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ZXDU68 G020 (V5.0)
DC Power System
Quick User Guide
Contents
Document number / version :
SJ-20111202092253-001 / 2012-06-15 (R1.0)
ZTE CORPORATION
No. 55, Hi-tech Road South, ShenZhen, P.R.China
Postcode: 518057
Tel: +86-755-26771900
Fax: +86-755-26770801
URL: http://ensupport.zte.com.cn
E-mail: [email protected]
Related Documentation§ ZXDU CSU500 (SV1.01) Centralized Supervision Unit Parameter and Alarm
Setting
This document describes the parameters that need to be set on site and the alarm information.
Record modified parameter values and alarm attributes in the document for future use.
§ System Introduction -------------1/7
System Structure
Technical Specifications
Heat Circulation of the Communications Equipment
§ Equipment Installation -----------2/7
Warnings/Cautions
Removing/Installing the CSU and Rectifiers
Step 1 Installing the Cabinet
Step 2 Connecting Grounding Cables
Step 3 Connecting AC Input Cables
Step 4 Connecting DC Output Cables
Step 5 Installing Batteries
Step 6 Installing Battery Temperature Sensors
Step 7 Connecting Signal Cables
§ System Commissioning ----------5/7
Step 1 Performing Electrical Check
Step 2 Checking and Starting Rectifiers
Step 3 Starting CSU
Step 4 Setting Rectifier Address
Step 5 Setting Parameters and Attributes of Input/Output Relays
Step 6 Connecting Batteries to the System
Step 7 Checking Battery Temperature Sensors
Step 8 Connecting Loads to the System
§ System Maintenance ----------6/7
CSU Troubleshooting
Rectifier Troubleshooting
Replacing the SPD
Querying System Information/Real-Time Alarms/History Records
Querying Real-Time Information of Rectifiers
Instructions for Removing/Installing a Rectifier Online
Normal Shutdown
Emergency Shutdown
Startup
Manually Re-connecting LLVD1/BLVD2 Branches When the CSU Is Faulty
A
B
C
D
E
F
G
H
I
J
ZXDU68 G020 (V5.0) DC Power System
System Structure
ZTE Corporation Address: No. 55, Hi-tech Road South, ShenZhen, P.R.China Postcode: 518057 Website: http://ensupport.zte.com.cn Email: [email protected]
System Introduction 1/7
Component Description
AC input MCBs Connects AC input cables (L1/L2/L3)
MCB: QF1 (L1/L2/L3)
AC SPD Provides class C surge protection for AC distribution unit
DC SPD Provides surge protection for DC distribution unit
Battery MCB Connects battery pack with overload protection
MCB: QFB
BLVD2 MCBs Connects primary loads with overload protection
MCBs: QFB-1 to QFB-5
LLVD1 MCBs Connects secondary loads with overload protection
MCBs: QFL-1 to QFL-4
LLVD1 ON button If the CSU cannot automatically re-connects the disconnected branch(es), press this button to close the LLVD1 contactor to connect the LLVD1 branch(es) and activate the LLVD1 loads.
BLVD2 ON button If the CSU cannot automatically re-connects the disconnected branch(es), press this button to close the BLVD2 contactor to connect the BLVD2 branch(es) and activate the BLVD2 loads.
Communications equipment can be fit
into the reserved 4U space.
The air circulates as follows:
§ The cabinet inhales the circulation
air from the bottom.
§ The air goes through the
communications equipment space
to cool down the equipment.
§ The cabinet exhales the air by fans
at the top.
Item Specification
AC input AC input mode: Three-phase five-wire (L1/L2/L3/N/PE) power supply
Rated AC input voltage: 220 V - 240 V (line voltage)
Input line voltage range: 85 V - 295 V
Frequency: 50 Hz/60 Hz
Rectifier ZXD3000 (V5.0), 3 set (maximum)
Maximum output power: 3 kW (when the input voltage is 176 V to 295 V and the operating temperature is -40 ℃ to +55 ℃)
DC output Rated output voltage: -53.5 V
Output voltage range: -42 V to -58 V
Rated output power: 9 kW (-48 V to -57.6 V)
Operating temperature 0 ℃ to +35 ℃ (+15 ℃ to +25 ℃, recommended)
Storage temperature -40 ℃ to +70 ℃
Relative humidity 10% to 90% (non-condensing); 40% to 60% recommended
Air pressure 80 kPa to 106 kPa
Altitude 0 - 2000 m: 100% output power
2000 m - 3000 m: The power derating percentage is 1% when the altitude increases by 100 m
System efficiency ≥ 93.5% (30% rated power)
≥ 95.5% (50% rated power)
≥ 95.5% (100% rated power)
Mean Time Between Failures (MTBF)
≥ 3.2 × 105 h
Protection degree IP44
Cabinet dimensions 850 mm × 650 mm × 500 mm (H×W×D, without consideration of thermoelectric coolor)
Cabinet weight Approximately 50 kg (excluding batteries, rectifiers and CSU)
Battery rack net 219 mm × 352 mm × 370 mm (H×W×D) for each level
Battery weight Approximately 21 kg per battery
Technical Specifications
Heat Circulation of the
Communications EquipmentDescriptions of the components of the power distribution unit are as follows:
Fans
Top
shield
Rectifiers
Base
CSU
Battery rackThermoelectric cooler
Battery MCBReserved 4U vertical space
(with 19 inch width)
PE boltsCabling holes
§ SIU: Signal Interface Unit
§ SIB: Signal Interface Board
§ CSU: Centralized Supervision Unit
§ TEC: Thermoelectric Cooler
AC input MCB AC SPD
DC SPD
BLVD2
MCBs
LLVD1
MCBs
SIU
Working ground busbar
LLVD1 ON & BLVD2 ON buttons
PE terminal
The rectifiers in the figure above refers to the ZXD3000 (V5.0) rectifiers.
L1L2L3
N PE
N terminal
ZXDU68 G020 (V5.0) DC Power System
ZTE Corporation Address: No. 55, Hi-tech Road South, ShenZhen, P.R.China Postcode: 518057 Website: http://ensupport.zte.com.cn Email: [email protected]
Removing/Installing the CSU and Rectifiers
Removing the Rectifer Installing the Rectifer
Loosen the
captive screws. 2
1 Installing the Cabinet
Equipment Installation 2/7
Cabinet dimensions (without consideration of TEC): 850 mm × 650 mm × 500 mm (H × W × D)
Keep
vertical
Keep the cabinet vertical. The vertical
deviation should satisfy the requirement
specified in the engineering acceptance
document of ZTE Corporation.
1
No stacking
Long bolt
Pole (Diameter 80 mm to 120 mm)
Pole-installing assembly
(optional)
Use long bolts to secure the pole-installing assembly to the pole.2
b Tighten screws.
Pole-installing assembly
(secured in the pole)
a Hang the cabinet.
1
(Rear view)
Make sure the indicators are at the BOTTOM side of the rectifiers
Be aware of jamming!
Tighten the captive screws.
2
Locked
It is strongly recommended that the users should set the AC input
circuit breakers to OFF position prior to removing the rectifiers.
Remove the CSU and rectifers.1 3 Hang the cabinet onto the pole-mounting assembly, and tighten screws.
Tighten the captive screws.
Removing the CSU Installing the CSU
Loosen the captive screws.
1 2
Be aware of jamming!
2
Locked
1
Caution
≥800 mm
85
0 m
m
500 mm 650 mm
115 mm
§ Remove watches, bracelets, rings or other conductive objects before the operation. Wear special gloves for protection against electrostatic hazards. Failure to comply can result in damage to equipment.
§ Never set heavy objects on top of the cabinet. Failure to comply can result in damage to equipment.
§ Always use insulated tools when making electrical connections and always ensure that all connection terminals and unnecessarily exposed metal parts are fully insulated. Failure to comply can result in damage to equipment.
§ The system has high leakage current, thus it must be properly grounded before power-on. The grounding cable should be connected to the nearest grounding terminal, and the cable length cannot be greater than 30 m.
§ Battery requirements:
· Batteries used in the system should be of the same type. Old and new batteries must not be used together.
· Battery packs should not be short-circuited in any way during the operation.
§ Cable requirements:
· Cable diameter: The diameter of a cable should match the load capacity.
· Cable color: When using cables in non-standard colors, use black cables and mark them using heat-shrinkable tubing or insulated tape in corresponding colors to avoid errors. If local regulations have different requirements for cable colors, always follow the local regulations. Failure to comply can result in damage to equipment.
· Cable bending radius: At a corner of a cabling route, the turning radius should be 10 times equal to or greater than the cable diameter to avoid short circuits due to the cable tube damage caused by the turning radius being too small.
Warnings/Cautions
OFF OFF
LLVD1 MCBs(QFL-1 – QFL-4)
BLVD2 MCBs(QFB-1 – QFB-5)
ZTE Corporation Address: No. 55, Hi-tech Road South, ShenZhen, P.R.China Postcode: 518057 Website: http://ensupport.zte.com.cn Email: [email protected]
ZXDU68 G020 (V5.0) DC Power System
3 Connecting AC Input Cables
The system supports the following AC input mode:
One three-phase five-wire (L1/L2/L3/N/PE) power supply.
4 Connecting DC Output Cables 5 Installing Batteries
Equipment Installation 3/7
Choose Proper DC Output Branches.
§ Choose circuit breakers of proper capacity.
The load capacity connected to each DC output branch cannot exceed the circuit
breaker capacity. Certain redundancy should be reserved to prevent interruption of
power supply to the loads due to the circuit breaker trip.
For example, if the capacity of a circuit breaker is 32 A, it can connect a load with the
peak capacity of no more than 25 A.
§ Divide loads into primary loads and secondary loads.
If mains fails, the batteries provide power supply. During the battery power supply,
the primary loads connected to the BLVD2 branch can work longer than the
secondary loads.
Disconnection Mode Load Configuration
LLVD1 Secondary loads 4 MCBs: 2*63 A, 2*40 A
BLVD2 Primary loads 5 MCBs: 40 A, 2*16 A, 2*5 A
(Remarks: Capacity of DC output circuit breakers is subject to the contract. Information in the table
above is for reference only.)
The system provides one battery circuit breaker.
One battery pack (two layers) can be installed inside the ZXDU68 G020 cabinet.
Battery Pack (in CSU) Circuit breaker
1 QFB
Connect DC Output Cables.
Battery space for each layer (H × W × D): 219 mm × 352 mm × 370 mm
To be continued
+-L
+
QFB
100 ABattery
GND
Primary load
DC load
Secondary load
DC load
- 48V (blue)
GND (black)
GND (black)
- 48V (blue)
OFF
2 Connecting Grounding Cables
Grounding cables of the system should be connected to the nearest grounding terminal, and the cable length cannot be greater than 30 m.
Caution
PE bolt
GND
Grounding busbar on site
GND (black)
PE (yellow-green)
The system uses the bottom cabling mode.
Caution
Battery Placement Requirements
§ Enough space should be reserved around each battery. Failure to
comply can result in short-circuit hazards.
§ If the spacing requirement (no less than 5 mm as shown) is satisfied,
the batteries should be placed on the right rear sides in the cabinet to
avoid short circuit caused by friction of the door lock.
§ Ensure that all circuit breakers are set to OFF position and that no power is
applied to the system prior to making any electrical connections. Failure to comply can result in death, personal injury or damage to equipment.
§ The live and neutral cables must not be reversed!
Caution:
AC power distribution box
AC output
circuit breaker
3P
OFF PE N L1 L2 L3
PE
1
2
L1 L2 L3
N
L1 (yellow)
L2 (green)
L3 (red)
PE
(yellow-green)
N (blue)
Stopping bar
When installing batteries, install the batteries on the right first. Refer to the steps on this section for detailed instructions.
L ≥ 5 mm
++
(Front view)
H
LL L
Near right rear corner
(Top view)Front
L
Cell
-
+
Cell
-
+
H ≥ 10 mm
ZXDU68 G020 (V5.0) DC Power System
ZTE Corporation Address: No. 55, Hi-tech Road South, ShenZhen, P.R.China Postcode: 518057 Website: http://ensupport.zte.com.cn Email: [email protected]
Equipment Installation 4/7
5 Installing Batteries
§ Never perform operations with power applied! Set the battery input
circuit breaker to OFF position before the cable connection.
§ Do not reverse the positive and negative cables!
§ See the figure below for cable routing. Battery cables should be routed
backwards, not forwards.
Caution
Route the cable backwards.
Install the cover.
Do not route the
cable forwards!
Caution
3 Install the battery stopping bar onto the battery rack.
Remove the stopping bars of the battery rack.1
§ Connect the free side of Cable A to BATT1- terminal.
§ Connect one side of Cable B to BATT1+ terminal and put Cell 1 on the right
side of the upper layer.
§ Connect the other side of Cable B to BATT2- terminal and put Cell 2 on the
left side of the upper layer.
§ Connect the free side of Cable C to BATT4+ terminal.
§ Connect one side of Cable D to BATT4- terminal and put Cell 4 on the right
side of the lower layer.
§ Connect one side of Cable E to BATT3- terminal and put Cell 3 on the left
side of the lower layer.
§ Connect the other side of Cable E to BATT2+ terminal.
§ Connect the other side of Cable D to BATT3+ terminal.
2 Connect cables between batteries, circuit breaker and GND busbar by the
following steps.
Before the equipment delivery, one end of the battery temperature sensor is
connected with a dual-pin plug.
Temperature sensorDual-pin plug
6 Installing Battery Temperature Sensors
Insert the dual-pin plug into
the X6 interface on the SIB.3
Firmly paste the sensor onto the top
of Cell 4.2
Remove the paper cover of the
battery temperature sensor.1
-
+
-
+
Upper layer
Cell 3
-
+
-
+
Lower layer
Top View
Front
Cell 4
Cell 2 Cell 1
Preparation: Clean the top of
the Cell 4.
§ Do not pasting the sensor on the
hydrogen exhaust of the cell!
§ When pulling out the SIU, move
slowly to avoid disconnecting
cables connected to the SIB.
Caution
7 Connecting Signal CablesThe signal interfaces are located on the front panel of the Centralized Supervision Unit
(CSU) and in the Signal Interface Unit (SIU). Based on the actual requirements for
supervision and networking, connect signal cables to corresponding interfaces.
X1 (To BACK-X6)
X21 (To EIB-X11)
X12
RS
485(
inde
pent
)
RS
485A
0
RS
485B
0
1 2
X11
RS
232 1
9
5
6
X22
RS
232(
mul
tiple
)R
XD
TX
D
GN
D_2
3 2 1
X14
Out
put r
elay
1,2
X16
Out
put r
elay
5,6
X17
Out
put r
elay
7,8
RO8-NC
RO8-NORO8-COM
RO7-NC
RO7-COMRO7-NO
X15
Out
put r
elay
3,4
61
23
45
RO2-NC
RO2-NORO1-NC
RO1-NO
61
23
45
RO1-COM
RO2-COM
RO4-NC
RO4-NORO3-NC
RO3-NO
61
23
45
RO3-COM
RO4-COM
RO6-NC
RO6-NORO5-NC
RO5-NO
61
23
45
RO5-COM
RO6-COM
ROW-COM
X3
Inpu
t rel
ay 1
,2
INRLY1INRLY2
48VP
X4
Inpu
t rel
ay 3
, 4X
5D
oor
alar
m
48VP
DOOR
X18
CS
U fa
ult
ROW-NC
ROW-NO
12
INRLY3
INRLY4
48VP
32
13
21
32
1
SIBThe SIB provides input & output
relays, communication interfaces,
battery temperature sampling
interfaces, and environmental
detection interfaces.
X13
RS
485(
mul
tiple
x)
RS
485A
1
RS
485B
1
1 2
+5V
VW
AGND
WATER
X6
Bat
t1 te
mp
+5V
TB_1
X7
Bat
t2 te
mp
X8
Bat
t3 te
mp
X9
Bat
t4 te
mp
X10
Env
. tem
p
TE
12
34
X2
Flo
od a
larm
12
+5V
TB_212
+5V
TB_312
+5V
TB_412
12 +5V
SIBSIU
Interface
designation
The RJ45 Ethernet interface rate is 10M/
100M adaptive Ethernet. The interface
supports multiple monitoring networking
modes via Telnet, HTTP, FTP and SNMP.
CSU
RJ45 Ethernet
interface
X11 and X13 cannot be used at the same time.
When pulling out the SIU, move slowly
to avoid disconnecting cables connected
to the SIB.
Caution
Output Relay Code in the CSU Alarm Designation
X14-R01 A1 Refer to the "Alarm Information" section in the
ZXDU CSU500 (SV1.01) Centralized Supervision
Unit User Guide for output relays for the alarms.
Users can set an output relay for an alarm in the
CSU.
X14-R02 A2
X15-R03 A3
X15-R04 A4
X16-R05 A5
X16-R06 A6
X17-R07 - Controls a diesel generator
X17-R08 - Controls emergency lighting
X18-R00 - Provides the CSU fault signal
Input Relay Name in the CSU Attributes
X3-INRLY1 In-Relay -1# Default state: close
Default level: mask
Default alarm name: In-Relay
Users can set attributes for an input relay in the
CSU.
X3-INRLY2 In-Relay -2#
X4-INRLY3 In-Relay -3#
X4-INRLY4 In-Relay -4#
SIB
X6
SIB
GND
Battery
connecting cable
GND
A
Cell 2
-
+
Cell 1
-
+
Upper layer
Cell 3
-
+
Cell 4
-
+
Lower layer
Top View
Front
B
C
D
EBATT MCB
BATT MCB
BATT- (blue)
BA
TT
+ (red)
OFF
ZXDU68 G020 (V5.0) DC Power System
ZTE Corporation Address: No. 55, Hi-tech Road South, ShenZhen, P.R.China Postcode: 518057 Website: http://ensupport.zte.com.cn Email: [email protected]
System Commissioning 5/7
1 Performing Electrical Check
1.1 Checking AC Input for Short Circuit
1. Ensure that the AC output circuit breaker in the AC power distribution box and the AC
input circuit breaker in the ZXDU68 G020 cabinet are set to OFF position.
2. Turn the knob of the multimeter to the buzzer scale to check for short circuit.
Check items: L1-L2, L1-L3, L2-L3, L1-N, L2-N, L3-N, N-PE
Check Criterion: An alarm sound given by the multimeter indicates that there is a
short circuit! Locate any short circuit and eliminate it before proceeding to the next step.
Example:
Check for short circuit between
L1 and N.
Ensure that all power is removed
prior to performing the check.
Failure to comply can result in
damage to the multimeter.
Warning:L1 L2 L3 NN
OFF
Turn the knob to the buzzer scale
PE
Electrical check must be performed before system commissioning, to avoid
equipment damage caused by cable connection errors.Caution
1.2 Checking DC Output for Short Circuit
Steps
1. Set the AC output circuit breaker (in the AC power distribution box) to ON position.
2. Check rectifiers individually.
(1) Install rectifier 1 into the slot SMR 1.
(2) Set the AC input circuit breaker (in the ZXDU68 G020 cabinet) to ON position.
(3) Observe the rectifier indicators to ensure that the rectifier is operating properly.
(4) Set the AC input circuit breaker (in the ZXDU68 G020 cabinet) to OFF position.
(5) Pull the rectifier outward for about 30 mm to shut down the rectifier.
(6) Repeat the steps (1) - (5) to check the rectifiers (SMR 2 and SMR 3) and ensure
that the rectifiers are operating properly.
3. Push the rectifiers into the corresponding slots until well seated.
4. Set the AC input circuit breaker (in the ZXDU68 G020 cabinet) to ON position to power
all the rectifiers.Starting CSU3
Steps
1. Install the CSU.
2 Make sure that the CSU is operating normally by referring to “Status Indication”.
Status Indication:
After the CSU self-check and initialization, the LCD displays
the main menu screen. The DC output branches and battery
branches are open, so the CSU activates the following
alarms:
§ LLVD1 Loop Brk.
§ BLVD Loop Brk.
§ Batt.Loop Brk.
Alarm occurrence
Main Menu Screen
Real Msg
Operating normally Breaking down
Power Lit Lit Lit
Running Flashing -
Alarm Not lit - Flashing
Operating StatusIndicator
Lit/Not lit
Esc EntPower
Running
Alarm
Be aware of jamming!
Checking and Starting Rectifiers2
Check Criterion:
A rectifier is operating properly when its power
and running indicators are lit and its alarm and
fault indicators are not lit.
Remove the film (if any) from the
rectifier air inlet for heat dissipation!
Operating with
stable voltageCurrent
limitSleeping Communication
interruptionAlarm
occurrence
Fault
occurrence
Power Lit Lit Flashing Lit Lit Lit
Running Lit Flashing Not lit - - Not lit
Alarm - - - Flashing Lit -
Fault Not lit Not lit Not lit - - Lit
Operating Status
Indicator
Caution:
Relationship Between AC Input Voltage and Output Power
Prerequisite: the output voltage is within the range of 48 V - 59.5 V.
Max output power: 3000 W
Output voltage: 53.5 V (changes as the charge voltage in the CSU changes)
AC Input Voltage Output Power
≤ (85 ± 5) V 0 %
(85 V ± 5 V) to 110 V 40% to 55%
110 V to 176 V 55% to 100%
176 V to (295 V ± 5 V) 100%
>295V ± 5 V 0%
Output Power = Percentage of the Maximum Power
Query button (QUY)
Power
Running
Alarm
Fault
Slot Configuration
Be aware of jamming!
The “-” mark in the table means that the status of the corresponding indicator is not fixed.
SM
R 1
SM
R 2
SM
R 3
1.4 Checking Terminal Voltage of the Battery Pack
1. Turn the knob of the multimeter to the DC voltage scale.
2. Measure the terminal voltage of the battery pack and record the value in the table below.
A negative measured value indicates that the positive and negative battery cables are reversed. Re-connect the cables!
Check Criterion:1. The voltage of the battery pack should be
a positive value.
2. The voltage of the battery pack should not be lower than 43.2 V (the value is for reference only). If the voltage does not meet the requirement, verify correct
connection between batteries.
Touching Point Terminal Voltage
Red probe: GND busbar
Black probe: BATT- circuit breaker
Turn the knob to the DC
voltage scale.
Red probeBlack probe
BATT MCB
GNDWarning:
1.3 Checking AC Input Voltage
1. Set the AC output circuit breaker (in the AC power distribution box) to ON position.
Keep the AC input circuit breaker ( in the ZXDU68 G020 cabinet) in OFF position.
2. Turn the knob of the multimeter to the AC voltage scale and measure the AC voltage.
Check items: L1-N, L2-N, L3-N, N-PE
Check Criterion: 1. The N-PE voltage should be lower than 5 V. If the voltage does not meet the requirement,
it is recommended to improve AC input power supply.
2. The phase voltage should be within the range of 85 V - 295 V. If the voltage does not meet the requirement, it is recommended to start a diesel generator to power the ZXDU68
G020 system.
Check Criterion: An alarm sound given by the multimeter indicates that there is a
short circuit! Locate any short circuit and eliminate it before proceeding to the next step.
GND
LLVD1 MCBs
BLVD2 MCBs
The “-” mark in the table means that the status of the corresponding indicator is not fixed.
1. Turn the knob of the multimeter to the buzzer scale.
2. According to the figure above, choose one circuit breaker of LLVD1/BLVD2 to perform
the short circuit check.
ZTE Corporation Address: No. 55, Hi-tech Road South, ShenZhen, P.R.China Postcode: 518057 Website: http://ensupport.zte.com.cn Email: [email protected]
System Commissioning 6/7
CSU TroubleshootingA
Rectifier TroubleshootingBSymptom Cause and Solution
Rectifier power-on
fails, and the power
indicator of the
rectifier is not lit
1. Ensure that the AC input circuit breaker is set to ON position.
2. Ensure that the AC input voltage is within the acceptable range.
3. Re-install the rectifier or install it in another slot.
4. If the symptom persists, contact maintenance personnel to troubleshoot the rectifier.
5. Install a new rectifier in the original slot and set the rectifier address.
The alarm indicator
is lit
The probable cause might be that the AC input voltage is too high or
too low, the temperature is too high, the load-sharing quality is poor,
or the addresses conflict. The alarm might not be caused by the
rectifier but by surrounding conditions or equipment.
Solution:
1. Check alarm information through the CSU to learn the cause.
2. Take appropriate measures according to the cause.
The fault indicator is
lit
The probable cause might be that the output voltage/current is too
high, the rectifier fan is faulty, or the output fuse has blown.
Solution:
1. Re-install the rectifier.
2. If the symptom persists, contact maintenance personnel to troubleshoot the rectifier.
3. Install a new rectifier in the original slot and set the rectifier address.
Application Scenario:
A red color window on the surge protection device (SPD) indicates that the SPD is
broken and should be replaced promptly.
Steps:
1. Grasp the damaged SPD and use force to
remove the SPD
2. Install a new SPD in position.
Status
window
(The image is for
reference only)SPD: Surge Protection Device
C Replacing the SPD
Symptom Cause and Solution
CSU power-on fails,
and the power
indicator of the CSU
is not lit
1. Re-install the CSU to restart it.
2. The positive and negative battery cables are reversely connected. Reconnect the cables.
3. Ensure that the battery circuit breakers are set to ON position.
Erratic LCD display 1. Re-install the CSU to restart it.
2. If the symptom persists, remove the CSU and contact maintenance personnel for troubleshooting.
3. Install a backup CSU and properly configure the new CSU.
Dropped connection
to the background
monitor
1. Ensure that the communication cable (serial port cable or network cable) is firmly connected to the correct port.
2. Ensure that the CSU is configured correctly according to the networking requirement.
3. If the symptom persists, remove the CSU and contact maintenance personnel for troubleshooting.
4. Install a backup CSU and properly configure the new CSU.
Note: The communication parameters include the Port Baudrate,
Remote IP, Remote Port, and Device Addr. For specific parameter
values, consult the network administrator.
CSU crash 1. Re-install the CSU to restart the CSU.
2. If the symptom persists, remove the CSU and contact maintenance personnel for troubleshooting.
3. Install a backup CSU and properly configure the new CSU.
The CSU activates
an alarm
Query the real-time alarm information and take appropriate actions.
System Maintenance ZXDU68 G020 (V5.0) DC Power System
Requirements for Setting the Address of a Rectifier
§ The default value is “1”. When a rectifier is installed in the slot SMR 2, change its
address to “2”, likewise the other rectifiers.
§ When rectifiers are not installed according to the slot sequence, re-allocate addresses
for these rectifiers. For example, when slots SMR 1 and SMR 3 are installed with
rectifiers while the slot SMR 2 is not, to avoid alarm errors, set the addresses of the
rectifiers in slots SMR1 and SMR3 to “1” and “2”.
Steps:
1. Press the QUY button of a rectifier and hold for five seconds to enter the main menu screen of the rectifier.
2. Set the address of the rectifier. For the operation procedure, see the image below.
Setting Rectifier Address4
SMR- 1#
Real Msg
Real Alm.
Para. Set
Ctrl.
Version
Press Esc to cancel
modification during
the operation.
Press ▼ to select Para.Set.
Ent
Initial password: 0000
Ent
Save
Password:
0000
Edit
SMR Addr.-1# 02
MAX: 40MIN: 1
§ Press ◄ or ► to move the cursor.
§ Press ▲ or ▼ to modify the value.
SMR- 2#
Real Msg
Real Alm.
Para. Set
Ctrl.
Version
Ent
Initial address of the rectifier
New address of the rectifier
1
2
3
Edit
Steps:
1. Set the float charge voltage as the terminal voltage of the battery pack.
§ Menu path: [Para.Set > Batt.Para. > Float Voltage]
§ The difference between float charge voltage and the terminal voltage of the battery
pack should be within the range of -0.1 V to 0.1 V.
2. Set the circuit breaker of the battery pack to ON position to connect the pack to the
system.
3. Reset the float charge voltage to the original value.
6 Connecting Batteries to the System
Steps:
1. Ensure that power switches of the load equipment are set to OFF position.
2. Set the DC output circuit breaker (LLVD1/BLVD2) connected to the load equipment
to ON position.
3. Use a multimeter to check DC power supply for one of the loads.
§ Red probe (+): Touching the DC Input (+) connection terminal of the load
§ Black probe (-): Touching the DC Input (-48 V) connection terminal of the load
4. Verify that the multimeter indicates a positive value within the range of 42 V to 58 V.
5. After the test has passed, set power switch of the load equipment to ON position.
_+
DC INPUT
DC LoadTurn the knob to the
DC voltage scale.
Black probe
Red probe
A negative measured value indicates that the positive and negative DC output
cables are reversed. Reconnect the DC output cables to the correct terminals.
Warning:
7 Checking Battery Temperature
Sensors
Check the battery temperature in the CSU to ensure that the battery temperature sensors
are properly installed.
When a valid battery temperature is not available on the LCD, check whether the battery
temperature sensor is faulty and make sure that the temperature sensor is properly
installed. Without a valid battery temperature, the alarms and functions related to battery
temperature are deactivated.
Querying Battery Information
Ent
Real Msg. Load
Power Source ACVolt. 56.4 VCurr. 99.2 A
Select Real Msg.
Ent
Select CSU Msg.
CSU Msg.
SMR Msg.
BMU Msg.
Real Msg.
Battery-1# 1/2
Volt. 54.3 VCurr. - 49.5ATemp. 26°C
Battery-2# 1/2
Volt. 54.3 VCurr. - 49.5ATemp. 26°C
“Invalid” indicates that the battery temperature
sensor is faulty or not properly installed.
§ Refer to the guide in ZXDU CSU500 (SV1.01) Centralized Supervision Unit Parameters and Alarm Setting to perform the following operations in the CSU.
§ Record the modified values in the manual for future use.
Steps:
1. Set system parameter, battery parameters and communication parameters.
When the system is used for the first time, the system and battery parameters must be
set properly according to the actual configuration on site.
2. (Optional) Set output relays and levels for alarms.
Users can set the output relay and level for each alarm and record the setting in the
“Alarm Information”.
3. (Optional) Set attributes for input relays.
Users can set the alarm name and alarm state for each input relay. The default alarm
state of each input relay is “Close”.
5 Setting Parameters and
Attributes of Input/Output Relays 8 Connecting Loads to the System
ZXDU68 G020 (V5.0) DC Power System
ZTE Corporation Address: No. 55, Hi-tech Road South, ShenZhen, P.R.China Postcode: 518057 Website: http://ensupport.zte.com.cn Email: [email protected]
7/7System Maintenance
Querying Real-Time Information of
RectifiersEOverview of Querying Real-Time Information of Rectifiers
§ To query real-time information of multiple rectifiers, select [ Real Msg. > SMR
Msg.]. Refer to the “Querying System Information/Real-Time Alarms/History Records”
section for the operation procedure.
§ To query real-time information of a specified rectifier, follow the instructions below.
Querying Real-Time Information of a Specified Rectifier
1
Press the QUY button and hold for five seconds to enter
the main menu screen of the rectifier.
2
Querying System Information/Real-
Time Alarms/History RecordsDRefer to ZXDU CSU500 (SV1.01) Centralized Supervision Unit Parameters and Alarm
Setting for a description of the screens. Users can query the following data in the CSU:
§ System information: Select [ Real Msg. > CSU Msg.]. Refer to the “System
Information” section for further details about the screens.
§ Real-time alarms: Select [ Real Alm.]. Refer to the “Alarm Information” section
for further details about the screens.
§ History records: Select [ His.Record > …]. Refer to the “History Records”
section for further details about the screens.
Ent
Real Msg. Load
Power Source ACVolt. 56.4 VCurr. 99.2 A
CSU screen 1
Select Real Msg.
Ent
Select CSU Msg.
CSU Msg.
SMR Msg.
BMU Msg.
Real Msg.
CSU1/2
Batt.Mode Equal Mng.Batt.Chg.Dura. 31 MinWork Mode Auto NonSave Mode
CSU2/2
Batt.Total Curr. -99.0 ASet Volt. 56.4 VSet Curr.Limit 63.5 A
Example: Querying System Information
There are two pages and this is the first page.
Press ▲ or ▼ to turn pages.
CSU screen 2
The two icons indicate that users can press ► or ◄ to query other data.
Load screen
§ Press ► or ◄ to query
other data.
§ Press Esc to return.
Main menu screen
(Select Real Msg.)
SMR-1#
Real Msg.
Real Alm.
Para.Set
Ctrl.
Ent
SMR-1#
Out Volt. 56.4 VOut Curr. 3.8 AInternal Temp. 25 °C
§ Press ► or ◄ to query
other data.
§ Press Esc to return.
Follow the instructions below when removing or installing a rectifier:
§ Before installing or removing a rectifier, close its main information screen first
(press ESC). The rectifier whose main menu screen is being displayed cannot
compete with the other rectifiers for the communication address.
§ After removing a rectifier from the cabinet, manually enable the CSU to count
operating rectifiers. Failure to comply can result in the rectifier communication
failure. Operate menu [ Ctrl. → SMR Ctrl. → CAN Dev.Stat. ], following an
example shown below.
Instructions for Removing/Installing
a Rectifier OnlineF
Steps:
1. Set the AC output circuit breaker (in the AC power distribution box) to OFF
position to remove power from the system.
2. Set the battery circuit breaker to OFF position disconnect the battery pack.
The emergency shutdown should only be performed during an emergency.
Failure to comply can result in loss of traffic or damage to equipment.
Caution
Prerequisite:
Prior to startup, ensure that the system has been properly installed and
configured and all required tests has passed.
Steps:
1. Set the AC output circuit breaker (in the AC power distribution box) to ON
position to power the system.
2. Set the AC input circuit breaker of the ZXDU68 G020 system to ON position.
3. Wait for the rectifiers and CSU to start up automatically.
4. Set the battery circuit breaker to ON position.
5. Set the DC output circuit breakers to ON position to power the DC loads.
High current leakage exists during the system operation. The system must be
well grounded before power-on. Failure to comply can result in damage to
equipment or operation failure.
Caution
Ent Ent
Ctrl. Edit
Password:
0000
Initial password: 0000
Ctrl.
Batt.ManageSMR Ctrl. Save Ctrl.Alm.Ctrl.Dev.Stat.
Ent
Message
Succeed!
Press ▼ to select
Dev.Stat.
: to return to the
upper-level interface
Esc
SMR-1#
CAN Dev.Stat.
RS485 Dev.Stat.Ent
Normal ShutdownG
Emergency ShutdownH
StartupI
Steps:
1. To ensure that the system is free of loads, remove power from all loads or
switch the loads to another power supply system.
2. Set the DC output circuit breakers to OFF position.
3. Set the battery circuit breaker to OFF position.
4. Set the AC input circuit breaker of the ZXDU68 G020 system to OFF position.
5. Set the AC output circuit breaker (in the AC power distribution box) to OFF
position to remove power from the system.
The system shutdown will cause power supply interruption to the connected
loads. Do not shut down the system without permission. Failure to comply
can result in loss of traffic or damage to equipment.
Caution
JApplication Scenario:
When the system has disconnected the LLVD1 or BLVD2 branches, but the CSU is
faulty, the CSU cannot automatically re-connects the disconnected branch(es) after the
mains recover and the rectifiers output DC power. In this case, perform the following
steps to manually re-connect the disconnected branch(es).
Manually Re-connecting LLVD1/BLVD2
Branches When the CSU Is Faulty
Steps:
1. Remove the front panel of the power distribution unit and locate the LLVD1 ON button
and the BLVD2 ON button.
2. Press the LLVD1 ON button to connect the LLVD1 branch to the system and activate
the LLVD1 loads (secondary loads).
3. Calculate the number of rectifiers needed to provide sufficient power for the load and
the battery charge using the following calculation formula. (Note: Verify that the
numbers of operating rectifiers for three phases are equal to each other if possible.)
4. Pull the unnecessary rectifiers 30 mm out of the cabinet to avoid high charge current to
the batteries (because there is no CSU that can limit the output current of the rectifiers).
5. Press the BLVD2 ON button to connect the battery branch to the system and activate
the BLVD2 loads (primary loads).
6. When the CSU operates properly, activate the rectifiers that were deactivated in Step 4.
PB (power required for the battery charging) =
nominal voltage of the battery pack × rated battery charging current
For example, PB = 48 V × 0.15C10
PL (load power): marked on the nameplate of the load
Maximum output power of a single rectifier: 3000 W
Number of needed
rectifiers=
PB +PL
Maximum output power of a single rectifier+ 1
LLVD1 ON BLVD2 ON
If the CSU is operating properly,
the CSU can accordingly
disconnect the branch(es) that is
(are) manually connected through
the steps below.