ImminentInverter Not ReadyInverter FailureBattery FaultOn Bypass
Metering & Alarm Panel:
CONNECTION
2 Wire + GND
2 Wire + GND
2 Wire +, GND
AC Input To UPSSingie Phase
NOMINALVOLTAGE
120
208
220, 230240, 50
HZ
NOMINALCURRENT MAXIMUMCURRENT1.5 KVA 3.0 KVA
15A 28A
8.6A 16A
7.8A 15A 24A 12A 24A 40A
5.0 KVA 1.5 KVA 3.0 KVA 5.0 KVA
46A 23A 46A 77A
26A 13A 26A 43A
AC Output
DC Link, UPS ToBattery(1) Positive(1) Negative
2 Wire GND
3Wire iGNDI
2 Wire + GND
2 Wire + GND
2 Wire 3 GND
2 Wire GND
3 Wire GND
120 I/DC
240
120/240A
120
208
220,:.2302401 50
HZ
240
120/240
7.5A 14A
15/7.5A
28/14A
6.5A 13.0A
6.3A 12.5A
12.5/6.3A
25.0/12.5A
1]MP IIIMP
12.5A 25.0A
7.2A 14.4A
23A 11A 23A 38A
46/23A
'2/11A
46/ 76/23A . 38A
21.7A 8."2A 16.3A 27.2A
20.8A 7.8A 15.6A 26.0A41.7/20.8A
15.6/7.8A
31.2/15.6A
52.1/26.0A
1 AMP 2 2A 46&A 77.4A
41.7A 15.6A '1.2A 52.1A
24.0A 9.0A 18A 30.0A
Line Cord And Plug: (60Hz Units Only)
120 VAC
208 OR 240 VAC
120/240 VAC
1.5 KVA
NEMA 5-30P
NEMA 6-
A 14-20P
3.0 KV
't4E58A 5-50P
EMA 6-30P
NEMA
5.0 KVA
N/A
NEMA 6-50P
NEMA 14-50P
Standard Receptacles: (60Hz Units Only)+ISR2 5 15R2 5 15R2 5 15R
+11 'ii>.(PSTYLE 6
OUTPUTVOLTAGE120V
LB 15R2 LB 15R2 L5.20R LB 20R
QQC~3 DI
STYLE 9
OUTPUTVOLTAGE208 OR240V
5 15R2 5 15R2 LI4-20R LI4-20R
~~oo(5 C31
STYLE 11
OUTPUTVOLTAGE120/240V
15A 'I SA ISA 15ABRKR BRKR BRKR BRKRIP IP IP IP
ISABRKR2P
20A 20ABRKR BRKR2P 2P
15A 15A 20A 20AeRKR BRKR BRKR eRKRIP IP 2P 2P
VfARNING: This equipment generates, uses, and can radiate radio frequency energy andif not installed and used in accordance with the instructions manual, may causeinterference to radio communications. It has been tested and found to comply with thelimits tor a Class A computing device pursuant to Subpart J of Part l5 of the FCC rules,which are designed to provide reasonable protection against such interference whenoperated in a commercial environment. Operation of this equipment in a residential areais likely to cause interference in which case the user at his own expense willbe requiredto take whatever measures may be required to correct the interference.
SERIES I 000
EQUIPMENT SPECIFICATIONS
POWER RATINGS ;ehd 5 KVA
INPUT
Power Factor
Voltage
Voltage Range
Current THD
inrush Current
Surge Withstand
Minimum .9 at Full Load
I 20, 208, 240, 240/I 20 Yac at 60 Hz220, 230, 240 Vac at 50 Hz
+l3%, -20%
5% Typical, l0% Max.
Less thon I 00% of Nominal InputCurrent
Per IZZZ.Standard 0'587
'
OUTPUT
Voltage
. Power Factor
Voltage Regulation
Voltage Adjustment
Transient Response
Transient Recovery
Line Sync Range
Frequency Regulation
Slew Rate
I 20, 208, 240, 240/I 20 Vac at 60 Hz220, 230, 240 Yac at 50 Hz
NOTF .must match input voltage
.8 Lagging, .9 Leading
'% (manually set)
'% for I00% Load Step or FmllLoad Drop on Battery
l00 msec to 2%
—+ I Hz or —+ 3 Hz, selectabie
Free Running within .I Hz
I Hz/sec or 2 Hz/sec selectable
Voltage THD
Load Crest Ratio
Overload
Fault Clearing
Static Transfer Time
Electromechanical Transfer Time
4% (3% single) for linear load
3:I
l25% for IO minutes
200% for. IO cycles
Less than 4 msec
50 rnsecr
BATTERY
Type
Reserve Times
Recharge Time
Maintenance Free, Sealed LeadAcid Type
5 minutes to 4 hours
IO times outage period to 90%capacity
OTHER
Efficiency (at nominal input) 90% (85% for I.S KVA)at Full Load
85% at 75% Full Load (I.O PF Load)
Operating Temperature
Storage Temperature
Relative Humidity
Elevation
Shock and Vibration
Acoustic Noise
- I 0 to +40 Celsius
-20 to +70 Celsius
I 0 % to 95 % (non-condensing)
5000 feet without derating
Capable of withstanding Zone 4requirements
50 dBA at I meter max..
~ ~
l I
TAEkE OF CONTENTS
EQUIPMENT SPECIFICATIONS
I.O INTRODUCTION .....................I.Il.2l..3
I ~ ~ ~
I eneral Description ...................Scope and Conventions of this Publication ...C'eneral Safety Considerations............
3.0 Simplified Power Schematic of Series 1000.............. 20
3. I Series l000 Display Panel .......................... 2I
3.2 Series l000 Display Panel (REAR VIEW)................ 22
LIST OF CUSTOMER DRAWIN4S
Series l000 UPS Outline Drawing
Series l000 UPS One Line Diagram
Series l 000 UPS Interconnection Diagram
INTRODUCTION
General Desct i tion
Your Exide Electronics Series l000 UPS provides "peace of mind". Neveragain need you worry about those unpredictable power problems which catchyou and your equipment off guard. Instead, you can depend on your SeriesI000 to stop power problems before they affect your critical operations.When surprise utility outages occur, your Series l000 will sustain power toyoui equipment, while you prepare for a controlled, orderly shutdown that iseasy for you and your equipment. Exide Electronics Corporation markets afull line of power protection equipment, and has relied upon many years ofexperience in designing uninterruptible power supply systems to bring you theSeries 1000 UPS, a revolutionary concept in-system compactness, simplicity,and Functionality.
Rapid advances in digital technology are revolutionizing capabilities of miniand micro computers allowing for unprecedented growth and changes in officeautomation, communications, and process control environments. Thesetechnological advances have a profound impact on day-to-day business.activities as they dramatically increase dependence, of organizations andindividuals on the continuous availability and access to computerized data. Itis therefore imperative to maintain a highest possible up time for thesemachines. The Series l000 strives to meet this difficult task by assuring thata continuous supply of conditioned power is available for your criticalequipment.
In bringing you the Series l000 UPS, Exide Electronics has developed aninnovative power system design, called "Line Interactive", which overcomesmany of the limitations of existing UPS systems. "Line Interactive" powerarchitecture allows for the complete elimination of an entire powerconversion stage - the rectifier stage. This has lead to a more efficient
~ system design, both in terms of space utilization and electrical performance.Your Series 1000 UPS takes full advantage of this concept to deliver the
~ latest in "state of the art" performance to meet your power protection needs.
"Line Interactive" power architecture offers the following advantages overconventional UPS designs:
Excellent performance with non-linear loads (such as switching powersupplies normally used in computer systems).
0
0
0
Low input and output harmonic distortion.
High throughput efficiency.
Input current inrush control.
Wide input vol tage operating range.
Series M00 CPS features include the following:
O
0
O
Compact size and reduced weight.
Digital display of vital system parameters including: voltage andcurrent measurements at input, output, and battery connections,including frequency measurements.
Alarm detection circuitry capable of sensing eight (8) independentalarm conditions, including an audible alarm which sounds to notify theuser of a potential power problem.
Choice of a wide range of 'standard receptacle panels.
0
0
Battery protection time from 5 minutes to 4 hours.
Inherent flexibilityand mobility resulting in decreased installation costand ease of relocation.
0 Built-in reliability, high efficiency, and low input and output harmonicdistortion.
User-friendly design utilizing simplicity of operation, maintenance, and'epair.
0 Aesthetic attractiveness 7o assure acceptance in office and computerenvironments.
L
Series l000 UPS options include:
0 Communications interface allowing remote sensing of critical alarmconditions within the UPS. This includes access from a CRT terminalutilizing RS-232C conventions or electrical sensing utilizing four (4)form "B" relay contacts.
Local and Remote "Emergency Power OFF" features which permitimmediate shutdown of the UPS and removal of power from yourcritical equipment in case of emergency.
0 Remote Monitor Panel for remote signalling of system states.
Sco and Conventions of this Publication
This publication provides a guide for installation, operation, and preventivemaintenance of your Series l000 UPS system. The UPS is largely automatedand has been designed to be simple to operate. However, a thorough readingof this publication is required to understand important operator proceduresand system functions.
Equipment Specifications appear at the front of this publication, andCustomer Drawings are included at the back.
General Safet Consideraticms
The area surrounding the UPS must be kept clean, free of excess moisture,and conform to the environmental specifications appearing in the EquipmentSpecifications section at the front of this publication. This system is notintended for outdoor use.
During normal operation, the front doors of the equipment should remainclosed to protect the operator from dangerous voltage levels present within,and also, to allow proper air flow within the unit. Operation of the UPS withthe cabinet doors open or protective panels removed should be performed byqualified service personnel only. Should questions or doubts arise, do notmake any assumptions about the electrical state of the equip'ment. Checkwith a voltmeter before you attempt to connect or disconnect anything.
This equipment is supplied with maintenance-free lead acid batteries. Do notattemPt to service these batteries yourself. Since the battery bank is on
energy source in itself, dangerous voltages are always present at exposedbattery connections. The electrolyte in the batteries contains sulfuric acidthat can cause severe burns. In the unlikely event of contact with your skin,wash the area with soap and water immediately, and contact a physician ifany burns result. If the acid is splashed in your eyes, wash immediately withrunning water for at least twenty (20) minutes and see a physician.
Always disconnect all sources of power before installing or servicing thisequipment, and do not operate near gas or electric heaters. Always adhere tothe more detailed safety requirements described later in this manual, andobserve all caution and warning notices appearing on the inside and outside ofthe equipment.
Exide Electronics Corporation accepts no liability, in negligence or otherwise,for cny damage or injury resulting from the user's and/or installer's relianceupon the information contained in this publication. -The user/installer is
responsible for making certain that the installation is properly inspected forsafety and compliance with all local ordinances, and is suitable for itsintended use.
BATTERYCIRCUITBREAKER
ukE CIRCUITBRQLKER
LOAD CIRCUITBRQAKERIS)
COIOCIHICATIONSOPTION
OUTPUT RECEPTACLEPANEL (SEVERAL TYPES)
BATTERY CABLE AHDCONNECTOR TO ADDITIONALBATTERY CABINET
(OPTIONAL)
LOWERPROTECTIVECOVER
IHVERTERSECTION
g g aaaa
CARD CACE
I CTOR
CAPACITYIIAHK
PPER PROTECTIVEVER
(ii)(ii)I cs 4
rLINE COROIOP T ICHAL)
MAINTRANSFORMER
BATTERYTRAY ~P)ogglOiooÃioNi/gggO
PR IMEPUBNBUTTON
POWER SUPPLYIII0ICATOR
LEVELIHOFEET
FRONT VIEWDOOR REMOVED
REAR VIEWCOVER REMOVED
FIGURE I.O LOCATIONS OF MAJOR SUBASSEMBLIESSERIES IOOO UPS (ALL I.SKVA MODELS)
BATTERYCIRCUITbllEANER
LIHE CIRCUITBREAKER
LOAD CIRCUITBREAKER(S)
CONS/Hl CATIOHSOPTIOH
OUTPUT RECEPTACLEPAHEL (SEVERAL TYPES)
BATTERY CABLE AHDCONNECTOR TO ADDITIOHALBATTERY CABINET
(OP T IOHAL)
LOWERPROTECTIVECOVER
IHVERTERSECTIOH
g g aaaaUPP,EII PIIDTECTIVECOVER
IHDUCTOR
CARD CAOEr
CAPACITORBANN
8 Cb 6$I 6scb
LINE CORO(OPTIONALI
QAIHTRANSFORIKR
BATTERYTRAY 0$ $ )OoiOQioiOi0$000000$ iss
~IOOWsOWWOOWOiOsiOOOOSp '
PRIMEPUSHBUTTON
POWER SUPPLYINDICATOR
LEVELlHQFEET
FRONT VIEWDOOR REMOVED
REAR VIEIVCOVER REMOVED
FIGURE I.I LOCATIONS OF MAJOR SUBASSEMBLIESSERIES l000 UPS (ALL 3KVA MODELS)
BATTERYCIRCUITBREAKER
LINE CIRCUITBREAKER
LOAD CIRCUITBREAKERISI
COMMUNICATIONSOPTION
OUTPUT RECEPTACLEPAHEL ISEVERAL TYPES)
BATTERY CABLE AHOCONNECTOR TO ADOITIOHALBATTER CABINET
tOPTIOHAL)
I
LOWERPROTECTIVECOVER
g g eeeeUPPER PROTECTIVECOVER
IHDUCTOR
(ii)Qi)
I Gc)LINE CORDIOPTIOHALI
IHVERTERSECTION
CARO CAGE
CAPACITORBANK
MAIHTRANSFORMER
PRIMEPUSHBUTTON
POWER SUPPLYINDICATOR
LEVELIHBFEET
FRONT VIEWDOOR REMOVED
REAR VIEWCOVER REMOVED
FIGURE I.2 LOCATIONS OF MAJOR SUBASSEMBLIESSERIES IOOO UPS (ALL 5KVA MODELS)
ShTTERYCONNECTORS
MMMMMMMMIIllMMllll
r—1I—oolL J
r 1lo o-8
J1~o ~ ti o~
l. A L
2%AMP HOURBATTERY DRAlKR
I
I
I
L
I
lI
I
I
LEVELINQFEET
FRONT VIEWDOOR REMOVED REAR VIEW
FIGURE I-5 LOCATIONS OF MAJOR SUBASSEMBLIESSERIES IOOO UPS (BATTERY CABINET)
2.0 SYSTEM INSTALLATION
2. I Site Pr aticn
2.l.l Environmental Considerations
The Series l000 must not be exposed to direct sunlight or other types ofradiant heat, and must not be subjected to environmental conditions whichexceed the Equipment Specifications stated at the front of this publication.
The clearance behind the UPS cabinet should be at least 6 inches (!5.25 cm) toollow for proper ventilation for the unit. Refer to the 'Series l000 UPSOutline Drawing', also included herein, for heat rejection specifications thatapply during operation.
As with most high power electrical/electronic systems, operation of a UF'S. athigh altitudes requires special site consideration. For high, altitude opera ions(above I000 meters), consultotion with an Exide Electronics Field ServiceEngineer is recommended to ensure that appropriate mechanical end .
-electrical accommodations are mode.
2.I,2 Site Preparation Checklisth
~Sice:
I. The UPS will be located:
2. Measure the dimensions of this location.
Depth:Vlidth:Height:
lt
3. Compare, these measurements with the "Series l000 UPS Oi.<lineDrawing" at the back of this publication.
Is there sufficient depth?Is there sufficient width?Is there suf ficient height'?
4. Subtract the depth and width meosurements of the UFj from theamount you measured in step 2.
Remaining Depth:Remaining Width:
5. Compare the. amounts in step 4 with the service space andventilation requirements stated in the 'Series l000 UPS OutlineDrawing" at the back of this publication.
Is there suf ficient "Front" space?Is there sufficient "Bock" space?
7. Verify that the location of the system will not interfere withexisting electrical wiring or cable routing trays.
Power:
.2.
ls there a sufficient ac outlet within three (3) feet of the plannedlocation to connect the line cord of the UPS?
Will the UPS be located close to critical load equipment to allowfor power wiring or power cords to reach?
3. Have you consulted an eiectrician to determine if your poweroutlet for the UPS is adequately siied and rated, 'and safelygrounded.
9
Receivi the E i ent
General Description
The UPS cabinet and optional Battery cabinet(s) normally arrive on wooden.shipping pallets with corrugated exterior covering and plastic inner covering.Each cabinet is fastened to its own individual shipping pallet by metal bindingstraps, and comes standard with casters to aid in unloading and transporting..
Unloading and Preliminary inspection
A fork lift, or other material-handling device capable of one (I) ton loads,should 'be available for unloading aad positioning. The cabinet(s) should belifted by their shipping pallets and should not be tilted more than IS degrees.Be careful not to jar the cabinet(s) while transporting.
Check the outer protective covering of the unit for any evidence ofpenetration by sharp objects or severe impact damage that may have occurredduring shipment. If any. damage as a result of shipping is observed,immediately file a claim with the shipping agency cad forward a copy of thisclaim to:
EXIDE ELECTRONICS CORPORATION330l Spring Forest Rd.Raleigh, NC 27604ATTN: Customer Service
Unpacking and Detailed Inspection.0
Do not use sharp or pointed instruments to remove the outer covering, sincedamage to the contents could occur. After removing the protective covering,
-: inspect the contents for any evidence of physical damage, end compare eachit~ with the Bill of Lading. If damage has occurred or shortages ~e evident,contact Exide Electronics'ustomer Service Department immediately todetermine the extent of the damage and its impact upon further installation.
To remove each cabinet from its pallet, cut the metal binding straps'fastening"the cabinet to its shi'pping pallet. Unbolt either the front or rear pallet
member restraining the cabinet and carefully roll the unit off its pallet. Priorto installation, the unpacked UPS cabinet(s) must be protected fram moisture,dust, and extreme environments.
IO
2.3 Installation
2.3.l Posi tioning the Equipment
Carefully roll the cabinet(s) to the'area of installation, and determine thespecific location that the UPS will occupy as shown in your site layoutdrawings (if available). Do not roll the cabinets, over existing electricalcabHng, or across structures that will not support the combined weight of theUPS system. The Seri'es I000 UPS must be installml on a'evel, nonflammablesurface and must always remain in an upright position.
2.3.2
If the UPS is to be operated on a computer room raised floor, an openingbeneath the UPS cabinet may be required by cutting one of the raised fioorpanels. Refer to the "Series l000 UPS Outline'Drawing" for sizing andlocating raised. floor cutout..Move the unit over the specially prepared floortiles taking care to guide the casters around the floor opening.
Ensure that ample clearance for servicing is allowed as shown on the Series..I 000 UPS Outline Drawing", appearing at the back of this publication, Allowa minimum of 6 inches (I5.25 cm) behind the cabinets for air fiow md 36inches (9I.5 cm) in'front of the system for door movement and service
'learance.
Once in position, lower the leveling jocks to prevent the unit from rolling outof position, taking care not to raise all the casters off the floor.
Installing Optional Battery Cabinets (standard with all 5 KVA models)
I
Your Series 1000 UPS may be ordered with extended. bgttery protection timewhich may'equire the Iristallation of additional Battery cabinets. OneBattery cabinet comemtandard with all 5 KVA models. These cabinets are ofsimilar construction and 'are designed to sit adjacent. ta the UPS cabinet.Position and align each Battery cabinet on the left side of the UPS (whenviewed from the front). The order of the Battery cabinet(s) is not significant;however, the UPS cabinet must always be the farthest. cabinet to the right. Acabinet joining kit is included with each Battery cabinet towecurely fasten itto its adjoining cabinet., Each kit consists of two front joining brackets (witheight OIO-32 self-tapping screws) and two rear joining plates which aremounted using the existing screws on the rear cover. 'NOTE: A commonlyavailable nut driver ( 5/I 6 inch size) will be required to perform the following
-steps:
Open the front doors of adjoining cabinets, position the front joining bracketsas shown in Figure 2.0, and secure using the eight (8) OI0-32 self-toppingscrews provided.
Remove the upper and lower pairs of the $$ IO-32 self-tdpping screws .vhichfasten each adjacent side of the rear cover of each cabinet. Align the rearjoining plates, provided, over the exposed holes, as shown'in Figure 2.I, andinsert previously removed screws through the plates and rear covers. Se.urelytighten all eight (8) screws.
I I
JO IN INO BRACKET
NO.I0-32 SELF TAPPINO SCREWiS) PROV)OEO
I
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I.I
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I
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Ir
I
I.I
II
I
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I
BATTERY CABINET
JdtNINO BRACKET
UPS CABINET
FlGURE 2.0 BATTERY CABlNET FRONT [NSCALLATlON tEF REQUIREDl
The following procedure involves electrical connection of the Battery.system. Do not touch exposed connection points and use extreme care. Sincethe Battery system is an energy source in itself, dangerous voltages arealways present at exposed Battery connection points.
A hinged Battery connector cover is mounted at the upper rear of eachBattery cabinet Carefully loosen the screws securing the top of this coverand lower it to allow access to the Battery connectors. Insert the Batterycable connector from the UPS cabinet into the mating connector located atthe rear of the adjacent Battery cabinet, also shown on Figure? I. Do notforce this connector since it has been designed to fit in only one direction.Each additional Battery cabinet must. be similarly connected to its adjoiningBattery cabinet, if additional Battery cabinets are used.
After connecting each pair of Battery connectors, raise the protective coverand tighten the mounting screws. All Battery connectors should reside withinits protective cover.and be safely isolated from outside contact.
Electrical Connecti~
ln most cases your Series l000 UPS will be equipped with an optional linecord. This card. must'be mated with a corresponding ac power receptacle(outlet) at your site. Make sure an electrician has verified that the receptacleis properly grounded and Is adequately sized and rated to meet the currentrequirements of your configuration.
.Before performing. electrical connections, verify that all circuit breakers.inside the front door of the UPS cabinet are in their open or OFF positionbefore making connections to the UPS.
A number of standard output receptacle panels are available and are shown in-the 'Series l000 UPS One Line Diagram" at the bock of this publication. Thispanel, located-at the rear of the UPS'cabinet, provides the means. to connectyour equipment to output power provided by the UPS. Check to make surethat the output. pane4. specified and provided, matches the receptacle '
requirements for each piece of equipment to be connected.
.As a Factory-supplied option, your UPS may be configured for "hard wired"electrical connections for input and output power wiring omitting the need for
'eceptacles.Refer to the "Series l000 UPS Hard Wire ConfigurationDrawing" for a description of this option and specifications concerningtermination points within the UPS for connections.
All wiring required to connect your equipment to the UPS is not supplied byExide Electronics Corporation. Power cables for input and output connectionsshould be sized using the current specifications appearing in the Series l000UPS One Line Diagram". Electrical wiring must conform to appliatblenotional and local electrical codes.
l4
interfacing to Computer Equipment (Optional)
The Series IOOO may be ordered with a communications option to allow it tocommunicate with a variety of existing equipment you may already have atyour site. There are two paths of communication provided with this option:I.) a 9-pin female connector (DB-9 type) to allow remote electrical sensing ofcritical alarm conditions within the UPS, end 2.) a 25-pin female connector(DB-25 type) to allow interfacing to a variety of 'omputer terminalsconforming to E.IA,. RS-232C conventions. Remote electrical sensing via the9-pin connector is discussed in the next section.
The RS-232C port is located at the rear of the UPS cabinet and is shown onthe "Series 1000 UPS Outline Drawing". The optional Remote Terminal, ormost commercially available computer terminals meeting RS-232Cconventions, may be connected to this port. Such a device-must be capable ofboth receiving and transmitting data. Use of this terminal permits access tometering and system status information and its fvnction is discussed further inSection 3A.
The RS-232C standard is published by the Electronic Industries Association.and provides guidelines for interfacing communications equipment, such asthat provided by the Series l 000 and terminal equipment. The following is thepin configuration of the Series l000 RS-232C port, as referenced from acomputer terminal, according to referenced RS-232C terminology:
Pin No. . Signal Name
3
5,6
Transmitted Data(INPUT to UPS)Received Data(OUTPUT from UPS)Reqvest to Send(INPUT,to UPS)Clear to Send
. (OUTPUT from UPS)Signal ('ound
NOTE: Pins 5 and 6 are tied together.
RS-232C specifications. call for a maximum point-to-point transmissiondistance of 50 feet; however, in may cases distances not exceeding 250 feethave been obtainable. If greater distances are required or excessive electricalnoise levels are prevalent, commercially available modems and signal boostersmay be used to extend this distance indefinitely.
I ~e
e ~
A
Computer equipment" interfaced to the Series l000 system must be configuredto match the following communication specifications:
Baud Rate:. Word Structure:Transmissi on-ParitycDataFormat: .
'00 Baud8 Data Bi+ I Stop Bit
~ Full Duplex *,NoneASCl1
Exide Electronics recommends that dll com puter equipment i'nterfaced to thecommunications port of the UPS be'owered from a protected ac source suchas that supplied. by your Series l000. UPS., This will enable you to monitor theUPS emergency power supplying status during utilityoutages.
E
I
ter7
I. This terminal is compact
n 22
8&6 1H
uPPeR cAsa.- ONoH L1HE = - ON
LocAL.coPY OFF
Il.73 1N.
2.71 IH. HlGH ~
upsGONNE C,TQR ' 3
TERMIHA'O/HECTOR
CABL IH8P1N.- TO "P IHi,
e
7
F igure 2.2 Remote Terminal inetallatian Diagram
16
Interfacing for Electrical Sensing (Optional)
In addition to interfacing to computer equipment, the Series I000communications option allows remote electrical sensing of alarm"conditionswithin the lPi. A 9-pin (DB-9 type) female ccmector is used to provideinter face connections md is located at the rear of the UPS cabinet.as shownin the "Series l000 LPS Outline Drawing".
Refer to the "Series l000 LPS Interconnection Diagram" for informationregarding interfacing to this port.
0'%
~ S
.Eh
3.0 FLNCTlONALGESCRIPTION
3.l General Descri ion
3.l.l
UPS systems a e designed to combat the three mmt common power.disturbances which affect the reliable operation of your equipment, Thesethree conditions are I.) power line noise, 2.) power fluctuxQen, and 3.) suddenlees of power. Together, power line noise and voltage fluctuations account for
' major percentage of all power-oriented equipment problems although rarelydoes the operator associate these problems with input power.. Utilitypoweroutages, on the other hahd, cause immediately evident problems leading tolass of computerized data and decreased productivity. Fortunately, there iscn effective, economical solution: an uninterruptible power supply system.
Normal Mode
3 1.2
During normal function of your Series l000 UPS, is to provide two (2) ~icpaths of p'ower flow:
The first path leads from the input of the UPS (line cord) through the powerconditioning phase of 'the UPS to its output, supplying your critical loadequipment.
The second path provides power in the form of a nominal.charging currentfrom the input of the UPS to the Battery system. The Battery system storesthis power in the form of electrical 'energy for subsequent conversion tooutput power for your critical load equipment when input pow'er is no longeravailable (during emergency power operation).
The heart of the UPS power architecture, which serves to simultaneouslyroute these two paths of power, is the "four quadrant" Power InverterBridge. This subsystem- eliminates a complete power .conversion stage (the"rectifier") used in existing UPS systems, resulting in dramatic systemcompactness and improved per formcnce.
NOTE: When.not energized, the LPS is always functioning in bypass mode.
Emergency Power Mode
Plhen the utilityvoltage or frequency fall outside specified limits, transfer toEmergency Power Operation mode is automatic. While in this mode, energystored in the Battery system is being converted for use by your criticalequipment. During this mode, alarm indications „such as BATTERYDISCHARGER", "SYNC LOSS", and "AC INPUT FAILURE" will activatedepending upon the extent of the utility outage and the charged state of theBattery. If utility power returns before the battery is discharged, the UPSwill automatically resynchronize with the utility, return to utility power, andrecharge the battery. If the battery is discharged completely before theutility power. returns, power to the load will terminate and the UPS will shutitself off, transferring to bypass mode operation. Upon return of utilitypower, the UPS will autarnatically execute a start-up sequence.
IS
Bypass Mode
The primary goal of the UPS is to reliably supply ffawless power to your, critical equipment. To effectively achieve this goal, it must be able toperceive input power conditions, output powu conditions (overloads, faults,etc.), and also internal malfunctions which could jeopardize continued reliableoperation of your system. To aid the UPS in meeting its goal, a third path ofpower flow is provided to prevent overload damage to the UPS, and also toisolate the UPS from the critical load in the unlikely event of cn internalmalfunction.
This third path of power leads from the input of the UPS directly to theoutput of the UPS through an Electromechanical Bypass Switch, bypassing thePower Inverter Bridge and all power conditioning elements of the UPS.
The Electromechanical Bypass Switch is used to "transfer" the UPS from itsnormal power protection mode to bypass mode operation, in case of an outputoverload condition or malfiection of the UPS. This "transfer" time to=activate the switch is usually small enough so that it will not be perceived byyour equipment; however, the speed of the "transfer" moy be increased byutilizing an optional. Static Switch, which may or may not be required,:depending upon the sensitivity of your critical load equipment. Figure 3.0depicts a simplified power schematic of your Series l000 UPS.
Under the following conditions, the UPS will automatically "transfer" the UPSto bypass mode operation, so that your equipment will be supplied powerdirectly from the utility:
I. "OUTPUT OVERLOAD" overload condition exceeding l05% of fullload for over ten minutes. A '5HUTDOWN lMMIKENT."warning
. light will be given after eight minutes.
2. If the Internal temperature of the UPS exceeds a safe operatingrange, the "OVER TEMP" and "INVERTER FAILURE" warninglights will go on.
3. If the output voltage momentarily exceeds preset limits.
4. If the output waveform distortion exceeds allo+able limits.'.
6. Upon start-up, the UPS always begins in bypass.
Return from bypass to normal operation is automatic, in most cases, endrequires about'one (I) minute except when restarting from a dead batterystate. In the case of "OUTPUT OVERLOAD" and "INVERTER FAILURE"alarm conditions, the unit will rerhain in bypass and requires pressing theManual Restart Pushbutton. In order to,return from bypass mode operation,two conditions are necessary: utility voltage end frequency must be withinspecifications, and the U>S must be able to synchronize the inverter output tothe utilitysource.
l9
BATTERYC IRCU ITBREAKER
0 h
IZOVBATTERY
PWMF1LTER ELECTRO-
MECHANICAL OUTPUTINORMALI 0 0—
CR ITICALLOAOIS)
L INE
L INEC IRCU ITBREAKER
0 0
L J
, AC. UTILITY
NEUTRAL
AC DISCONNECTSWITCH
IBYPASS)
STAT ICSWITCHBYPASSIOPT IONAL)
FIGURE 3.0 SIMPLIFIEQ POWER SCHEMATIC OF SERIES .l000 UPS ITYP.)
ALARM INDICATORSDIGITAL METERDISPLAY .
ALAIIMSILENCEPUSH BUTTON
EMEROENCY POWER OFFPUSH BUTTON IOPTIOHAL)
SYSTEM TESTPUSH BUTTOH
LA% LOAD Clzz y~zyo.z AQt Nz
'OH
SWING DOWN COVER
METER INOINDICATORS ..
SYSTEM METER INC gE YPADI
OFF
UPS ON/OFFKEYSWITCH
. FIGURE 3.1 SERIES 1000 DISPLAY PAHEL
~ ~
ilAHUALAE TAAT
0 L P8 FT
MAHUAL RESTARTPUSHBUTTOH AUDIBLE
ALARMVOLUMECOHTROL
REAR VIEW
FIRJRE 3.2 SERIES 1000 D)SPLAY PAHEL
3.2 Control Ftmctions
Most of the operational control functions are accessed via pushbuttons locatedon the front door, of the UPS cabinet. These control features include alarmsilencing, manual restart, audible alarm volume control, and a system testfeature. Power control fynctions which determine power flow through theUPS is accomplished by setting circuit breakers located on'he inside panelaccessed by unlocking and opening the front door of the UPS cabinet.
3.2.l System Control Functions
3.2.I. I ~ Audible Alarm Volume Control
3.2. I 0
This switch has three (3) settings (LOUD, SOFT, and OFF) and is used tochange the volume of the system audible alarm. In the LOUD position, theaudible alarm-will reach a sound level of approximately 85 dBA. In the SOFTposition, the audible alarm will reach a sound level of approximately 65 dBA..ln the OFF position, the audible alarm will not sound at all.
Alarm Silence Pushbutton-
This pushbutton is used to silence the audible alarm. The alarm will soundagain at the reoccurence of on alarm condition.
3.2.I.3 Manual Restart Pushbutton
This pushbutton is used to restart the UPS after an OVERLOAD or INVERTERFAILURE problem has been corrected.
.3.2.1.4 System Test Pushbutton
This pushbutton initiates a test routine of-the system by turning OFF the,static line. disconnect switch and transferring the critical load to, battery(simulating a utility power outage). When the pushbutton is relea'sed, thecontrol circuitry resynchronizes the Inverter to'the input line, recloses thestatic line switch, and resumes battery charging.
3.2.I.5 Prime Pushbutton
This pushbutton initiates a forced start of the control logic power supply.This switch is useful in start-up with a discharged battery, and its location for,your model is shown in Section I.O.
WARNN4: Unit will not. shut itself OFF when manually started, andprolonged operation .without utilityvoltage present will severely discharge thebattery.
23
3.2.2
3.2.2.l
Power Control Functions
Line Circuit Breaker
The purpose of the Line Circuit Breaker is to connect or disconnect ac powerto the primary of the main transformer of the UPS. WARNNG: voltage maystill be present at the output connection/receptacles due ta bypass modeoperation even if the Line Circuit Breaker is OFF. The Line Circuit Breakeralso provides overload protection for the UPS system. The circuit breaker is amolded-case type with a thermal-magnetic trip mechanism.
3.2.2.2 Load Circuit Breaker(s)
Depending upon the number of devices being powered from your UPS system,your UPS may contain one to six (6) Load Circuit„Breakers. Each circuitbreaker provides both ON/OFF control, and overload protection for itscorresponding load equipment. The circuit breaker may be manually operatedby positioning its handle to the ON or OFF position.
3.2.2.3 Battery Circuit Breaker
The purpose of the Battery Circuit Breaker is to connect 'or disconnect. the-.Battery System from the UPS; The circuit breaker also provides overloadprotection and isolation protection for the Battery System. It is also amolded-case type with a thermal-magnetic trip mecbinism. WARNINGBattery voltage will always be present at the input termirals of the BatteryCircuit Breaker since the Battery system is an energy sour'n itself.
3.2.2.4 UPS ON/OFF Key Switch
This key switch is, located in the upper front of the UPS cabinet and is used toactivate or deactivate UPS operation. WARNING: .Turning this swftch to itsOFF position does not remove power from the output of the UPS. Power willbe supplied to your critical load via bypass mode operation.
3.2.2.5 Emergency Power OFF Pushbutton (Optional)
ln case of emergency, the Emergency Power Off switch is provided toimmediately disconnect input and output power from your UPS system. Thepushbutton switch is located in the upper front area of the UPS cabinet abovethe ON/OFF ~Key Switch.
I
Once the pushbutton has been depressed, it will be locked in place until thekey is turned to the alternate position.
24
3.3 hAeteri Fwmticns
3.3.l
The Display Ponel provides the primary means of operator interaction withthe UPS system. The panel is accessed by swinging down the hinged, plasticcover located in the upper front area of the UPS cabinet. All systemmetering reques+ alarm indication, and system test functions-are located onthis panel.
System7hetering Keypad
All metering functions of the Series l000 UPS are implemented by pressing asequence of system metering keys located on the Display Panel. There are six(6) keys arranged in two rows. Each metering request requires pressing twokeys. By merely pressing a tw~ey sequence, a requested function isimmediately executed.'etering information is presented digitally on anumeric display located to the left of the
keys.'.3.2
3.3.3
Numeric Display
All metering information is presented digitally on an LED display located tothe left of the. System Metering Keys. This 7-segment numeric display iscapable of displaying up to 3'charocters simultaneously. All displayed meterreadings are average values
Available Metering Requests
The system meter is activated by pressing a two-key sequence of systemmetering keys. All values displayed are limited to the three digits that maybe represented on the numeric display. If a system metering key is notdepressed within five minutes, the numeric display will be blanked to conservepower. The following requests are available by pressing corresponding systemmetering keys.-
LFK VOLT - This key sequence causes the voltage at the line, (input) connection to 5e displayed. During bypass mode operation,
this value will represent. the voltage supplied.'o yodr criticalequi pm ento
LOADVOLT,- This sequence causes the voltage at the UPS output,to be displayed. During bypass made operation, this value willrepresent the voltage at the output of the lnverter.
C»
d.
BATTVOLT- This sequence causes the series battery voltage to bedisplayed. With the Battery Circuit Breaker closed, this value willbe the same as the voltage supplied to the Inverter.
LihE AMP - This sequence causes the current at the line (input)connection to be displayed. During bypass mode operation, thisvalue will represent the current supplied internally to the UPS, mdwill not reflect bypass current supplied to the load.
e. LOAD AMP - This sequence causes the current being supplied bythe inverter section of the UPS to be displayed. During bypass
25
mode operation, this value should be approximately zero.
f. BATT AMP - This sequence causes the current charging ordischarging from the Battery system to be displayed. A positivevalue denotes charging; negative denotes discharging.
g.'~ HZ"- This sequence causes the power frequency at the line(input) connection to be displayed.
h. LOAD HZ - This sequence causes the power frequency at theinverter output to be displayed.
i. 8ATT HZ - This sequence generates an indicator test tb verify thatall alarm indicators are operable. All alarm indicators includingthe audible alarm are activated.
26.
Alarm Indication
When an alarm condition occ'urs, the audible alarm will sound to notify theoperator of a change in status. The alarm will continue to sound until it issilenced by pressing the ALARMRESET key on the Display Panel or until thealarm condition subsides. At each occurrence of a new alarm, the audiblealarm will sound again.
When the Audible Alarm Volume Control switch is in either the LOUD orSOFT positio~ the alarm will sound for„approximately thirty (30) secondsafter any alarm status indicator lights 'on the Display Panel. The alarm will'silence automatically if the status condition causing the alarm stops.
Many alarms merely alert the operator of a problem within the UPS which, ifnot addressed, could impair future operation of the UPS. Other alarms resultin a "transfer" to bypass made operation signalling that the UPS is no longerable to deliver suitable quality power to the load, and has isolated itself fromthe critical load. During bypass mode operation, the utilitywill be supplyingthe critical load and power protection will no longer be provided.
Alarms- may also be latched or unlatched. Once a latched alarm occurs, it isstored by the UPS until it is no longer active cad has been reset. Anunlatched alarm is present only as long as the alarm condition exists. The
, alarms are listed in the following sections by the corresponding messageappearing on the Display Panel.
TABLE.3.0/
SERIES I000 LPS - ALARMINDICATIONS
SYSTEM NORMAL - Line is supplying power to. theUPS. The&PS is controlling the load voltage, andcharging or maintaining the battery.
ALARM - This indicator flashes whenever an alarmcondition exists. The operator must swing down theDisplay Panel cover-and view other alarm indicatorsto determine the exact alarm.
LOW BATIERY - Battery voltage is belaw the l28Vdc limit. Alarm condition subsides-when the battery
,.voltage reaches 132 Vdc.
BATTERY DISCHARGE - Battery is supplying asignificant amount of power to the load.
OUTPUT OVERLOAD - Output current exceeds themaximum rating of the system.'f output currentexceeds l05% of system rating for ten (l0) minutes,the system will respond by transferring to bypass
when the source is available.
SYNC LOSS - The utility line frequency has exceededsafe operating tolerances ( —+ I Hz or —+ 3 Hz, switchselectoble) and/or UPS is not synchronized within 5
,phase angli of desired operating point.
AC INPUT FA5 ERE - The line voltage is not withinnormal operating range for the equipment, within+l3% to -20% of nominal. The load is being poweredby the battery, if not in bypass mode operation.
OVER TEMP ="The internal temperature of the UPScabinet is above the 65oC limit. UPS will operate onbattery until battery is discharg~ or the system willgo to by movement and service clearance.
SHUTDOWN IhMhlhENT - Inverter shutdown .isimminent. Shutdown imminent will be triggered bythe battery discharging below I IO Vdc. The load willbe dropped when the battery falls below 95 Vdc orthe overload exceeds 105% for IO minutes unless thebypass is available.
ON BYPASS'- The load is receiving power which is"bypassing the power protection circuitry of theURS. This is referred to as'ypass mode operation.
INVERTER NOT READY - The UPS is operating inbypass mode, and the inverter is''not ready to supportthc critical load.
INVERTER FAILLRE (push the hhmual RestartPushbutton to clear) - The inverter was imabie totransfer from. bypass to normal mode operation afterthree 'tries or an - unrecoverable condition existed.Insufficient battery power .to start inverter (alsolights BATTERY FALLT). Operator Intervention isrequired to resume normal mode operation exceptwhen the BATTERYFALLT indicator is also present,then return is automatic.
BATTERY FALAT - Thc battery voltage was lessthan the 95 Vdc required to start the inverter. If linevoltage is available, the system will respond byoperating in an alternate charge mode for 5 minutesand will then attempt to restart the inverter.
28
4.0 LPS OPERATION
4.! Introduction
The procedures detailed in this section involve detailed operator procedures toachieve a desired operating condition in the UPS. The operator should readthe preceding section of this manual, entitled "Functional Description", tounderstand the characteristics of each subsystem being controlled and theoperating controls and indicators available. Otherwise, the operator may notcompletely understand the. consequences of his actions.
Saf Informatlcn
Initial operation should not be performed until the installation has beeninspected by an electrician or other authorized personnel so that it conformsto local and notional electrical and buil'ding codes.
IDuring operation of the UPS, there qre dangerous voltages present within thecabinetry. Operation of the equipment with the cabinet doors open orprotective panels removed should be performed by qualified service personnelonly.
Pricx'o Stcrti the lJ'S
Step I If an optional Battery Cabinet has been supplied (stan*rd for all 5KVA models), be sure it has been connected as described inSection 2.0. Verify that the Line Circuit Breaker and all LoadCircui t Breaker(s) are in their OFF condi tion.
Step 2 Turn the UPS ON/OFF switch to its horizontal (ON) position. Turnon the Battery Circuit Breaker. If the. circuit breaker will notclose, DO NOT TRY TO RECLOSE,'O NOT PROCEEDFURTHER. Contact your dealer or the Factory for assistance.
Step 3 A special test fmction is provided to verify that the equipmentfunctions, without exp'osing its components to utility and loadpowere .
Step
In the following steps, status indicators, as well as the audiblealarm, may activate. Ignore these at this time but you may silencethe audible alarm by pressing the ALARMOFF pushbutton on theright side of the Display Panel.
4 Take on ordinary pencil and insert the erase end through the tophole in the inside cover panel and momentarily press the PRIMEpushbutton on the circuit board behind the hole. A red light shouldappear immediately in the lower hole in the inside cover panel.
Step 5 If a red light does not appear, your Series l000 is definitelymalfunctioning. DO NOT PRO(RED FURTHER; call your dealer
29
Step 6
Step 7
or the Factory for assistance.
If the red light appears but goes out in a few seconds, your Seriesl000 may be functioning properly, but the battery may be toodischarged for startup (proceed to step I I).
I
lf the red- light stays ON but no status indicators light within 30seconds, your Series I000 UPS is definitely malfunctioning. DONOT PROCEED FURTHER; call your dealer or the Factory forassistance.
0,
Step 8
Step 9
Pr'ess the System Metering Keys "LOAD", followed by "VOLT", toobtain a display of inverter output voltage. A value should appearin the numeric display within 30 seconds. It should stabilize towithin 2 percent of the output voltage recorded'on the nameplate
Press the System Metering Keys 'LOAD", followed by "HZ", toobtain a display of output frequency. A value should appear in thethe numeric display that corresponds to the frequency on thenameplate (within approximately I Hertz).
NOTE: ln the event that no voltage or frequency is displayed, yourSeries I 000 UPS is malfunctioning. DO NOT PROCEEDFURTHER; coll your dea.er or the Factory for assistcace.
Step 10
Step 11
If the metered parameters are correct, turn OFF the BatteryCircuit Breaker. Your UPS is ready for powering up and load
'onnections.
Ensure that he Battery Circuit Breaker, Line Circuit Breaker, andLoad Circurt Breaker(s)'are OFF.
Step I2 Connect- the input- power corp if supplied, to a properly ratedelectrical outlet. Check to moke sure that the system ratedvoltage and frequency. shown on the rear of the unit match thatsupplied by the outlet. In order to maximize'use of the ac inputvoltage rage specified, the nominal line voltage should be within 5percent of-'.the nameplate rating. Turn on your building circuitbreaker supplying the UPS.
Step 13 Connect your load(s) to the receptacles at the rear of theequipment. Total KVApower is not to exceed system rating.
CAUTION: Even if the Line Circuit Breaker is in the OFF position,there will be ac power present in the breaker panel area and at theLoad Circuit Breakers as lang as the line cord is connected to an acsource.
30
Step To verify bypass operation, turn on the Load Circvit Breaker(s).Your load(s) should now receive ac power and operate normally.No indicators or lights should show in the Series l000 UPS. If cnyLoad Circuit Breakers do not remain closed, DO NOT. TRY TORECLOSE,.but check your load for shorts and verify that thecurrent rating is less than the breaker rating.
Starti the U S
Step I
Step 2
Step 3
Step 4
Step 5
Verify that the UPS ON/OFF Switch is in its horizontal (ON)position. Move .the Battery Circuit Breaker 'and Line CircuitBreaker to the ON position. If a breaker does not remain closed,.DO NOT TRY TO RECLOSE IT. Do not proceed further. Contactyour dealer or the Factory for, assistance. The red Power SupplyIndi'cator visible on the lower front protective cover should light.
During the startup sequence of the unit several alarm lights, aswell as the audible alarm, will activate. Ignore these at this timebut silence the audible alarm by pushing the. Alarm SilencePushbutton on the right side of the display panel. The "ONBYPASS" ond 'BATTERY DISCHARCX" statvs indicators shouldlight within 30 seconds. If they do not, you may have on extremelydischarged battery.
When starting from an extremely discharged battery (a batteryvoltage below the level at. which automatic startup of the UPS willoccur, 95V when loaded), press the Prime-Pushbutton located insidethe top hole in the lower protective panel. Upon pressing thePrime Pushtutton, the unit will go into a charge sequence routine.During this routine, existing alarms will remain but 'BATTERYFAULT" and "INVERTER FAILURE" indicators will also light. Inaddition, you will not be able to access digital metering, and allother alarms will be locked out.
4
The unit will remain in the charge sequence routine until thebattery voltage remains above 95V when the inverter startup isautomatically Initiated. When the charge sequence routine isdiscontinued all alarms will go off and "SYSTEM NORMAL"shouldcome on. EXCEPTION: "LOW BATTERY" indicator will remainON until battery voltage has recovered to I 32 VDC.
If the "OOTPUT OVERLOAD" indicator is on, measure outputcurrent by'pressing the "LOAD"and "AMP" metering keys. If thecurrent indicated in the system meter exceeds the'system ratingshown "on the nameplate, reduce your current load requirements.
Press the metering keys: "LOAD" and "VOLT" to show ac output-voltage on the system meter. If "SYSTEM NORMAL" is notindicateg or if the output voltage is not within 2 percent of thenameplate rating, your equipment is malfunctioning. Turn allcircuit breakers OFF. and call your dealer or the Factcry forassi stance.
3I
Step 6 Press the System Test Pushbutton to exercise a system diagnosticroutine. The status indicator "SYSTEM NORMAL"will go out ondthe 'BATTERY DISCHARCZ" indicator'should light. This wiltdepend on load requirements and the battery's charged condition.Release the System Test Pushbutton, and the '5YSTEM NORMAL"indicator will light. All red alarm indicators should be off at thistime. Power to your critical loods should not be interrupted.
Step, 7'o verify that the UPS can supply power'to the load without utilitypower, turn the Line Circuit Breaker OFF. The indicators shouldchcnge as follows: '5YSIEM NORMAL" —OFF, "AC INPUTFAILURE", "SYNC LOSS", and BATTERY DISCHARGER" -ON.Measure output voltage on the system meter by. pressing the"LOAD" and VOLT" metering keys. Output voltage should be .within 2 percent of the ncxneplate rating
Step & Turn the Line Circuit Breaker ON. The "AC INPUT FAILURE"and'SYNC LOSS" indicators should go out, and within 30 seconds, the"SYSTEM NORMAL" indicator should return'pproximately I 0 to.'5 seconds after the."SYSTEM NORMAL" indicator lights, the:-'BATTERY DISCHARCK" indicator should go'out.
Step 9 Press the system metering keyss 'BATT"and 'VOLTS" The systemmeter should read between l20 and l40 VDC.
Step, lO Press the metering keys:..'BATT" and "AMP". If "SYSTEMNORMAL" is the only indicator active, the system meter shouldread less than IO dc amps.
Step I I Close the front door of the UPS cabinet. Your Series l000 LPS isnow tested and ready to power your critical equipment.
~
'tep
l2 It is not necesscw'y to turn the Series IOOO UPS OFF when changingloads., While utility power is present, the only indicators denofingnormal'peration .of the UPS will be the green '5YS IEMNORMAL" indicator and "LOW BATTERY" until recharging isnearly complete.
32 '
Power 0 atim
When utilityvoltage or frequency fall ovtside specified tolerances, transfer tobattery back-up operation is automatic. Red alarm indicators svch as"BATTERYDISCHARCZ" 'SYNC LOSS" "AC INPUT FAILURE"will be light,depending upon the utility line status and battery condition. If utility powerreturns 'efore the battery is discharged, the UPS 'ill automaticallyresynchronize itself to the utility, return to utility power, and recharge thebattery. If the battery is discharged before the utility power returns, powerto the load will terminate and the UPS will shut itself OFF, transferring tobypass made operation. Upon return of vtility power, the UPS willautomatically execute a start-up return sequence from bypass to normal modeoper'ation. Thus, normal operation of thc Series l000 LPS is. restoredautomatically without manual intervention.
Transfer to B
The Series l000 LPS is equipped with a DPDT Electromechanical Switch as astandard means of switching to and from bylmss mode operation. In the eventthe inverter cannot maintain output voltage within tolerances, the UPS willautomatically transfer your load directly to thc utility. This transfer tobypass mode o peration may be caused by:
I 'OUTPUT OVERLOAD" exceeding I05% for over ten minutes. A'SHUTDOWN IMMINENT"warning light will be given after eightminutes.
2 If the internal temperature of the UPS exceeds operating limits,''OVERTEMP" and "INVERTER FAILURE" indicators will light.
3 If the output vol tage momentarily exceeds preset limits.
4 If the output waveforrn distortion exceeds allowable limits.
5 Input current exceeds Iirrits without output overload.
6 Upon start-up, the UPS always begins in bypass.
Stcndard bypass transfer end retransfer times are approximately 50milliseconds. For users whose equipment cannot tolerate a 50 millisecond mstransfer time, an. optional static bypass switch is available with a fourmillisecond transf er time. However, the standard bypass 'onfigurationprovides'otal isolation from the utility by establishing a local ground. Iteliminates both transverse and common mode utility noise from the criticalload. Use of static bypass requires carrying through the utilityneutral to theload side. Thus, common mode isolation is no longer provided.
33
4.7
An Uninterruptible Power Supply, in accordance with its prime function, isdesigned to continue supplying power even when its input power (supplied bythe utility) is removed. This poses special considerations when attempting topower-OFF the UPS for purpose of transporting or maintencnce cr underemergency condi tions.
The following steps. are used to deactivate UPS operation (your criticalequipment will continue being supplied via bypass mode operation):
Step l Turn the UPS ON/OFF switch using the matching key to a vertical(OFF) position deactivating UPS operation.
Step 2 Turn OFF (open) the Line Circuit Breaker.
Step 3 Turn OFF (open) the Battery Circuit Breaker.
To remove power from your critical load equipment:
Step 4 hhove the corresponding Lead Circuit Breaker(s) to their OFFpos I tlonso
Step 5 Unplug the input power cord before performing maintenance onthis equipment.
WARNNC
The Battery system is an energy source in itself, dangerous voltages arealways present within the optional Battery Cabinet or within the batterysection of the UPS cabinet.
34
Emergency shutdown of the UPS may be accomplished in one. of two methodsdepending upon whether cr not on Emergency Power OFF option has beenprovided with your equipment. This function should be used if smoke, fire,
or'xcessivenoise is observed in or around the UPS system, or if any undue riskto personnel or equipment is suspected during operation of the UPS. ExideElectronics also provides on optional Remote Emergency Power OFF devicesto be used as additional precaution from a remote location.
If your equipment is supplied with an optional Emergency Power OFFPushbuNen, simply depress the pushhutton to remove power hem the internal
,. circuit of the LPS end frozen your critical load equipment.
Refer to Section 3.2.2.5 for further information regarding the functionaldescription of the Emergency Power OFF Pushbutton.
If your equipment is not supplied with an optional EnMrgency Power OFFPushbutt~ unlock and open the front door of the ~ cabinet andimmediately move all internal circuit breakers to their OFF posi tion.
Disconnect the line cord, and do not restart the unit until the cause of theemergency has been identified.
35
MAiNTENANCElNSTRUCTlONS,
S.l lntroducticm
S.l.l Safety Information
There are lethal voltceges present within the UPS*cabinetry. Operation of thisequipment with the cabinet-doors open or protective panels removed should beperformed by qualified service personnel only." Should you suspect thatBattery Cabinet service is need~ refer the work to properly trained andauthorized personnel. LETHALVOLTACKSARE ALWAYSPRESENT 1N TMBATTERY CAB!&AT. Since the battery system is an energy source in itself,opening the Battery Circuit Breaker does not de-energize the voltage withinthe cabinet. 'Do not attempt to occess any area internal to the BatteryCabinet.
5.I.2 Purpose
This.~tion is intended for personnel who, as a minimum, have receivedpreliminary briefing on the equipment from an Exide Electronics Field Service .Engineer during the on site start-up of the UPS equipment. Only personnelfamiliar with the preceding sections of this publicaHon should performpreventive maintenance "on the, UPS equipment. Corrective maintenanceprocedures are beyond. the scope of this publication. Do not attempt toperform corrective rtfuintenance on- this equipment unless you have receivedformal training offered by Exide Electronics and have read the "Series l000Ser vice Manual".
5.2 Training
Exide Electronics provides maintenance training at Raleigh, North Carolina,USA. I' ~
Upon completion. of the basic training course, the student will (t) be able toperform first level corrective maintenance, (2) have a competent knowledgeof UPS operation, and (3) have a complete knowledge of ordering spare parts.The student will be provided with all necessary materials for successfulcompletion of the course
For further information regarding training and other services provided byExide Electronics Corporatton, contact your Exide Electronics Sales orSer vice Representative.
36
p4 ki
4
5.3
5.3. I
Corrective Maintenance4
Corrective Maintenance Contracts"4
Exide Electronics Authorized Service Representatives have the training andexperience to properly test and service the UPS for corrective maintenance.Contracts'or this service may be directly negotiated with the ExideElectronics Sales/Service Representative.
5.3.2 Contacting Exide Electronics for Service
In the unlikely event that an Exide Electronics Field Service Engineer isneeded, you may contact your nearest Field Service Office listed at the backof this publication. If your critical load is not in immediate jeopardy, try toschedule your calls during. normal working hours; however, if a question oremergency arises, a representative may be reached during most hours of theday.
5A Preventive hhaintenance
The Series l000 requires little preventive maintenance other than periodicinspection to verify that the unit is operating normally and that the battery isin good condition. A quick test of the latter involves pressing the "TEST"button for. about 30 seconds white monitoring battery voltage. Yourequipment must'e connected and Load Circuit Breakers ON at this time. Ifthe battery voltage holds up near l20 volts, the battery is normally good.
5.4.l General Housekeeping
The area in which the UPS operates must be kept dry and relatively dustfree. The area surrounding the UPS should be uncluttered so that access to
'hefront of the unit may be made quickly in case of emergency shutdown..The air intakes (front and rear bottom grill) and air exhaust (top rear ofcabinet) must remain unblocked at all times. Refer to the Series l000 UPSOutline Drawing" appearing at the bock of this publication for the location ofthese areas.
5.4.2 Power Connections
All power connections at the input, battery, and output terminals and circuitbreakers should be checked when the unit arrives, and also periodicallythereaf ter"at at least once every twelve months. During the inspection, checkall power cabling for abrasions and burn spots.
37
Cleaning
Never attempt to clean the UPS subassemblies. Accumulated dust or grimeshould only. be cleaned by an Exide Electronics Authorized ServiceRepresentative. The exterior panels can be cleaned with a damp cloth.
Bat tery Cabinet (optionao
The Battery cabinet is designed for truly maintenance-free operationthroughout the service life of the battery. After approximately five years,the battery system should be replaced to ensure continuous power protectioncapability of the UPS. Your Exide Electronics Sales or ServiceRepresentative can assist you in the purchase. and installation of a newbattery system. Never attempt to access any area internal to the Batterycabinet.
The battery cells used in the Battery cabinet are a maintenance-free, sealed,lead acid type. Under normal conditions, gas generation is controlled byrecombination in the cell such that no abnormal pressures occur. This uniqueproperty allows equipment installation in almost any location.
~TT 2«This specification describes a continuous duty, solid-state uninterruptiblepower supply system, hereafter referred to as the UPS. The UPS shalloperate in conjunction with the existing building electrical system toprovide quality power for electronic equipment loads. The system shallconsist of a solid-state inverter/charger, a storage battery, and electro-mechanical bypass switch, as described in the following specification.The configuration of the system is as shown on the system one-line drawing(See Appendix A).,
2. 0 SYSTEM DESCRIPTION
2.1 2~The UPS shall consist of the following major equipment:
2. 1. 1 One inverter/charger with transfer switch.
2.1.2 One enclosed battery pack.
2.2 Modes of 0 eratioI
The UPS shall be designed to operate as an on-line system in the followingmodes.
2.2.1
2.2.2
2.2.3
2.2.4
Normal -- The critical load is continuously controlled by theinverter. The inverter charger derives power as needed fromthe commercial ac source and supplies filtered ac power to thecritical load. In addition, simultaneous float charging ofthe battery occurs.
Emergency -- Upon failure of the commercial ac power thecritical load continues to be supplied by the inverter, whichwithout any switching, obtains its power from the storagebattery. There shall be no interruption to the critical loadupon failure or restoration of the commercial ac source.
Recharge -- Upon restoration of the commercial ac source, theinverter charger recharges the battery. This is an automaticfunction and causes no interruption to the critical loads
Bypass Mode -- If the UPS must be taken out of service foroverload, load fault, or internal failures, the bypass switchtransfers the load to the commercial ac power.
1
1'
3. 0 ELECTRICAL CHARACTERISTICS
The UPS shall have and be compatible with the following electricalcharacteristics:
3. 1 Inverter Char er In ut
Primary AC Nominal Voltage: volts +15%-20% (without causing batterybus to drop below the battery open circuit voltage), 1-Phase, 2-wire.
Frequency:(50 or 60)
Hz +5%
3.2 Inverter Out ut
3.2.1
3.2.2
Voltage:
Frequency:
volts, 1-Phase, 2-Wire
Hz (Same as nominal input frequency)(50 or 60)
3.2.3 Capacity:, kW at
3.3 Batter Pack S ecification
pf lagging ( KVA)
Battery shall be enclosed in a metal battery pack which shall either matchin appearance with the UPS module, or be fully enclosed within the UPScabinet.
5 minutes standard (battery ambienttemperature between 20 and 30 degrees C).
Expected life: 5 years or 200 full discharge cycles at fullload
3.3.4
3.3.5
3.3.6
Minimum Final Discharge Voltage: 1.66 volts per cell.
Nominal Float Voltage: 2.25 volts per cell.
Capacity: A lead-acid, high-rate type battery shall be usedas a stored energy source for the UPS. The battery shall besized to support the inverter at rated load or the kilowattload specified for the protection time indicated in Section3.3.2.
3.3.7 Battery Circuit Breaker: A molded-case, breaker shall beprovided for battery short circuit protection and a means ofmanual disconnection for battery maintenance.
4.0
4.1
GENERAL REQUIREMENTS
S stem Efficienc
The overall efficiency, input to output, shall be at least 90 percent withthe battery fully charged and the system supplying full-rated KW load,The manufacturer shall state the efficiency of the system in the proposal.
4.2 Com onents
All active electronic devices shall be solid-state and not exceedmanufacturer recommended tolerances for maximum reliability. Allsemiconductor devices shall be sealed. Yacuum tubes shall not be used.
4.3 Noise
Noise generated by the UPS under any condition of normal operation shallnot exceed a sound pressure level of 55 dBa measured I meter from thesurface of the UPS.
4,4
4.5
~Groundi n
The UPS output neutral shall be electrically isolated from the inputneutral to provide common mode transient and noise attenuation to thecritical load. The UPS output ac neutral shall also be electricallyconnected in normal operation to the UPS chassis providing local ground.The ac input ground must be connected to the facility ground.
~Mirin
Wiring practices, materials, and coding shall be in accordance with therequirements of applicable USA or equivalent standards.
4.6 Conductors
All power cables and buses shall be copper for maximum system performance.Aluminum is acceptable only in drawout power switching modules to minimizeweight.
4.7 Power T ormers
Input and output transformers windings shall be designed and manufacturedfor high efficiency. The efficiency of the power transformer shall notbe less than 97K. Windings shall be copper for reliability and efficiency.Insulation type shall have a temperature rating that is a minimum thehighest winding temperature calculated during the UPS 'peration.Transformer shall be mounted near the bottom of the UPS unit to providea low center of gravity.
4. 8 Materi al s
All materials and parts comprising the UPS shall be new, of currentmanufacture, ynd shall not have been in prior service, except as requiredduring factory testing.
4.9 EHI Su ression
Electromagnetic effects shall be minimized to ensure that computer systems,or. other similar electronic systems, shall neither adversely affect norbe adversely effected by the UPS.
4. 10 Sur e Protection
The UPS shall have built-in protection against under-voltage, overcurrent,and overvoltage, including low energy lightning surges introduced on theprimary ac source, and voltage and current surges on the output caused byload transfer between the UPS and an external synchronized source.
4. 11 Printed Circuit Board Interlocks
All plug-in printed circuit boards shall have mechanical means to prohibita board from being inserted into the wrong location.
r
4. 12 Control Panel
Standard module control panel shall be furnished and shall be equipped withthe following metering controls, and indicators. All status indicatorsshall have light-emitting diodes for long life.4.12.1 A single digital readout capable of monitoring during normal
operations any of the following shall be furnished:
l.2.3.',
5.6.7.8.
AC Input VoltageAC Input CurrentAC Input FrequencyDC Battery VoltageDC CurrentLoad VoltageLoad CurrentLoad Frequency
4.12.2 Status/Alarm Indication shall be displayed as follows:
I.2.3.4.5.6.7.8.
System NormalLow BatteryBattery DischargeOutput OverloadShutdown ImminentAC Input FailureOver TemperatureSync Loss
4
L
, 9.10.Il.12.13.14..
On BypassLoad Off ( Inverter Off)Inverter FailureBattery FaultSpareLamp Test
4.12.3
4.12.4
Audible Alarm -- A horn shall be located in the unit which isactivated upon any UPS alarm. Audible level shall be factoryset, but may be switched in the field to low or off positions.
Adjustable Controls:
l. Inverter AC Output Voltage Adjust*2. Inverter Current Limit Adjust*3. Meter Calibration Adjustments*
5.0 MICROPROCESSOR BASED TEST SYSTEM
The UPS shall incorporate a Microprocessor based test system thatfacilitates troubleshooting and maintenance.
5. 1 0 ratin Tem erature Ran e:
Ambient temperature +10 to 40 degrees C, Standard.
6.0 INVERTER/CHARGER
6. 1 General
The inverter/charger, hereafter referred to as the inverter, shall havea digital synthesized output. The inverter shall be capable of providingthe specified quality output power while operating from any dc sourcevoltage within the battery operating range. In addition, the inverter willsimultaneously float charge the battery.
6. 2 ~Out tThe inverter output voltage and capacity shall be as specified in theelectrical characteristics section and shall operate in accordance withthe following requirements.
I.t ~IItThe inverter steady-state output voltage shall not deviate by more than+2'1. due to the following conditions:
l. (N to 10'oad2. Ambient temperature variations3. Minimum to maximum dc bus voltage
* Factory Set
6.3.1 The inverter voltage shall remain within +8/ for inverter"drop" onto battery with full-rated load on its output.Recovery to +2/ shall occur within 100 msec,
6.4 Fre uenc Re ulation
6.5
The inverter free-running, steady-state output frequency shall not deviateby more than +Oel/ due to the following conditions:
l. Ãm to 100% load.2. Ambient temperature variation.3. Hinimum to maximum dc bus voltage.
Fre uenc Control
6.6
The output frequency of the inverter shall be'ontrolled by an oscillator,which can be operated as a free-running unit or as a slave for synchronizedoperation with the ac source. If the external synchronizing sourcedeviates from the preset frequency by +I to +3 Hz (switchable), theoscillator shall automatically revert to a free-running unit.
In ut Harmonic Su ression
6.7
The inverter shall be designed to limit the input harmonic current feedbackinto the source to a ~maximu of 10y. (typical 5%) total harmonic distortion(THD) with nominal input voltage and rated load on the inverter.
Transient Res onse
6.8
The inverter transient voltage shall not exceed +N'ue to a 100'5 step loadapplication or rejection with total load not to exceed inverter rating.
Transient Recov
The output voltage shall return to within +2'/. of the steady-state valuewithin 100 milliseconds.
6.9
6.10
~Over 1 oa
The inverter shall be capable of supplying currents and regulated voltagefor overloads up to 125% of full load current for 10 minutes. Audiblealarm shall indicate overload operation. The inverter shall transfer theload to bypass when the over-load period expires.
Fa lt Cleari Curre t i itThe inverter shall be capable of supplying an overload of 20M'f its full-load current rating for a minimum of 10 cycles.
6.11 Volta e Ad 'ustments
The inverter shall have a control to manually adjust the output voltage+5f from the rated value.
6. 12 Inverter OC Protection
The inverter shall be protected by the following alarms and trips, whichshall be independently adjustable for maximum system flexibility.6. 12. 1 OC Overvoltage Trip
6.12.2
6.12.3
6.12.4
Range: 2.54 to 2.46 VPC
OC Undervoltage Warning
Range: 2.2 to 2. 13 VPC
OC Undervoltage Shutdown Marning
Range: 1.83 to 1.8 VPC
OC Undervoltage Trip
Range: 1.7 to 1.58 YPC
6. 13 Out ut Circuit Breaker
A molded case circuit breaker shall be provided inside the UPS unit todisconnect and protect the critical load.
6.14 Power Tr a sformer
A dry type isolation shall be provided for ac input to the inverter. Inputtaps shall be provided to allow for various voltage applications.
6. 15 Ha netization Inrush Limitin
The initial magnetization inrush surge shall be limited to 10% of theinverter full-load current.
6.iS ~P
6.16.1 The inverter shall have a minimum input power factor of 0.9with nominal input voltage and while operating at full-ratedload.
6.16.2 The inverter shall be capable of operating loads of .8 laggingto .9 leading.
6.17
6.18
7.0
7al
. In ut Circuit Breaker
A molded case circuit breaker shall be provided inside the UPS unit forac input line disconnection and protection.
~Ca acit
The inverter shall have sufficient capacity to support a rated load andrecharge the battery to 90% of its full capacity within 10 times, thedischarge time.
Q $ > 0D esto ting,',~ 0Xt <la.
~t~GLhl /PQB ass Switch
7.2
An electro-mechanical bypass switch shall be provided as an integral partof the UPS. The bypass switch shall include transfer control logic tocause a transfer to the incoming ac source within three cycles after anydisturbance in or on the output, of the inverter which would eventuallyresult in failure of the inverter to supply critical load voltage withinspecifications.
0 tional Static Switch
8.0
A static bypass switch shall be incorporated to effect high-speed transferto the incoming ac source. Upon sensing any disturbance in or on theoutput of the inverter which would eventually result in failure of theinverter to supply critical load voltage within specifications. Theintegral transfer control logic will simultaneously open the invertertransistors and close the static bypass switch SCR's. The incoming acsource would then be paralleled with the output transformer terminals toprovide maximum continuity to the critical load. Sense and static transfertime shall be less than I/4 cycle after any disturbance. The bypass shallinclude the electro-mechanical switch as described above, which uponactivation by the transfer control logic provides positive disconnect ofthe line terminal of the output transformer and the line side of theincoming ac supply. During all operating modes the output transformerneutral and the incoming ac supply neutral will be hard-connected.
MECHANICAL DESIGN
8.1
8.2
nclos e
The UPS shall be housed in free-standing, dead-front enclosures with abolted steel framework. Steel shall be of 14 gauge or greater. Theoverall dimensions including battery will not exceed 40 in. high x 18 in.wide x 22 in. deep (101 x 46 x 56 CW).
Ventilation
Switching module shall be cooled by a thermostatically controlled fanlocated on the power-switching module, directly above critical components,
8.3
to ensure that the cooling air path is not obstructed. Fan motor shallbe equipped with sealed bearings. Air inlet and exhaust openings shallbe protected by perforated or slotted metal guards.
Cable Entr
8.4
The UPS shall include an integral input power cable at least 7 feet (2meters) -in length. The power cable will enter the UPS cabinet in the rearunless otherwise specified for top, side or bottom entry.
Modular Construction
The UPS solid-state power switching circuits and control systems shall bemodular in construction for ease of maintenance and to minimize downtime.
8.5 Power Switchin Modules
The solid-state power switching module shall be removable from the frontof the UPS.
8.6 Parts Placement
S7
8.8
The UPS shall be designed to permit ready access to modules and assemblies.Parts, test points, and terminals shall be placed so that they areaccessible for circuit checking, adjustment, and maintenance.
Power Connection
The UPS shall include three integral female connectors rated higher thanthe operating voltage. The connectors will be rear mounted. The UPS shallprovide for up to four internal circuit breakers for load connections whichcan enter the UPS cabinet available - rear, top, side or bottom.
Personnel S
8.9
The UPS cabinets shall be constructed so that internal power componentsaccess is not required for normal operation. High voltage warning labelsshall be clearly visible when any of the cabinet doors are opened.
in fPainted surfaces shall be cleaned, phosphatized, and finished with anelectrostatically supplied textured enamel of a minimum 2 mil thicknessof the manufacturer's standard colors.
9.0 ENVIRONMENTAL CONDITIONS
9.1 Ambient Tem e at
I. Operating: '+10 degrees to +40 degrees C.
2. Nonoperating and Storage: -20 to +70 degrees C.
9.2 ~R1 i audit
1. Operating: 0 to 95K for temperatures from +10 to +40 degrees C,excluding condensation due to temperature change.
2. Nonoperating and Storage: 0 to 95%, excluding condensation due totemperature change.
IC
9.3 Barometric Pressure
1. Operating: From sea level to 7,000 feet above sea level.
2. Nonoperating and Storage: From sea level to approximately 40,000feet.
10
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STONE Ek WEBSTER ENGINEERING CORPORATIONS EXECUTIVE CAMPUS. P. O. BOX 52OO
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PURCHASE ORDER NO. NMP2-E035A RESPONSE RE/'D BY: PENDING MICROGRAPHICUNINTERRUPTIBLE POWER SUPPLIES ACCEPTABILITYNINE MILE POINT NUCLEAR STATION - UNIT
2'IAGARAMOHAWK POWER CORPORATION
110615315 REV. 1(02-14-85) INTERCONN DIAGRAM FOR 5KVA UPS .. . 1.560-229-040A110614125 REV. 1(02-'14-85) OUTLINE DRAWING FOR 5KVA UPS 1.560-229-041A110611496 REV. 1(02-14-85) ONELINE DIAGRAM FOR 5KVA'UPS '.560-229-042A .SERIES 1000 UPS SINGLE PHASE UPS B.O.M. FOR 5KVA UPS -.1'560-229&43A-110 711 922 REV. 7(06-85) SCHEMATIC DIAGRAM FOR 5KVA UPS 1.560-229-044A "
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Static Bypass Switch—provides uninterrupted transfer upon inverter failure within 4 msec.
t:mergency Power Off (EPO)-cotnptetely isolates the UPS unit from line and toad. Power to the load isterrupted until EPO is manually reset. EPO can be provided either locally, or remotely and locally.
u. Rect( Mounting—pn)vides hardware necessary to install UPS and/or battery cabinet(s) in a standard 19" rack. If .
two or more cabinets are provided (electronics plus battery), they can be mounted vertically in one rack orhorizontally in adjacent racks.
3 CSA Kit-provides additional hardware necessary for compliance to CSA requirements. Available far on units tobe Installed in Canada CSA kit invalidates the UL listing,
I
Cl Remote Monitor Panel —prides a wall mounted panel that can be located up to 100 feet from the unit anddisplays selectable alarms from the UPS unit. Equipped with horn; requires Communications Interface.
Cj Communications Interface —provides the following:Four sets of form B relay contacts are wired to a 9-pin connector (DB type). One set of contacts indicatesSYSTEM NORMALor SYSTEM PROBLEM. Remaining three sets of relay contacts are programmable via internalswitches to provide indications of any one of the remaining available alarms. RS232C port driven at 300 baud, 8bits, no parity and accessible from the rear of the unit. Each alarm is transmitted via the port as it is processed. Inaddition to the fixed alarm messages the UPS can be polled from a remote terminal for metering values by aseries of 2 key commands.
0 Language other than English—provides for, manuals, decals, warning signs, nameplate, RS232C optioninterface messages and control panel in one of the following languages: Spanish, French or German.Control panel alarms for these versions are identified by symbols rather than words.
0 Longer Battery Protectfon Time—provide battery times up to fow hours (or more on some models). Dependingupon the model, additional battery cabinets may be required.
Q External Battery—if the customer provides his own battery, the unit is available without internal batteries.External DC connections are hard wired to an internal terminal board.
CI Spare Parts —provides a kit of field replaceable subassemblies.
C3 Replacement Batteries-provides either battery drawer assemblies or complete battery cabinets that can be'ddedto existing units to extend battery protection time.
Q FCC Klt—provides compliance with U.S. Federal Communications Commission Class A15J Regulations.
Series 1000- Additional Battery Pack OptionsProvide Extended Protection Time
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OATE Z/I7/90 NHP58287
SUBJECT UPSY Event of Z/15/9a
(see attached diagram) ZVBB-OPSIA is a 75 KVAUninterruptible power Supply (UPS) that supplies essential powerto some plant BOP Loads. There are four circuit breakers on theunite
CB-I provides AC input ta the UPS.CB-2 provides DC input to the UPS.CB 3 connects the UPS output to the critical Load.CB-4 connects the maintenance supply to the load.
When CB-4 is closed and CB-3 is open the UPS is bypassed to allowmaintenance to be performed on the UPS. CB-3 and CB-4 are moldedcase circuit breakers with motor operators attached. The motoroperators open or close the breakers as required by the controlLogic circuits of the UPS- The CB-3 and CB-4 control circuitsare designed to" ensure. that power to the critical load is neverLost. The logic circuits in the UPS are powered by an internalZOv DC yower supply with battery bacJc-up. A small circuitbreaker and taggle switch (A27&BI and A27-SI, respectfully)connect the internal logic power suyply and battery to the logiccircuits. Prior to work being performed on any circuit boardinside the UPS the lagic power must be removed in order toprotect the circuit "chips" fram voltage spikes as the board isremoved from the unit- Whenever the logic power is to be de-energized the UPS must first be manually yut on the maintenancesource of power (close CB-4) until maintenance is completed.When repowering the logic power (closing A27CBI and A27-s1) itis possible to send a false "open" signal to CB-4 (prior to CB-3closing) thus causing a loss of paver to the loads.Disconnecting a plug connector to the motor operator on CB-4 willprevent the breaker from inadvertently opening.
On 2/15/90, QVSB-UPSIA was tajcen out of service byoperations, tr,ueferred ta maintenance supply, in order for an Ia C te~cian to perform corrective maintenance per WR f164138(EDC $2E10075). A Printed circuit card, A13A1, required amodification per the EDC. Xn order to remove the circuit cardfrcna the unit the logic power was d~ergized. When the repairwas completed the printed circuit hoard was reinserted into theunit and the operator re~ergized the logic power. The
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technician noticed that a "trip" signal vas showing on the~mimic< disylay on the unit. Tha operator de-energized the logicpover and then re-energizad it to sae if the logic trip vouldreset but it did not- The Logic pover vas again de-energized bythe operator and the A13AI circuit card was re-seated into itsslot. The l & C technician then restored the logic power foroperator. 'When pover vas restored to the logic circuits a falseopen signal vas sent to the CB-4 motor operator which opened CB 4causing a loss of power to the loads. Tha technician immediate].yrecognized that the breaker had opened, reached down, liftedmotor operator from CB-4 and reclosed the CB-4 breaker restoringpower to the Loads. At this time tha motor operator on cB-4 wasleft Lifted off the breaker and once again the logic povar wasde-energized. The printed circuit cards in the unit vere allchecked to verify that they vere aLL fuLLy "seated" into theirslots (some may not have been) and tha logic power was re-anergized. When power vas restored to the logic circuits thelogic trip signal was reset and the unit restarted normaLLy. Themotor operator vas reset onto breaker CB-4 and the loads weretransferred to UPS yower.
The loss of power to the loads vas caused by a number ofcontributing factors:
1.) Because operators infrequently operate the UpS they arereluctant to do so. When the l 6 C technician offeredto coach the operator through startup and shutdown oftha unit the operator was villing to accept it. (The II C technician vas a recognized expert in operating theUPS units). The operator manipulated tha controls ofthe UPS, for the most part, under the direction of thatechnician.
2.) The operations procedure for these units (NZWP-7I) isvery descriptive but does not cover avery evolution ofstartup and shutdown. Zt vould not have been adequatefor this evolution.
3.) The connecting plug for the control vires for the motoroperator for CB-4 vas not unplugged prior to turningthe logic power bac3c on. Zf it had been unplugged theCB-4 brealcer would not have inadvertently opened. Ztfs generally a practice to unplug this prior to re-energizing logic pover but had been missed in thisevent. (Zt should be noted that prior to fuel Load thelogic on these type of units had been re-energized manytimes vithout removing the ylug to cB-4 vithout asingle failure.)
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1.) Appropriate supervisors (Operations, I & C, SystemSupport) should inform their personnel that henceforthall UPS shutdowns and startups shall'e done byoperations personnel following the appropriateoperations procedure.
2.) Operations Procedure N2&P-71 should be corrected toadequately cover all startup and shutdown of these UPSincluding a step to remove the connector plug for C3-4when re-energized the UPS logic circuits.
3.) Additional training should be provided for operationspersonnel on manipulating the UPS controls per theoperating procedure. As a min+num, the operationpersonnel should become familiar with the locations ofall controls on the UPS that are described in theoperations procedure. Zn addition, operationspersonnel should be provided "hands-on< training on anoperating UPS using N2WP-71. This may require SystemEngineer support.
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NTERHALCORRESPON DENCE654'I<13FORM tt14ROZW
Ko-~a- 4>c -
9V NIAOARAUNN&AWK
ROM
TO
B. Crandall
H. Colomb
OISTRtCT Nine Mile Point Unit 2
OATE 2/17/90 RLE COOE ~58287SUMECT URBE Event of 2/15/90
c ou
(see attached diagram) 2VBB-UPSIA is a 75Uninterruptible Power Supply (UPS) that supplies essential gowerto some plant BOP Loads. Thex'e are four circuit breakers on theunit
CB-1 provides AC input to the UPS.CB-2 provides DC input to the UPS.CB 3 connects the UPS output to the cxitical load.CB-4 connects the maintenance supply to the load.
When cB-4 is closed and CB-3 is open tha UPS is bypassed to allowmaintenance to be performed on the UPS. CB-3 and CB-4 are moldedcase circuit breakers vith motor operators attached. The motor,operators open or close the breakers as required by the controllogic circuits of the UPS. The CB-3 and CB-4 control circuitsare designed to ensure that power to the critical load is neverlost. The Logic circuits in the UPS are powered by an internal20v DC power supply vith battery back-up. A small circuitbreaker and toggle svitch (A27WB1 and A27-S1, respectfully)connect the internal logic power supply and battery to the logiccircuits. Prior to vork, being performed on any cixcuit boardinside the UPS the logic power must be removed in order toprotect the circuit "chips" from voltage spikes as the board isremoved from the unit. Whenever the logic power is to be de-energized the UPS must first be manually put on the maintenancesource of power (close CB-4) until maintenance is completed.When repovering the logic pover (closing A27-CB1 and A27-sl) itis possibl'e to send a false "open" signal to CB-4 (pxior to CB-3closing) thus causing a loss of power to the loads.Disconnecting a plug connector to the motox operator on CB-4 willprevent the breaker from inadvertently opening.
On 2/15/90, 2VBB-UPS1A was taken out of service byoperations, transferred to maintenance supply, in order for an I5 C technician to perform corrective maintenance per WR $ 164138(EDC $ 2E10075) . A printed circuit card, A13A1, xequired amodification per the EDC. Zn order to remove the circuit cardfrom the unit the logic pover was d~ergfzed. When the repairwas completed the printed cfrcuft board was reinsertad into theunit and the operator re-energized the logic power. The
technician noticed that a "trip" signal was showing on the"mimic" display on the unit- The operator de-energized the logicpower and then re-energized it to see if the logic trip wouldreset, but it did not. The logic power was again de-energized bythe operator and the A13A1 circuit card was re-seated into itsslot. The I & C technician then restored the logic power for theoperator. 'When power was restored to the logic circuits a falseopen signal was sent to the CB-4 motor operator which opened CB-4causing a loss of power to the loads. The technician immediatelyrecognized that the breaker had opened, reached down, lifted themotor operator from CB-4 and reclosed the CB-4 breaker restoringpower to the loads- At this time the motor operator on CB-4 wasleft lifted off the breaker and once again the logic power wasde-energized. The printed circuit cards in the unit were allchecked to verify that they were all fully "seated" into theirslots (some may not have been) and the logic power was re-energized. When power was restored to the logic circuits thelogic trip signal was reset, and the unit restarted normally. Themotor operator was reset onto breaker CB-4 and the loads weretransferred to UPS power.
e
The loss of power to the loads was caused. by a number ofcontributing factors:
1.) Because operators infrequently operate the UpS they arereluctant to do so. When the I & C technician offeredto coach the operator through startup and shutdown ofthe unit the operator was willing to accept it. (The I& C technician was a recognized expert in operating theUPS units). The. operator manipulated the controls ofthe UPS, for the most part, under the direction of thetechnician.
2.) The operations procedure for these units (N2-OP-71) isvery descriptive but does not cover every evolution ofstartup and shutdown. Zt would not have been adecpxatefor this evolution.
3.) The connecting plug for the control wires for the motoroperator for CB-4 was not unplugged prior to turningthe logic power back on. Xf it had been unplugged theCB-4 breaker would not have inadvertently opened. Ztis generally a practice to unplug this prior to re-energizing logic power but had been missed in thisevent. (Zt should be noted that prior to fuel load thelogic on these type of units had been re-energized manytimes without removing the plug to CB-4 without asingle failure.)
/
x.
1.) Appropriate supervisors (Operations, X & C, SystemSupport) should inform their personnel that henceforthall UPS shutdowns and startups shall'e done byoperations personnel following the appropriateoperations procedure.
2.) Operations Procedure N2&P-71 should be corrected toadequately cover all startup and shutdown of these UPSincluding a step to remove the connector plug for gS-4when re-energized the UPS logic circuits.
3.) Additional training should be provided for operationspersonnel on manipulating the UPS controls yer theoperating procedure. As a minimum, the operationpersonnel should become familiar with the locations ofall controls on the UPS that are described in theoperations procedure. ln addition, operationspersonnel should be provided "hands-on" training on anoperating UPS using N2WP-71. This may require SystemEngineer support.
<INTERNALCORRESPONDENCE( +0AM 112 2 A 0240 4541-013
~esp ~ 6~o ~ Nvwaema I
4 MOHAWK
TO M. Colomb
FROM 'B. Crandall i DISTRICT Nine Mile Point Unit 2
DATE 2/17/90 FILE CODE ~58287SUBJECT UPS1A Event of 2/15/gO
(see attached diagram) 2VBB-UPS1A is a 75 KVAUninterruptible Power Supply (UPS) that supplies. essential powerto some plant BOP Loads. There are four circuit breakers on theunit:
CB-1 provides AC input to the UPS.CB-2 provides DC input to the UPS.CB-3 connects the UPS output to the critical load.CB-4 connects the maintenance supply to the load.
When CB-4 is closed and CB-3 is open the UPS is bypassed to allowmaintenance to be performed on the UPS. CB-3 and CB-4 are moldedcase circuit breakers with motor operators attached. The motoroperators open or close the breakers as required by the controllogic circuits of the UPS. The CB-3 and CB-4 control circuitsare designed to ensure that power to the critical load is neverlost. The logic circuits in the UPS are powered by an internal20v DC power supply with battery back-up. A small circuitbreaker and toggle switch (A27-CB1 and A27-S1, respectfully)connect the internal logic'power supply and battery to the logiccircuits. Prior to work being performed on any circuit boardinside the UPS the logic power must be removed in order toprotect the circuit "chips" from voltage spikes as the board isremoved from the unit. Whenever the logic power is to be de-energized the UPS must first be manually put on the maintenancesource of power (close CB-4) until maintenance is completed.When repowering the logic power (closing A27-CB1 and A27-Sl) itis possible to send a false "open" signal to CB-4 (prior to CB-3closing) thus causing a loss of power to the loads.Disconnecting a plug connector to the motor operator on CB-4 willprevent the breaker from inadvertently opening.
Descri t on o e t:On 2/15/90, 2VBB-UPS1A was taken out of service by
operations, transferred to maintenance supply, in order for an I& C technician to perform corrective maintenance per WR N164138(EDC $ 2E10075). A printed circuit card, A13A1, required amodification per the EDC. In order to remove the circuit cardfrom the unit the logic power was de-energized. when the repairwas completed the printed circuit board was reinserted into theunit. and the operator re-energized the logic power. The
H
technician noticed that a "trip" signal was showing on the"mimic" display on the unit. The operator de-energized the logicpower and then re-energized it to see if the. logic trip wouldreset but it did not. The logic power was again de-energized bythe operator and the A13A1 circuit card was re-seated into itsslot. The I & C technician then restored the logic power for theoperator. 'When power was restored to the logic circuits a falseopen signal was sent to the CB-4 motor operator which opened CB-4causing a loss of power to the loads. The technician immediatelyrecognized that the breaker had opened, reached down, lifted themotor operator from CB-4 and reclosed the CB-4 breaker restoringpower to the loads. At this time the motor operator on CB-4 wasleft lifted off the breaker and once again the logic power wasde-energized. The printed circuit cards in the unit were allchecked to verify, that they were all fully "seated" into theirslots (some may not have been) and the logic power was re-energized. When power was restored to the logic circuits thelogic trip signal was reset and the unit restarted normally. Themotor operator was reset onto breaker CB-4 and the loads *weretransferred to UPS power.
Cause of the Event:
The loss of power to the loads was caused by a number ofcontributing factors: A
Because operators infrequently operate the UPS they arereluctant to do so. When the I & C technician offeredto coach the operator through startup and shutdown
of'heunit the operator was willing to accept it. (The I& C technician was a recognized expert in operating theUPS units). The operator manipulated the controls ofthe UPS, for the most part, under the direction of thetechnician.
2.) The operations procedure for these units (N2-OP-71) isvery descriptive but does not cover every evolution ofstartup and shutdown. It would not have been adequatefor this evolution.
3.) The connecting plug for the control wires for the motoroperator for CB-4 was not unplugged prior to turningthe logic power back on. If it had been unplugged theCB-4 breaker would not have inadvertently opened. Itis generally a practice to unplug this prior to re-energizing logic power but had been missed in thisevent. (It should be noted that prior to fuel load thelogic on these type of units had been re-energized manytimes without removing the plug to CB-4 without asingle failure.)
E
sso e
1.) Appropriate supervisors (Operations, I & C SystemSupport) should inform their personnel that henceforthall UPS shutdowns and startups shall'e done byoperations personnel following the appropriateoperations procedure.
2.) Operations Procedure N2-OP-71 should be corrected toadequately cover all startup and shutdown of these UPSincluding a step to remove the connector plug for CB-4when re-energized the UPS logic circuits.
3.) 'dditional training should be provided for operationspersonnel on manipulating the UPS controls per theoperating procedure. As a minimum, the operationpersonnel should become familiar with the locations ofall controls on the UPS that are described in theoperations procedure. In addition, operationspersonnel should be provided "hands-on" training on anoperating UPS using N2-OP-71. This may require SystemEngineer support.
2VBB-UPSiAVHH075NSRNNORMAL AC LQW VOLT DIST TR A INSTt/CONT UPSCORRECT BATTERY GROUND ALARM PROBLEM QN UPSiA BY FIXING CIRCUIT CARD Ai3Ai PER EDC 2Ei0075 ATTACHED THI<~ ILL CQRPECT NU ISSANCE ANNUNCIATQR> ANNUMNTR> ~37> AK> OOB 50CPANDALL RDAVIS S89i002PEAVLER T89i004706. 50--'P57l-32ii04 —200-GiiG
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Display of Work Item DataSEEK Strategy: W164138 Sort fiel ds: WORKNO
GC Work Accepted by.... ~
GC Work Ac cep t date.....PMT Review By...........PMT Rev Date............PMT Test Rpt............PMT Ver.................PMT Ver Dt..............Accepted by.............Acceptance date.........Plan LO.................Fld Compl Log Dte.......SSS Logout Date.........Craft...................Man Hours...............OT Hours................Lead/Supprt Dpt.........Completion Entry Date...
DEAN J891005SITNIK T900219YSlTNIK T900219P ICCIRLLI W
'00220
900221'900216900221920311. 52. 5300900215
0 0 0 0 0 0 0 0 0 0 0 0 ~ 0 0 i 0 0 0 ojr C0 C0 g Ci C0 C0 g D g D 0 CRCC"-8 lO NO I 0 C0 lO < 0 C0 0
~ ~ 0 0 ~4 g 4 4 C0 Cb CD g C0 g 30 Ol I g C0 C0 C0 C0 C0 CC C0 C0 g D D D D 0 0 0, 0, D Q C0 C0 Q C0 C0 CC C0 lO hl 8 g g g g g 0l ~ w O C0 4 O C0 D C0 0l
~ ~ ~ ~ ~ *0 ~ 0 ~ ~ ~ ~ 0*
~ 4 I
Display of Work Item DataSEEK Strategy: W164138 Sort fields: WORKNO
Location... ~......Originator........Approved hy.......Approval date.....Received By.......Rcvd By Dt........Account Code......GC Review..GA RevieM Date....Inspection Reg'd..Left Planning.....IP Code...........Wor k Cond. Code...Work Type Code....Power Block Flag..Staged By..Staged By Date....Proj Dur......Assign to.........Assigned Date.....Sched. Start Date.Est. Comp l.SSS Notify.Corrective Action.Attachments.Mark Up No.RWP.GCIR Nos...NCR 'sCompleted by......Completion date...Sup ervi sor Revi ev.Supervisor Review Date.
L100322VBB-UPS1AVBB075NSRNNORMAL AC LOW VOLT DIST TR A INST/CORRECT BATTERY GROUND ALARM PROBLWILL CORRECT NUISS*NCE ANNUNCIATORNTRi 237'Kz 008. 50CRANDALL RDAVIS S891002PEAVLER T891004706. 50—9571-321104 —200-0110DEAN J891005N89100515GACMYBARTLETT J900111900220XXX900215900213900220900215PERFORMED EDC 2E10075 VERIFIED DOINANANANANABERTSCH P900215NICOLAOS S900216
ONT UPSON UPSlA BY FIXING CIRCUIT CARD *13A1 PER EDC 2E10075 ATTACHED THIS
ANNUM
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g GROUND CHECK ON DN 2BYS-BATlA WOULD NOT GIVE 2VBB-UPS1A GROUND ALARM
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0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 00% 5c lltlVAtOl
GC Nark Accepted bg.....GC stork Accept date.....PNT Review Bg...........PNT Rev Date............PNT Test Rpt............PNT Ver..PNT Ver Dt......-........Accepted bu.............Acceptance date.........Pl "n LO.......Fld Comp 1 Log Dte.......SSS Logout Date.........Craft...................Nan Hours...............OT Hours................Lead /Sup pr t Dp t.Completion Entry Dat
- DEAN891005SITNIK T900219YSlTNlK T90021'9PrCCrRLLX W
900220900~~2 1
900216900 21920211. 5
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. INTERNALCORRESPONDENCE5~1 013e FORM 112 2 A 0240 H
v w~e~~O MOHA~
FROlbjl
TO
B. Crandall i
M. Colomb
DISTRICT Nine Mile Point Unit 2
DATE 2/17/9 0 FILE CODE gMP5828NMP58287
SUBJECT UPBXA Event of 2/I.5/go
(see attached diagram) 2VBB-UPS1A is a 75 KVAUninterruptible Power Supply (UPS) that supplies. essential powerto some plant BOP Loads. There are four circuit breakers on theunit:CB-1 provides AC input to the UPS.CB-2 provides DC input to the UPS.CB-3 connects the UPS output to the critical load.CB-4 connects the maintenance supply to the load.
When CB-4 is closed and CB-3 is open the UPS is bypassed to allowmaintenance to be performed on the UPS. CB«3 and CB-4 are moldedcase circuit breakers with motor operators attached. The motoroperators open or close the breakers as required by the controllogic circuits of the UPS. The CB-3 and CB-4 control circuitsare designed to ensure that power to the critical load is neverlost. The logic circuits in the UPS are powered by an internal20v DC power supply with battery back-up. A small circuitbreaker and toggle switch (A27-CB1 and A27-S1, respectfully)connect the internal logic'power supply and battery to the logiccircuits. Prior to work being performed on any circuit boardinside the UPS the logic power must be removed in order toprotect the circuit "chips" from voltage spikes as the board isremoved from the unit. Whenever the logic power is to be de-energized the UPS must first be manually put on the maintenancesource of power (close CB-4) until maintenance is completed.When repowering the logic power (closing A27-CB1 and A27-Sl) itis possible to send a false "open» signal to CB-4 (prior to CB-3closing) thus causing a loss of power to the loads.Disconnecting a plug connector to the motor operator on CB-4 willprevent the breaker from inadvertently opening.
Descri tion o e
On 2/15/90, 2VBB-UPS1A was taken out of service byoperations, transferred to maintenance supply, in order for an I& C technician to perform corrective maintenance per WR N164138(EDC N2E10075). A printed circuit card, A13A1, required amodification per the EDC. In order to remove the circuit cardfrom the unit the logic power was de-energized.. When the repairwas completed the printed circuit board was reinserted into theunit and the operator re-energized the logic power. The
1
1
I
techni'cian noticed that a "trip» signal was showj.ng"mimic" display on the unit. The operator de-energized the logj.cpower and then re-energized it to see if the logic trip wouldreset but it did not- The logic power was again de-energized 'bythe operator and the A13A1 circuit card was re-seated into itsslot. The I & C technician then restored the logic power for theoperator. .When power was restored to the Logic circuits a falseopen signal was sent to the CB-4 motor operator which opened CB-'4causing a los's of power to the loads., The technician immediatelyrecognized that the breaker had opened, reached down, lifted themotor operator from CB-4 and reclosed the CB-4 breaker restoringpower to the loads. At this time the motor operator on CB-4 wasleft lifted off the breaker and once again the logic power wasde-energized. The printed circuit cards in the unit were allchecked to verify that they were all fully "seated" into theirslots (some may not have been) and the logic power was re-energized. When power was restored to the logic circuits thelogic trip signal was reset and the unit restarted normally. Themotor operator was reset onto breaker CB-4 and the loads weretransferred to UPS
power.'a
se of the Eve t:The loss of pow'er to the loads was caused by a number of
contributing factors:Because operators infrequently operate the UPS they arereluctant to do so. When the I & C technician offered,to coach the operator through startup and shutdown
of'heunit the operator was willing to accept it. (The I& C technician was a recognized expert in operating theUPS units). The operator manipulated the controls ofthe UPS, for the most part, under the direction of thetechnician.
2.) The operations procedure for these units (N2-OP-71) isvery descriptive but does not cover every evolution ofstartup and shutdown. It would not have been adequatefor this evolution.
3.) The connecting plug for the control wires for the motoroperator for CB-4 was not unplugged prior to turningthe logj.c power back on. If it had been unplugged theCB-4 breaker would not have inadvertently opened. Itis generally a practj.ce to unplug this prior to re-energizing logic power but had been missed in thisevent. (It should be noted that prior to fuel load thelogic on these type of units had been re-energized manytimes without removing the -plug to CB-4 without asiagle faj.lure.)
'
I
sso e
1.) Appropriate supervisors (Operations, I & C, SystemSupport) should inform their personnel that henceforthall UPS shutdowns and startups shall'e done byoperations personnel following the appropriateoperations procedure.
2.) Operations Procedure N2-OP-71 should be corrected toadequately cover all startup and shutdown of these UPSincluding a step to remove the connector plug for CB-4when re-energized the UPS logic circuits.
3.) Additional training should be provided for operationspersonnel on manipulating the UPS controls per the,operating procedure. As a minimum, the operationpersonnel should become familiar with the locations ofall controls on the UPS that are described in theoperations procedure. Zn addition, operationspersonnel should be provided "hands-on" training on anoperating UPS using N2-OP-71. This may require SystemEngineer support.
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i~lNTEANALCORRESPONDENCE
" FORM 112 2 A 0240 5M1-013 J>~ > ggc~yA~ VWaeARa I4 MOHAWK
TO M. Colomh
FROM '. B. Crandall i DISTRICT Nine Mile Point Unit 2
DATE 2/17/90 FILE CODE ~58287SVBJECT UP81A Event of 2/15/90
(see attached diagram) 2VBB-UPS1A is a 75 KVAUninterruptible Power Supply (UPS) that supplies, essential powerto some plant BOP Loads. There are four circuit breakers on theunit:
CB-1 provides AC input to the UPS.CB-2 provides DC input to the UPS.CB-3 connects the UPS output to the critical load.CB-4 connects the maintenance supply to the load.
When CB-4 is closed and CB-3 is open the UPS is bypassed to allowmaintenance to be performed on the UPS. CB-3 and CB-4 are moldedcase circuit breakers with motor operators attached. The motoroperators open or close the breakers as required by the controllogic circuits of the UPS. The CB-3 and CB-4 control circuitsare designed to ensure that power to the critical load is neverlost. The logic circuits in the UPS are powered by an internal20v DC power supply with battery back-up. A small circuitbreaker and toggle switch (A27-CB1 and A27-S1, respectfully)connect the internal logic'ower supply and battery to the logiccircuits. Prio'r to work being performed on any circuit hoardinside the UPS the logic power must he removed in order toprotect the circuit "chips" from voltage spikes as the board isremoved from the unit. Whenever the logic power is to be de-energized the UPS must first he manually put on the maintenancesource of power (close CB-4) until maintenance is completed.When repowering the logic power (closing A27-CB1 and A27-S1) itis possible to send a false "open" signal to CB-4 (prior to CB-3closing) thus causing a loss of power to the loads.Disconnecting a plug connector to the motor operator on CB-4 willprevent the breaker from inadvertently opening.
Descri t on o e t:On 2/15/90, 2VBB-UPS1A was taken out of service by
operations, transferred to maintenance supply, in order for an I& C technician to perform corrective maintenance per WR $ 164138(EDC $ 2E10075). A printed circuit card, A13A1, required amodification per the EDC. In order to remove the circuit cardfrom the unit the logic power was de-energized. When the repairwas completed the printed circuit board was reinserted into theunit and the operator re-energized the logic power. The
technician noticed that a "trip" signal was showj.ng on the"mimic" display on the unit. The operator de-energized the logicpower and then re-energized it to see if the logic trip wouldreset but it did not. The logic power was again de-energized bythe operator and the A13A1 circuit card was re-seated into jtsslot. The I & C technician then restored the logic power for theoperator. 'When power was restored to the logic circujts a falseopen signal was sent to the CB-4 motor operator which opened CB 4causing a loss of power to the loads. The technician immediatelyrecognized that the breaker had opened, reached down, lifted themotor operator from CB-4 and reclosed the CB-4 breaker restoringpower to the loads. At this time the motor operator on CB-4 wasleft lifted off the breaker and once again the logic power wasde-energized. The printed circuit cards in the unit were allchecked to verify that they were all fully "seated" into theirslots (some may not have been) and the logic power was re-energized. When power was restored to the logic circuits thelogic trip signal was reset and the unit restarted normally. Themotor operator was reset onto breaker CB-4 and the loads weretransferred to UPS power.*
Cause of the Eve t:The loss of power to the loads was caused. hy a number of
contributing factors:~ I
Because operators infrequently operate the UPS they arereluctant to do so. When the I & C technician offeredto coach the operator through startup and shutdown of"the unit the operator was willing to accept it. (The I& C technician was a recognized expert in operating theUPS units). The operator manipulated the controls ofthe UPS, for the most part, under the direction of thetechnician.
2.) The operations procedure for these units (N2-OP-71) isvery descriptive but does not cover every evolutj.on ofstartup and shutdown. It would not have been adequatefor this evolution.
3-) The connecting plug for the control wires for the motoroperator for CB-4 was not unplugged prior to turningthe logic power back on. If it had been unplugged theCB-4 breaker would not have inadvertently opened. 1tis generally a practice to unplug this prior to re-energizing logic power but had been missed in thisevent. (It should be noted that prior to fuel load thelogic on these type of units had been re-energized manytimes without removing the plug to CB-4 without asingle failure.)
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1.) Appropriate supervisors (Operations, I & C, SystemSupport) should inform their personnel that. henceforthall UPS shutdowns and startups shall'e done byoperations personnel following the appropriateoperations procedure.
2 ' Operations Procedure N2-OP-71 should be corrected toadequately cover all startup and shutdown of these UPSincluding a step to remove the connector plug for CB-4when re-energized the UPS logic circuits.
3 ' Additional training should be provided for operationspersonnel on manipulating the UPS controls per theoperating procedure. As a minimum, the operationpersonnel should become familiar with the locations ofall controls on the UPS that are described in theoperations procedure. In addition, operationspersonnel should be provided "hands-on" training on anoperating UPS using N2-OP-71. This may require SystemEngineer support.
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ou 9 solatio give C sureAdd ional formati~o
The high radiation signal that causes a Croup 9 isolation valveclosure originates from the Standby Gas Treatment radiation monitor2GTS-RU105. This radiation monitor is non-safety related. Thesignal from the monitor is transmitted to the safety relatedisolation valve contxol circuits through two divisional opticalisolators. Radiation monitor 2GTS-RU105 receives power from 2VBB-QPS1B and the non-safety xelated circuitry on the input side of theoptical isolators receives power from 2VBB-UPS1A. Class 1Edivisional power is on the outputs of the optical isolators.When 2VBB-UPS1B powex failed on August 3.3, 1991, radiation monitor2GTS-RU105 failed with a »high radiation" output signal. However,because power from 2VBB-UPS1A failed at. the same time, the opticalisolator inputs were not energized from the "high radiation" signaland a "valve close» signal was not sent to the Group 9 isolationvalves. The circuitry at the inputs of the optical isolators mustbe energized in ordex to pass a "valve close» signal through theisolators. The "high radiation» signal remained at the 2GTS-RU105output because the radiation monitor must be manually reset toremove the signal. The monitor was not reset until some time afterUPS power was restox'ed. When power from 2VBB-UPS1A was restored,the circuitry at. the optical isolator sensed the "high radiation"signal from 2GTS-RU105 and energized the optical isolator inputs.This transmitted a "valve close" signal through the opticalisolators and the Group 9 isolation valves closed.
The operation of the radiation monitorvalves as described above is consistentdes igni
Written by
Reviewed by
and the Croup 9 isolationwith equipment and system
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ou 9 solazio alve C sureAdd ional < formatio
The high radiation signal that, causes a Group 9 isolation valveclosure originates from the Standby Gas Treatment radiation monitor2GTS-RU105. This radiation monitor is non-safety related. Thesignal from the monitor is transmitted to the safety relatedisolation valve control circuits through two divisional opticalisolators. Radiation monitor 2GTS-RU105 receives power from 2VBB-UPS1B and the non-safety related circuitry on the input side of theoptical isolators receives power from 2VBB-UPS1A. Class 1Edivisional power is on the outputs of the optical isolators.
When 2VBB-UFS1B power failed on August 13, 1991, radiation monitor2GTS-RU105 failed with a "high radiation" output signal. However,because power from 2VBB-UPS1A failed at the same time, the opticalisolator inputs were not energized from the "high radiation" signaland a "valve close~~ signal was not sent to the Group 9 isolationvalves. The circuitry at the inputs of the optical isolators mustbe energized in order to pass a "valve close» signal through theisolators. The "high radiation" signal remained at the 2GTS-RU105output because the radiation monitor must be manually reset toremove the signal. The monitor was not reset until some time afterUPS power was restored. When power from 2VBB-UPS1A was restored,the circuitry at the optical isolator sensed the "high radiation»signal from 2GTS-RU105 and energized the optical isolator inputs.This transmitted a "valve close" signal through the opticalisolators and the Group 9 isolation valves closed.
The operation of the radiation monitorvalves as described above is consistent888lgni
Written by C'CwW
Reviewed by' ~i~e.u
and the Group 9 isolationwith equipment and system
