ManualEN
Insulation monitoring device with residual current monitoring (isoPV1685PFR only)for unearthed DC systems for photovoltaic systems up to 1500 V isoPV1685: software version D409 v2.0xisoPV1685P : software version D525 v2.0xisoPV1685PFR: software version D366 v1.0x
isoPV1685-1685PFR_D00007_02_M_XXEN/10.2016
isoPV1685isoPV1685PisoPV1685PFR
Bender GmbH & Co. KGP.O.Box 1161 • 35301 Grünberg • GermanyLondorfer Straße 65 • 35305 Grünberg • GermanyTel.: +49 6401 807-0 • Fax: +49 6401 807-259E-mail: [email protected] • www.bender.de
© Bender GmbH & Co. KGAll rights reserved.
Reprinting only with permissionof the publisher.
Subject to change!
Photos: Bender archives and bendersystembau archives.
Table of Contents
1. Important information ........................................................................................... 7
1.1 Technical support .................................................................................................................... 8
1.1.1 First level support .................................................................................................................... 8
1.1.2 Repair service ............................................................................................................................ 8
1.1.3 Field service ................................................................................................................................ 8
1.2 Training courses ....................................................................................................................... 9
1.3 Delivery conditions ................................................................................................................. 9
1.4 Storage ......................................................................................................................................... 9
1.5 Disposal ....................................................................................................................................... 9
2. Safety instructions ............................................................................................... 11
2.1 General safety instructions ................................................................................................ 11
2.2 Work activities on electrical installations ..................................................................... 11
2.3 Device-specific safety instructions ................................................................................. 12
2.4 Address setting and termination .................................................................................... 13
2.5 Intended use ........................................................................................................................... 13
3. Function ................................................................................................................. 15
3.1 Device features isoPV1685, isoPV1685P and isoPV1685PFR ................................. 15
3.2 Product description .............................................................................................................. 15
3.3 Description of function ....................................................................................................... 16
3.3.1 Insulation monitoring ......................................................................................................... 17
3.3.2 Insulation fault location (isoPV1685P(FR)) ................................................................... 17
3.3.3 Residual current monitoring (isoPV1685PFR) ............................................................. 18
3.3.4 Self test ..................................................................................................................................... 18
3.3.4.1 Self test after connection to the supply voltage ................................................. 18
3.3.4.2 Automatic self test ......................................................................................................... 18
3.3.4.3 Manual self test ............................................................................................................... 19
3.3.5 Assignment of the alarm relays K1, K2, K3 ................................................................... 19
3.3.6 Standby mode ........................................................................................................................ 19
3.3.7 Measured value transmission to the control inputs of the inverter ................... 20
3.3.8 History memory ..................................................................................................................... 20
3isoPV1685-1685PFR_D00007_02_M_XXEN/10.2016
Table of Contents
4. Device overview ................................................................................................... 21
4.1 Dimensions .............................................................................................................................. 21
4.2 Connection ............................................................................................................................... 22
4.3 Display and operating controls ........................................................................................ 23
4.3.1 Operating controls ................................................................................................................ 23
4.3.2 Access to the DIP switch and μSD card via the service cover ................................ 23
4.3.3 Alarm LEDs on the top of the enclosure ........................................................................ 24
5. Installation, connection and commissioning of the device ......................... 25
5.1 Mounting .................................................................................................................................. 25
5.2 Connection ............................................................................................................................... 25
5.2.1 Connection requirements .................................................................................................. 25
5.2.2 Wiring diagram ....................................................................................................................... 26
5.3 Commissioning ....................................................................................................................... 28
5.3.1 Commissioning flow chart insulation fault monitoring .......................................... 28
5.3.2 Commissioning flow chart insulation fault location (isoPV1685P(FR) only) .... 29
6. BMS and CAN bus ................................................................................................. 31
6.1 BMS bus ..................................................................................................................................... 31
6.1.1 RS-485 interface with BMS protocol ............................................................................... 31
6.1.2 Topology RS-485 network .................................................................................................. 32
6.1.3 BMS protocol ........................................................................................................................... 32
6.1.4 Commissioning of an RS-485 network with BMS protocol ..................................... 33
6.1.5 Setting the BMS address ..................................................................................................... 34
6.1.6 Alarm and operating messages via the BMS bus ....................................................... 34
6.1.6.1 Alarm messages .............................................................................................................. 35
6.1.6.2 Operating messages ...................................................................................................... 35
6.1.7 Resetting error messages ................................................................................................... 36
6.1.8 Starting the firmware update via the BMS bus ........................................................... 36
6.2 CAN bus ..................................................................................................................................... 36
6.3 Error codes BMS and CAN bus .......................................................................................... 37
7. Settings .................................................................................................................. 39
7.1 Setting the permissible system leakage capacitance or measurement speed . 39
7.2 Parameter setting with the tool iso1685-Set ............................................................... 39
7.3 Factory settings ...................................................................................................................... 40
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Table of Contents
8. Technical data ....................................................................................................... 41
8.1 isoPV1685... data in tabular form .................................................................................... 41
8.2 Standards, approvals and certifications ........................................................................ 44
8.3 Ordering data ......................................................................................................................... 44
8.4 Characteristic curves ............................................................................................................ 45
8.4.1 The measurable leakage capacitance depends on the insulation resistance 45
8.4.2 Response time for insulation measurement ............................................................... 45
8.4.3 Response time for residual current measurement(isoPV1685PFR only) .......... 47
8.4.4 Example of alarms stored in the history memory ..................................................... 48
INDEX ........................................................................................................................... 49
5isoPV1685-1685PFR_D00007_02_M_XXEN/10.2016
6
1. Important information
Always keep this manual within easy reach for future reference.To make it easier for you to understand and revisit certain sections in this manual, we have used sym-bols to identify important instructions and information. The meaning of these symbols is explained below:
This operating manual describes the isoPV1685 series consisting of isoPV1685 and isoPV1685PFR.
This manual is intended for qualified personnel working in electrical engineeringand electronics!
The signal word indicates that there is a high risk danger that will result in elec-trocution or serious injury if not avoided.
This signal word means that there is a medium risk of danger that can lead todeath or serious injury, if not avoided.
This signal word indicates a low level risk that can result in minor or moderateinjury or damage to property if not avoided.
This symbol denotes information intended to assist the userto make optimum use of the product.
DANGER
WARNING
CAUTION
7isoPV1685-1685PFR_D00007_02_M_XXEN/10.2016
Important information
1.1 Technical supportFor commissioning and troubleshooting Bender offers you:
1.1.1 First level supportTechnical support by phone or e-mail for all Bender products
• Questions concerning specific customer applications
• Commissioning
• Troubleshooting
Telephone: +49 6401 807-760*Fax: +49 6401 807-259In Germany only: 0700BenderHelp (Tel. and Fax)E-mail: [email protected]
1.1.2 Repair serviceRepair, calibration, update and replacement service for Bender products
• Repairing, calibrating, testing and analysing Bender products
• Hardware and software update for Bender devices
• Delivery of replacement devices in the event of faulty or incorrectly delivered Bender devices
• Extended guarantee for Bender devices, which includes an in-house repair service or replace-ment devices at no extra cost
Telephone: +49 6401 807-780** (technical issues)+49 6401 807-784**, -785** (sales)Fax: +49 6401 807-789E-mail: [email protected]
Please send the devices for repair to the following address:
Bender GmbH, Repair-Service,Londorfer Strasse 65,35305 Grünberg
1.1.3 Field serviceOn-site service for all Bender products
• Commissioning, parameter setting, maintenance, troubleshooting for Bender products
• Analysis of the electrical installation in the building (power quality test, EMC test, thermography)
• Training courses for customers
Telephone: +49 6401 807-752**, -762 **(technical issues)+49 6401 807-753** (sales)Fax: +49 6401 807-759E-mail: [email protected]: www.bender-de.com
*Available from 7.00 a.m. to 8.00 p.m. 365 days a year (CET/UTC+1)**Mo-Thu 7.00 a.m. - 8.00 p.m., Fr 7.00 a.m. - 13.00 p.m.
8 isoPV1685-1685PFR_D00007_02_M_XXEN/10.2016
Important information
1.2 Training coursesBender is happy to provide training regarding the use of test equipment. The dates of training courses and workshops can be found on the Internet at www.bender-de.com -> Know-how -> Seminars.
1.3 Delivery conditionsBender sale and delivery conditions apply. For software products the "Softwareklausel zur Überlassung von Standard-Software als Teil von Lieferungen, Ergänzung und Änderung der Allgemeinen Lieferbedingungen für Erzeugnisse und Leistungen der Elektroindustrie" (software clause in respect of the licensing of standard software as part of deliveries, modifications and changes to general delivery conditions for products and servic-es in the electrical industry) set out by the ZVEI (Zentralverband Elektrotechnik- und Elektronikindus-trie e. V.) (German Electrical and Electronic Manufacturer's Association) also applies.Sale and delivery conditions can be obtained from Bender in printed or electronic format.
1.4 StorageThe devices must only be stored in areas where they are protected from dust, damp, and spray and dripping water, and in which the specified storage temperatures can be ensured.
1.5 DisposalAbide by the national regulations and laws governing the disposal of this device. Ask your supplier if you are not sure how to dispose of the old equipment. The directive on waste electrical and electronic equipment (WEEE directive) and the directive on the restriction of certain hazardous substances in electrical and electronic equipment (RoHS directive) apply in the European Community. In Germany, these policies are implemented through the "Elec-trical and Electronic Equipment Act" (ElektroG). According to this, the following applies:
• Electrical and electronic equipment are not part of household waste.
• Batteries and accumulators are not part of household waste and must be disposed of in accord-ance with the regulations.
• Old electrical and electronic equipment from users other than private households which was introduced to the market after 13 August 2005 must be taken back by the manufacturer and disposed of properly.
For more information on the disposal of Bender devices, refer to our homepage at www.bender-de.com -> Service & support.
9isoPV1685-1685PFR_D00007_02_M_XXEN/10.2016
Important information
10 isoPV1685-1685PFR_D00007_02_M_XXEN/10.2016
2. Safety instructions
2.1 General safety instructionsPart of the device documentation in addition to this manual is the enclosed "Safety instructions for Bender products".
2.2 Work activities on electrical installations
If the device is being used in a location outside the Federal Republic of Germany, the applicable local standards and regulations must be complied with. European standard EN 50110 can be used as a guide.
Only qualified personnel are permitted to carry out the work necessary toinstall, commission and run a device or system.
Risk of electrocution due to electric shock!Touching live parts of the system carries the risk of: • An electric shock • Damage to the electrical installation • Destruction of the deviceBefore installing and connecting the device, make sure that the installa-tion has been de-energised. Observe the rules for working on electrical installa-tions.
DANGER
11isoPV1685-1685PFR_D00007_02_M_XXEN/10.2016
Safety instructions
2.3 Device-specific safety instructions
Danger due to excessive locating current or locating voltage!If the locating current of the locating current injector is too high, sensitive loads(e.g. in control circuits) may be damaged or switching operations may be acti-vated unintentionally. Select a low locating current for these systems. In cases ofdoubt, please contact our Service Department (see page 48).
Risk of electric shock!When opening the device, you may come into contact with live parts. Switch offthe mains voltage before opening the device!
Make sure that the basic settings meet the requirements of the IT system. Personswithout the required expertise, in particular children, must not have access to orcontact with the ISOMETER®.
Danger of electric shock!When opening the device there is the danger of touching live parts.Switch off the mains voltage before opening the device!
In the event of an alarm message of the ISOMETER®, the insulation fault shouldbe eliminated as quickly as possible.
If the ISOMETER® is installed inside a control cabinet, the insulation fault mes-sage must be audible and/or visible to attract attention.
When using ISOMETER®s in IT systems, make sure that only one activeISOMETER® is connected in each interconnected system. If IT systems are inter-connected via coupling switches, make sure that ISOMETER®s not currently usedare disconnected from the IT system and deactivated. IT systems coupled via di-odes or capacitances may also influence the insulation monitoring process sothat a central control of the different ISOMETER®s is required.
Prevent measurement errors!When a monitored IT system contains galvanically coupled DC circuits, an insu-lation fault can only be detected correctly if the rectifier valves (e.g. rectifier di-ode, thyristors, IGBTs, frequency inverters, …) carry a minimum current of> 10 mA.
DANGER
DANGER
WARNING
CAUTION
12 isoPV1685-1685PFR_D00007_02_M_XXEN/10.2016
Safety instructions
2.4 Address setting and terminationCorrect address setting and termination of the isoPV1685... series insulation monitoring device is essential for correct functioning.
Ensure correct address setting and termination of the device!
2.5 Intended use
The device is used for insulation and residual current monitoring (isoPV1685PFR only) of large pho-tovoltaic systems up to 1500 V designed as IT systems. The measurement method specially devel-oped for slow voltage fluctuations (MPP-Tracking) monitors the insulation resistance even in systems equipped with large solar generator panels where extremely high system leakage capaci-tances against earth exist due to interference suppression methods. Adaptation to system-related high leakage capacitances also occurs automatically.The device generates locating current pulses required for insulation fault location. That allows the localisation of the insulation fault using permanently installed or mobile insulation fault locators (isoPV1685P(FR) only).Integrated residual current monitoring allows fast signalling of a measured insulation faults on the AC side (inverter, transformer) (isoPV1685PFR only).
Intended use also implies:
• The observation of all information in the operating manual
• Compliance with test intervals
In order to meet the requirements of applicable standards, the equipment must be adjusted to local equipment and operating conditions by means of customised parameter settings. Please heed the limits of the range of application indicated in the technical data.
Any other use than that described in this manual is regarded as improper.
Unspecified frequency rangeWhen connecting to an IT system with frequency components below the speci-fied frequency range, the response times and response values may differ fromthe indicated technical data. However, depending on the application and the se-lected measurement method, continuous insulation monitoring is also possiblein this frequency range.There is no influence on the insulation monitoring for IT systems with frequencycomponents above the specified frequency range, e.g. within the range of typicalswitching frequencies of frequency inverters (2…20 kHz).
Risk of bus errors!Double assignment of addresses on the respective BMS or CAN busses can causeserious malfunctions.
Only qualified personnel are permitted to carry out the work necessary toinstall, commission and run a device or system.
CAUTION
13isoPV1685-1685PFR_D00007_02_M_XXEN/10.2016
Safety instructions
14 isoPV1685-1685PFR_D00007_02_M_XXEN/10.2016
3. Function
3.1 Device features isoPV1685, isoPV1685P and isoPV1685PFROnly device version isoPV1685PFR provides a locating current injector and residual current measure-ment! The device version isoPV1685PFR additionally ist able to perform a differential method.
• Insulation monitoring of large-scale photovoltaic systems
• Measurement of low-resistance insulation faults
• Separately adjustable response values Ran1 (Alarm 1) and Ran2 (Alarm 2) (both 200 Ω…1 MΩ) for prewarning and alarm
• Automatic adaptation to high system leakage capacitances up to 2000 μF, selectable range
• Connection monitoring of L+, L- for reverse polarity
• Integrated locating current injector up to 50 mA (isoPV1685P(FR) only)
• Fast detection of insulation faults on the AC side by residual current monitoring (inverter, transformer) allowing fast disconnection(isoPV1685PFR only)
• Residual current response values IΔn for prewarning and alarm (1…5 A)(isoPV1685PFR only)
• CT connection monitoring(isoPV1685PFR only)
• Device self test with automatic fault message in the event of a fault
• Alarm relays separately adjustable for insulation faults, residual current faults and device errors (isoPV1685PFR only);
• Alarm relays separately adjustable for insulation fault 1, insulation fault 2 (isoPV1685(P) only)
• CAN interface to output measured values, statuses and alarms
• RS-485 interface (BMS bus), e.g. to control insulation fault location
• μSD card with data logger and history memory for alarms(isoPV1685P(FR) only)
3.2 Product descriptionThe ISOMETER® is an insulation monitoring device for IT systems in accordance with IEC 61557-8 and IEC 61557-9. It is applicable for use in photovoltaic systems.
The following texts always describe device version isoPV1685PFR which providesmore device features, the device version which includes a locating current injec-tor and residual current measurement.
15isoPV1685-1685PFR_D00007_02_M_XXEN/10.2016
Function
3.3 Description of functionInsulation monitoring is carried out using an active measuring pulse which is superimposed onto the PV system to earth via the integrated coupling.
isoPV1685:When the insulation resistance between the IT system and earth falls below the pre-set prewarning response value Ran1, LED "Alarm 1" lights and the alarm relay K1 switches. When the value also falls below response value Ran2, LED "Alarm 2" lights too and the alarm relay K2 switches.
isoPV1685P:When the insulation resistance between the IT system and earth falls below the pre-set prewarning response value Ran1, LED "Alarm 1" lights and the alarm relay K1 switches. When the value also falls below response value Ran2, LED "Alarm 2" lights too and the alarm relay K2 switches.The locating current injector integrated in the device for insulation fault location is externally acti-vated via the BMS interface or, when no master is available, via the integrated substitute master function. When starting insulation fault location, the LED "PGH on" signals the locating current pulse.The insulation fault location can be started in the manual mode via the digital input 1. E.g. for the insulation fault location with mobile insulation fault locator (e.g. EDS195).
isoPV1685PFR:When the insulation resistance between the PV system and earth falls below the set prewarning re-sponse value Ran1, only LED "Alarm 1" lights. When the value also falls below the alarm response val-ue Ran2, the alarm relay K1 switches and the LED "Alarm 2" lights. The residual current is detected via an external measuring current transformer. The r.m.s. value is cal-culated by summing up the AC component that are below the cut-off frequency. When the residual current exceeds the set alarm response value, the corresponding alarm relay K2 switches and the as-sociated LED "Alarm IdN" lights up. All relevant measured values and their statuses (Normal, Prewarning, Alarm) are cyclically sent via the CAN interface.The locating current injector integrated in the device for insulation fault location is externally acti-vated via the BMS interface. When starting insulation fault location, the LED "PGH on" signals the lo-cating current pulse.
The integrated μSD card (isoPV1685PFR only) is used as data logger for storing all relevant events. The following measured values, statuses and alarms are stored during operation:
– Insulation resistances and leakage capacitances
– Residual currents
– System voltages, partial voltages to earth, supply voltages
– Temperatures: current controller PGH, coupling L+, L–
– Insulation fault, residual current fault
– Connection fault
– Device error
Following each start-up, a new log file is generated. If the current file size exceeds 10 MByte during operation, a new file is generated. The file name contains the time and date of the creation time. The typical time that is needed until the maximum file size is reached is approximately 2 days. Hence, a μSD card with a memory space of 2 GByte can record data for approx. 400 days. When the maximum data limit is reached on your card, the oldest file in each case will be overwritten.The history memory that is also copied to the μSD card contains all alarms in csv. format.
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Function
3.3.1 Insulation monitoringFor insulation monitoring, a pulsating AC measuring voltage is superimposed on the PV system. The measuring pulse consists of positive and negative rectangular impulses of the same amplitude. The period depends on the system leakage capacitances in each case and the insulation resistances of the system to be monitored.
Fig. 3.1: Pulse sequence of the measuring voltage for insulation fault monitoring
An insulation fault between system and earth closes the measuring circuit. When the insulation re-sistance between the PV system and earth falls below the set response values Ran1 and Ran2 (1 = prewarning, 2 = alarm), the associated alarm relay K1 (11, 12, 14) switches. Detected insulation faults are signalled to other bus devices via the BMS bus and the CAN bus. In addition, the alarm LEDs Alarm 1 resp. Alarm 2 located on the pcb, which are not accessible during normal operation, will light up.
3.3.2 Insulation fault location (isoPV1685P(FR))For insulation fault location, a suitable locating current is superimposed onto the faulty PV system with which EDS... insulation fault locators can locate insulation faults. isoPV1685P(FR) utilises an in-ternal locating current injector with IL ≤ DC 50 mA.
Fig. 3.2: Pulse sequence of the internal locating current injector for insulation fault location
When permanently installed insulation fault locators (with master capability) are used ,such as EDS460-D or EDS490-D, control and synchronisation of the locating current injector is carried out by one of the insulation fault locators in BMS master mode. For this purpose, the isoPV1685P(FR) has to communicate with the insulation fault locator via the BMS bus.
During the insulation fault location process, the function of insulation resistancemeasurement is deactivated and the coupling is disconnected from the mains.
Um
t
2 s 4 s 2 s 4 s
IL
t
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Function
Parameterisation of insulation fault location By means of the BMS gateway, e.g. the COM460IP or terminal program, different modes can be selected via the BMS bus:
• off:Switch off insulation fault location
• auto (automatic): (Factory setting)Insulation fault location and pause, alternately 5 minutes each. During each pause, the device automatically switches to insulation fault measurement.
• 1 cycle:The locating current required for insulation fault location is supplied for 1 cycle (about 5 min-utes) to the device.
• on (permanent):The locating current required for insulation fault location is permanently supplied to the device.
In addition, the value of the locating current required for insulation fault location has to be set to 1…50 mA.
3.3.3 Residual current monitoring (isoPV1685PFR)For the detection of insulation faults on the AC side, residual current monitoring was integrated into the isoPV1685PFR. An external measuring current transformer with one measuring and test winding is required for this purpose. For current transformer monitoring an appropriate signal is delivered via the test winding that is evaluated by the measurement winding.
3.3.4 Self test
3.3.4.1 Self test after connection to the supply voltageOnce connected to the supply voltage, all internal measurement functions, the components of the process control such as data and parameter memory as well as the connections to earth are checked. Once the self test is finished, after approx. 5 s the normal measurement mode begins.If a device or connection error is detected, the corresponding alarm will be signalled via the BMS bus as well as via the alarm relay K3 (31-32-34). This relay is continuously operating in N/C operation, i.e. it de-energises even in case of a complete device failure.During this self test, when the device is being started, the alarm relays K1 and K2 are not switched.
3.3.4.2 Automatic self testAll supply voltages are continuously monitored. The following tests are continuously carried out in the background:- Connection E-KE- System polarity- Residual current transformer (connection, short-circuit, isoPV1685PFR only)- Temperature measurement- Pulse generator
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Function
3.3.4.3 Manual self testThe self test is started via the BMS or CAN interface by a BMS master with the test button or by any CAN bus device.Only in the manual self test mode (via BMS or CAN), the following tests can be carried out:- internal Flash - internal RAM- CPU register- Watchdogs- Oscillator- Function of the Iso measurement technique- Restart of the device including re-initialising and recalibration (only when the test is requested via BMS)
via the BMS bus. During the manual self test via the BMS bus, the alarm relays K1 (11-12-14) and K2 (21-22-24) are switched. K3 is only shortly switched over after a device restart.
via CAN busWhen the self test is started via the CAN bus, you can choose between an insulation fault measure-ment test or a residual current measurement test (isoPV1685PFR only).
isoPV1685(P): During the insulation fault measurement test, the alarm relay K1 (11-12-14) and K2 (21-22-24)are switched over. K3 is not switched over.
isoPV1685: During the insulation fault measurement test, the alarm relay K1 (11-12-14) is switched over. During the residual current measurement test, the alarm relay K2 (21-22-24) is switched over. K3 is not switched over.
3.3.5 Assignment of the alarm relays K1, K2, K3
Relay assignment isoPV1685(P):K1 switches when the value falls below the alarm response value Ran1 (insulation resistance).K2 switches when the value falls below the alarm response value Ran2 (insulation resistance).K3 switches in the event of a device or connection error.
Relay assignment isoPV1685PFR:K1 switches when the value falls below the alarm response value Ran2 (insulation resistance).K2 switches when the alarm response value IΔn2 (residual current) is exceeded.K3 switches in the event of a device or connection error.
3.3.6 Standby modeIn standby mode, the coupling unit of the device is galvanically isolated from the system to be mon-itored (isoPV1685PFR only). The standby mode can be activated resp. deactivated via the BMS chan-nel 10:Activate the standby mode using the BMS command STDBY 1Deactivate the standby mode using the BMS command STDBY 0Query the current state using the BMS command TRSH? 10The standby mode of the isoPV1685PFR for example, allows team operation of inverters since in inter-connected systems only one insulation monitoring device is allowed to be connected in each system.
Once a month, carry out a manual self test via the BMS or CAN bus to ensure thatthe device functions correctly!
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Function
3.3.7 Measured value transmission to the control inputs of the inverterAll recorded measured values, operating messages and alarms are made available via the CAN bus and the BMS bus. Communication is primarily carried out via the CAN bus.
3.3.8 History memoryAll warnings, alarms and device errors including "Come", "Go" and "Acknowledgement" timestamps are stored in the internal history memory.The history data are copied from the internal EEPROM to the History.csv file on the μSD card under the following conditions:- following device start-up- during operation once an hour- when a compatible μSD card has been inserted
For the evaluation of the history memory, the Excel tool "iso1685 History.xlsx" can be made available. This tool allows csv.-file data to be processed and evaluated. By way of example, history memory en-tries are shown on page 48.The tool includes detailed information about the use.
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4. Device overview
4.1 Dimensions
SERVICE
ALARM 2
ISOMETER®isoPV1685
ON
ALARM 1
PGH ON
ALARM 3 (I∆n)
246
mm
125
mm
40,5
mm
40,75 mm
51 mm
368 mm
383 mm
401,5 mm
106 mm
64 m
m
8,75
mm
5,2 mm
61,8
mm
76,6
mm
39,8 mm
55,7 mm
21isoPV1685-1685PFR_D00007_02_M_XXEN/10.2016
Device overview
4.2 Connection
A1 A2E KE21 22 2431 32 34k l kT ITA B S
RS-485Term.
off on
CAN 1 CAN 2
I2+ I2- I1+ I1-
K3 K2
11 12 14
K1
I2+ I2- I1+ I1- A B S k I kT IT 31 32 34 21 22 24 11 12 14 E KE A1 A2
I2+I2-I1+I1-Digital Inputs without function
RS485 Term.offon
CAN 1CAN 2
A, B, SRS485 Bus connection (A,B) Protocol: BMS
kIkTIT(Only for isoPV1685PFR with function)
31, 32, 34Output for device error (LED „Service“)
21, 22, 24Output for Alarm insulation fault
11, 12, 14Output for Alarm insulation fault
E, KEConnection E/KEConnect both to PE
A1, A2Supply voltage DC24V.Any polarity
SERVICE
ALARM 2
ISOMETER®iso1685FR
ON
ALARM 1
SERVICE
ALARM 2
ISOMETER®isoPV1685
ON
ALARM 1
PGH ON
ALARM 3 (I∆n)
LEDs:- ON: Power On (flashes)- PGH ON: Insulation fault location (isoPV1685PFR)- SERVICE: Device error, Connection fault- ALARM 1: Insulation fault- ALARM 2: Insulation fault- ALARM 3: Residual current fault (isoPV1685PFR)
DIP switch (SS8103)
Button (ST6101)
Memory Card (SDCard)
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Device overview
4.3 Display and operating controls
4.3.1 Operating controlsThe representation below shows the relative position of the operating elements.
4.3.2 Access to the DIP switch and μSD card via the service coverOpen the service cover by applying a little pressure to the ribbed area. Then drag the cover away from the device housing. Once the cover has been removed, the following adjustments can be carried out:
• Change BMS address (SS8103)
• Set maximum leakage capacitance (SS8103)
• Change measurement speed (SS8103)
• Reset Alarms (ST6101)
Additionally, you can read out e.g. alarms from the μSD card.
You can find a description of the DIP switch in "chapter 7.1 Setting the permissible system leakage capacitance or measurement speed" on page 39.
Controls Function
DIP switch(SS8103)
BMS termination A4…A0Leakage capacitance settingMeasurement speed setting
Button(ST6101)
Alarm resetting
Memory card(SDCard)
Memory for firmware and log files (μSD-Card);isoPV1685PFR only
SERVICE
ALARM 2
ISOMETER®iso1685FR
ON
ALARM 1
SERVICE
ALARM 2
ISOMETER®isoPV1685
ON
ALARM 1
PGH ON
ALARM 3 (I∆n)
23isoPV1685-1685PFR_D00007_02_M_XXEN/10.2016
Device overview
4.3.3 Alarm LEDs on the top of the enclosure
LED Beschreibung
ON(green)
Power On indicatorFlashes with a pulse duty factor of approx. 80 %.
Device error:Lights continuously, when the device stops functioning (device stopped).
Software update:Flashes approx. three times faster during the firmware update than in the standard mode, update time < 4 minutes.
PGH ON(green)
isoPV1685PFR only:Insulation fault location:Flashes with the cycle of the locating current.
SERVICE(yellow)
Internal device error and connection fault (system, earth, measuring current transformer):Lights continuously.Also refer to the list of error codes on page 37
ALARM 1(yellow)
Insulation fault 1 (prewarning):Lights continuously, when the insulation resistance falls below response value 1, RF < Ran1.
Connection fault earth:Flashes
ALARM 2(yellow)
Insulation fault 2 (Alarm):Lights continuously, when the insulation resistance value falls below response value 2, RF < Ran2.
Connection fault earth:Flashes
ALARM 3 (IΔn)
(yellow)
isoPV1685PFR only:Residual current fault:Only lights up in the case of IΔ > IΔn2 (alarm).Prewarning (IΔ > IΔn1) will only be signalled via the CAN or BMS bus, see page 35.
isoPV1685PFR only:Fault measuring current transformer:Flashes
SERVICE
ALARM 2
ISOMETER®isoPV1685
ON
ALARM 1
PGH ON
ALARM 3 (I∆n)
24 isoPV1685-1685PFR_D00007_02_M_XXEN/10.2016
5. Installation, connection and commissioning of the device
5.1 MountingInstall the device using four M5 screws, also refer to the dimension diagram on page 21. Install the device so that it is in a vertical position with the system coupling (L+, L–) positioned at the top when it is being operated. All dimensions in mm.
5.2 Connection
5.2.1 Connection requirements
Only qualified personnel are permitted to carry out the work necessary toinstall, commission and run a device or system.
Risk of electrocution due to electric shock!Touching live parts of the system carries the risk of: • An electric shock • Damage to the electrical installation • Destruction of the deviceBefore installing and connecting the device, make sure that the installa-tion has been de-energised. Observe the rules for working on electrical installa-tions.
Warning of insulation monitoring devices that do not work correctly!Connect the terminals KE and E individually to the protective earth conductor PE.
Risk of injury from sharp-edged terminals!Risk of lacerations.Touch the enclosure and the terminals with due care.
Risk of property damage due to unprofessional installation!If more than one insulation monitoring device is connected to a conductivelyconnected system, the system can be damaged. If several devices are connected,the device does not function and does not signal insulation faults. Make surethat only one insulation monitoring device is connected in each conductivelyconnected system.
DANGER
WARNING
CAUTION
CAUTION
25isoPV1685-1685PFR_D00007_02_M_XXEN/10.2016
Installation, connection and commissioning of the device
5.2.2 Wiring diagramConnect the device with the help of the connection and terminal diagram. Use the adjacent legend.
Fig. 5.1: Connection and terminal diagram
Ensure disconnection from the IT system!When insulation or voltage tests are to be carried out, the device must be isola-ted from the system for the test period. Otherwise the device may be damaged.
Check proper connection!Prior to commissioning of the installation, check that the device has been pro-perly connected and check the device functions. Perform a functional test usingan earth fault via a suitable resistance.
ISOMETER®iso1685
US
6A31 32 34 11 12 1421 22 24
6A
1A1A
BMS-Master2
PE
k I kT ITI2+ I2- I1+ I1- A1 A2E KE
L2/-L1/+
A B S K1K3 K2CAN1 CAN2
PGH ON
L1L2L3
G
SERVICE
ALARM 2
ISOMETER®isoPV1685
ON
ALARM 1
PGH ON
ALARM 3 (I∆n)
26 isoPV1685-1685PFR_D00007_02_M_XXEN/10.2016
Installation, connection and commissioning of the device
Cable routing through the measuring current transformer (isoPV1685PFR only)Only conductors insulated in conformance with the standards may be routed through the measur-ing current transformer.Make sure to route the conductors centrically through the measuring current transformer!
Terminal,socket
Connections
I2+, I2– Currently has no function, digital input
I1+, I1– Currently has no function, digital input
CAN2 CAN1 Connection to CAN bus, 2 x RJ-45, can be terminated using SS8102.
A, B, SConnection to BMS bus, RS-485, S= shield (connect one end to PE), can be terminated with SS8100.
k, l/kT, lTisoPV1685PFR only:Connection to measuring current transformerk, l = measurement winding/kT, lT = test winding
31, 32, 34 Alarm relay K3 for internal device errors
21, 22, 24
Description of relay assignment according to device type, see page 19;isoPV1685 only:Alarm relay K2 for insulation faultsisoPV1685PFR only:Alarm relay K2 for residual current faults
11, 12, 14 Alarm relay K1 for insulation faults
E, KE Separate connection of E and KE to PE
A1, A2 Connection to Us = DC 24 V via fuses, 6 A each
L+ Connection to L+ of the PV generator via 1 A fuse
L– Connection to L– of the PV generator via 1 A fuse
27isoPV1685-1685PFR_D00007_02_M_XXEN/10.2016
Installation, connection and commissioning of the device
5.3 Commissioning
5.3.1 Commissioning flow chart insulation fault monitoring
System = IT system ?
Device connection
Un < DC1500 V ?
isoPV1685 not suitableno
Deenergize the installation before connecting the device
E and KE to PE
System to L+, L-
Optional Device connection
BMS bus to A, B, S
Supply voltage to A1/A2
Message periphery to K1, K2, K3 11-12-14, 21-22-24, 31-32-34
Connect supply voltage
Connect mains voltage
no
yes
yes
ja
isoPV1685 not suitable
Measuring current transformers to k, l, kT, lT
Connection or device error: check connection
Shall the factory setting be retained? no
yes
Carry out settings via the CAN or BMS bus
Alarm LEDs deactivated?
yes
no Preset response valueundershot, possibly adjust
Function test with a suitableresistance between system and
earth. Value: 50% of the response value Ran2
Alarm LEDs activated?Alarm relays switched?
yes
no Check connections
Remove resistance
The isoPV1685P is correctly connected and functions reliably
Alarm LEDs extinguished?Alarm relays switched?
no
Optionally via the CAN bus: set the clock
The isoPV1685P successfully carries out a self test
CAN bus to CAN socket
yes
no
28 isoPV1685-1685PFR_D00007_02_M_XXEN/10.2016
Installation, connection and commissioning of the device
5.3.2 Commissioning flow chart insulation fault location (isoPV1685P(FR) only)
Install the Insulation fault locator EDS46x /49x and the
appropriate CTs
Connect the BMS bus cable of the EDS system to the
isoPV1685PFR
Make sure that the system is
disconnected from any electrical
source before connecting the device!
Address all BMS components, a bus master with address 1 is required
Connect supply voltage
Connect system voltage
isoPV1685PFR successfullycarries out a self test
Function test with a suitableresistance between system and
earth. Value: 50% of the response value Ran2
Alarm LEDs activated?Alarm relays switched?
yes
no Set the EDS mode of the isoPV1685PFR to „auto“ via the BMS bus
Press the test button of theEDS46x / 49x
Is the faulty subcircuit being recognised correctly:ADR:xx k:xx xxmA
yes
Shall other connectedCTs be tested?
Are all CTs recognised correctly from EDS46x / 49x ? no Check the CT wiring
yes
no
yesRemove resistor and select another circuit
downstream a measuring current transformer
LED "PGH on" of the isoPV1685PFR is flashing.
Insulation fault location is activated
Shall the factory setting be retained?
yes
no Change the settings in the EDS device menu, change the EDS parameters of the isoPV1685PFR
yes
no Connection or device error: check connections
yes
Remove the resistor
Alarm LEDs extinguished?Alarm relays switched?
Delete alarm messages:Press reset button at the EDS... or call up the EDS reset in the
EDS... menu
no
no
The EDS... operates properly and is connected correctly
29isoPV1685-1685PFR_D00007_02_M_XXEN/10.2016
Installation, connection and commissioning of the device
30 isoPV1685-1685PFR_D00007_02_M_XXEN/10.2016
6. BMS and CAN bus
6.1 BMS bus
6.1.1 RS-485 interface with BMS protocol The RS-485 interface, galvanically isolated from the device electronics, serves as a physical transmis-sion medium for the BMS protocol. When an isoPV1685…or other bus devices are interconnected via the BMS bus in a network, the BMS bus must be terminated at both ends with a 120 Ω resistor. For this purpose, the device is equipped with the terminating switch SS8100.
An RS-485 network that is not terminated is likely to get instable and may result in malfunctions. Only the first and the last device in one line may be terminated. Stub feeders in the network are not to be terminated. The length of the stub feeders is restricted to 1 meter.
Fig. 6.1: Wiring and termination of the BMS bus with SS8100on the pcb or enclosure
maximum length of the RS-485 network: 1200 m
1. device … device last device
stub feedermax. 1 m
A1 A2E KE21 22 2431 32 34k l kT ITA B S
RS-485Term.
off on
CAN 1 CAN 2
I2+ I2- I1+ I1-
K3 K2
11 12 14
K1
I2+ I2- I1+ I1- A B S k I kT IT 31 32 34 21 22 24 11 12 14 E KE A1 A2
A B S
RS-485Term.
off on
CAN 2
A B S
A B S
CAN 2
A B S
31isoPV1685-1685PFR_D00007_02_M_XXEN/10.2016
BMS and CAN bus
6.1.2 Topology RS-485 networkThe optimum topology for an RS-485 network is a daisy-chain connection. In this connection, device 1 is connected to device 2, device 2 to device 3, device 3 to device n etc. The RS-485 network represents a continuous path without branches.
Correct arrangementThree examples for correct arrangement:
Wrong arrangementThree examples for wrong arrangement:
WiringThe suitable type of wiring for the RS-485 network is:shielded cable, core diameter ≥ 0.8 mm(e.g. J-Y(St)Y2x0.8), shield connected to earth (PE) on one end.Connection to the terminals A and B.The number of bus nodes is restricted to 32 devices. When more devices are to be connected, Bender recommends to use a DI1 repeater.
6.1.3 BMS protocolThis protocol is an essential part of the Bender measuring device interface (BMS bus protocol). Data transmission generally makes use of ASCII characters.Interface data are:
• Baud rate:9600 baud
• Transmission:1 start bit, 7 data bits, 1 parity bit, 1 stop bit (1, 7, E, 1)
• Parity:even
• Checksum:Sum of all transmitted bytes = 0 (without CR and LF)
The BMS bus protocol works according to the Master-Slave principle. Only one master may exist in each network. All bus devices are identified by a unique BMS address. The master cyclically scans all other slaves on the bus, listens to their signals and then carries out the corresponding commands. A device receives the MASTER function by assigning Bus address 1 to it.
���
� ��
�� ��
32 isoPV1685-1685PFR_D00007_02_M_XXEN/10.2016
BMS and CAN bus
BMS masterA master can query all measured values, alarm and operating messages from a slave.If bus address 1 is assigned to a device, this device automatically represents the master. That means that all addresses between 1 and 150 are cyclically scanned via the BMS bus for alarm and operating messages. If the master receives no answer from five subsequent addresses, the scanning cycle will be started again. If the master recognises incorrect answers from a slave, the fault message "Fault RS-485" will be output via the BMS bus.
ISOMETER® isoPV1685P is not a master and adress 1 cannot be assigned to this device. However, if no master is available in the system, the ISOMETER® isoPV1685P can function as a substitute master with an BMS adress >1 (e.g. 2 or 3). Slaves in the system can be adressed via the substitute master.
Fault causes may be:
• Addresses are assigned twice
• A second master exists on the BMS bus
• Interference signals occur on the bus lines
• A defective device is connected to the bus
• Terminating resistors are not activated resp. not connected
6.1.4 Commissioning of an RS-485 network with BMS protocol• Connect the terminals A and B of all bus devices in one line.
• Switch the terminating resistors on at the start and the end of the RS-485 network. If a device at the end of the bus is not terminated, connect a 120 Ω resistor to the terminals A and B.
• Switch the supply voltage on.
• Assign the master function and address 1 to a bus-capable device.
• Assign addresses (2…33) to all other bus devices in consecutive order.
The isoPV1685… can only be operated as BMS-SLAVE!
33isoPV1685-1685PFR_D00007_02_M_XXEN/10.2016
BMS and CAN bus
6.1.5 Setting the BMS addressThe factory setting of the BMS address can be changed using the DIP switch SS8103. Factory setting BMS address = 2.
6.1.6 Alarm and operating messages via the BMS busMessages are transmitted to a maximum of 12 BMS channels. All alarm and operating messages which may occur are described below.
DIP-Schalter SS8103
Switch position: BMS- Adr. A4 A3 A2 A1 A0
Up = Off Down = On
2 0 0 0 0 0
3 0 0 0 0 1
4 0 0 0 1 0
5 0 0 0 1 1
6 0 0 1 0 0
7 0 0 1 0 1
8 0 0 1 1 0
9 0 0 1 1 1
10 0 1 0 0 0
.. .. .. .. .. ..
... ... ... ... ... ...
33 1 1 1 1 1
O
A4A3A2A1A0
12345678
34 isoPV1685-1685PFR_D00007_02_M_XXEN/10.2016
BMS and CAN bus
6.1.6.1 Alarm messages
6.1.6.2 Operating messages
Alarm Channel Meaning
Alarm 1 (insulation fault)
1 Insulation resistance < response value Ran1 (prewarning)
Alarm 2 (insulation fault)
2 Insulation resistance < response value Ran2 (Alarm)
Alarm IΔN (residual current fault)
3Residual current > response value IΔn1 (prewarning) resp. > IΔn2 (alarm);Channel occupied (isoPV1685PFR only)
Connection system(reverse polarity)
4 Connection error: L+, L– reversed
Connection PE 5 Connection error: E/KE not connected to PE
No CT connected 6Connection fault measuring current transformer;Channel occupied (isoPV1685PFR only)
Device error 7 Internal device error with error code
Overtemperaturecoupling
10 Overtemperature coupling L+
Overtemperaturecoupling
11 Overtemperature coupling L–
Overtemperature PGH 12Overtemperature of the locating current injector;Channel occupied (isoPV1685P(FR) only)
Alarm Channel Meaning
Insulation resistance 1 Insulation resistance ≥ response value Ran1
Insulation resistance 2 Insulation resistance ≥ response value Ran2
Residual current IΔN 3Residual current ≤ response value IΔn1 (prewarning);Channel occupied (isoPV1685PFR only)
Leakage capacitance 4 Leakage capacitance Ce to earth
System voltage 5 Voltage between L+ and L–
Partial voltage U+/PE 6 Voltage between L+ and PE
Partial voltage U-/PE 7 Voltage between L– and PE
PGH current 8Current locating current of the locating current injector (PGH);Channel occupied (isoPV1685P(FR) only)
Temperature coupling 10 Current temperature of the coupling L+
Temperature coupling 11 Current temperature of the coupling L–
Temperature PGH 12 Current temperature of the locating current injector
35isoPV1685-1685PFR_D00007_02_M_XXEN/10.2016
BMS and CAN bus
6.1.7 Resetting error messagesRecorded errors are provided as alarm messages on the BMS bus and the CAN bus.Pressing the reset button ST6101 will reset these error messages. If the error continues to exist, the message will be generated again.The error can also be reset by means of the acknowledgement command via the CAN bus.
6.1.8 Starting the firmware update via the BMS busThe firmware can be updated via the BMS bus using the BMS Update Manager which can be obtained from Bender.
6.2 CAN busCommunication via the CAN interface is descriped in a separate document. The CAN bus can be ter-minated with a 120 Ω terminator plug.
Fig. 6.2: CAN bus termination
O
A4A3A2A1A0
12345678
CAN 1 CAN 2
36 isoPV1685-1685PFR_D00007_02_M_XXEN/10.2016
BMS and CAN bus
6.3 Error codes BMS and CAN busThe following list contains all relevant error codes output via BMS bus or CAN bus. The right-hand column describes the relevant action to be taken in each case.
Error code ErrorTo do BMS CAN Component Description
Connection 0402x0 01.0 CT connection Check connection
0.20 0x2008 Hardware Connection to earth (E/KE)
8.11 0x8003 Hardware Self test insulation monitoring Contact service
8.12 0x8007 Hardware Measuring voltage source
8.21 0x8004 Hardware Self test residual current monitoring
8.31 0x8007 Hardware PGH: Locating current too high
8.32 0x8007 Hardware PGH: Locating current isn‘t to switch out
8.41 0x8005 Anschluss Mains voltage (L+, L-) polarity incorrect
8.42 0x8007 Hardware Supply voltage ADC
8.43 0x8007 Hardware Supply voltage +12 V
8.44 0x8007 Hardware Supply voltage -12 V
8.45 0x8007 Hardware Supply voltage +5 V
8.46 0x8007 Hardware Supply voltage +3,3 V
retemaraP 6008x0 16.9
9.62 0x8006 Parameter Residual current measurement
9.63 0x8006 Parameter Locating current injector
9.64 0x8008 Parameter Voltage measurement
9.71 0x80FF System Program sequence insulation monitoring
9.72 0x80FF System Program sequence residual current measurement
9.73 0x80FF System Program sequence locating current injector
9.74 0x80FF System Program sequence voltage measurement
9.75 0x80FF System Program sequence temperature measurement
9.76 0x80FF System Program sequence history memory
9.77 0x80FF System Program sequence console
9.78 0x80FF System Program sequence self test
metsyS FF08x0 97.9
Check connection
Replace the device
Contact service
Replace the device
Replace the device
Replace the deviceReplace the device
Replace the device
Replace the device
Replace the device
Download factory settingand parameterise newDownload factory settingand parameterise newDownload factory settingand parameterise newContact service
Re-start device
Re-start device
Re-start device
Re-start device
Re-start deviceRe-start device
Re-start device
Re-start device
Re-start device
Insulation resistance measurement
Stack error
Check connection
37isoPV1685-1685PFR_D00007_02_M_XXEN/10.2016
BMS and CAN bus
38 isoPV1685-1685PFR_D00007_02_M_XXEN/10.2016
7. Settings
7.1 Setting the permissible system leakage capacitance or measurement speed
The segments 6 and 7 of the DIP switch SS8103 are used to switch over the maximum system leakage capacitance Ce max and the measurement speed. The measurement speed can be set to "Slow" in the case of frequently occurring fault alarms caused by transients in the system. In the Slow mode, the measurement time doubles. Segment 8 is reserved.
7.2 Parameter setting with the tool iso1685-SetParameters for the isoPV1685 can be set with the tool iso1685-Set.The software can be downloaded here: http://www.bender-de.com/en/service-support/download/software.html
These settings may only be changed, when the PV voltage is switched off.When the maximum system leakage capacitance Ce max is set to 2000 μF theupper limit of measuring range for the insulation resistance decreases from1 MΩ to 50 kΩ.
DIP switch SS8103, segment 6:OFF = 500 μF = Ce maxON = 2000 μF = Ce max
Switch position:Up = OffDown = On
DIP switch SS8103, segment 7:OFF = FastON = Slow
Bender provides this software free of charge and without warranty. By using theSoftware, you agree to use the software on your own risk. Bender is not responsi-ble for possible software errors or shortcomings and does not guarantee that thesoftware is correctly and reliably. In addition, Bender is not liable for direct andindirect damages, arising from the use of the software.
The tool iso1685-Set can only be used when there is no master in the BMS system.
OA4A3A2A1A0
12345678
39isoPV1685-1685PFR_D00007_02_M_XXEN/10.2016
Settings
7.3 Factory settings
Parameters ParameterCondition can be set via
Insulation response value Ran1 10kΩ BMS, CAN
Insulation response value Ran2 1 kΩ BMS, CAN
isoPV1685PFR only:Residual current response value IΔn1
1 A BMS, CAN
isoPV1685PFR only:Residual current response value IΔn2
5 A BMS, CAN
Fault memory insulation measurement off BMS
isoPV1685PFR only:Fault memory residual current measure-ment
off BMS
isoPV1685PFR only:Transformer monitoring
on BMS
Relay K1 (11/12/14) N/C operation BMS
Relay K2 (21/22/24) N/C operation BMS
Relay K3 (31/32/34) N/C operation –
isoPV1685P(FR) only:EDS mode
auto BMS
isoPV1685P(FR) only:PGH current
30 mA BMS
isoPV1685PFR only:Standby mode (disconnection from the mains)
off BMS
Reset to factory setting --- BMS
BMS address 2 SS8103
BMS termination ON SS8100
CAN termination ON SS8102
Permissible system leakage capacitance ≤ 500 μF SS8103
Measurement speed Fast SS8103
40 isoPV1685-1685PFR_D00007_02_M_XXEN/10.2016
8. Technical data
8.1 isoPV1685... data in tabular form
( )* = factory setting
Insulation coordination acc. to IEC 60664-1 IEC 60664-3Insulation coordination acc. to IEC 60664-1Rated insulation voltage...................................................................................................................................... DC 1500 VRated impulse voltage/pollution degree.................................................................................................................. 8 kV/2
Voltage rangesNominal system voltage Un ...................................................................................................................... DC 0…1500 VTolerance of Un ................................................................................................................................................... DC + 6 %Supply voltage Us (also see device nameplate) .......................................................................................... DC 18…30 VPower consumption .................................................................................................................................................. ≤ 7 WPower consumption ............................................................................................................................................. ≤ 7.5 VA
Measuring circuit for insulation monitoringMeasuring voltage Um (peak value) ........................................................................................................................ ± 50 VMeasuring current Im (at RF = 0 Ω) ................................................................................................................... ≤ 1.5 mAInternal DC resistance Ri ....................................................................................................................................... ≥ 70 k ΩImpedance Zi at 50 Hz........................................................................................................................................... ≥ 70 k ΩPermissible extraneous DC voltage Ufg.......................................................................................................... ≤ DC 1500 VPermissible system leakage capacitance Ce .................................................................................... ≤ 2 000 μF (500 μF)*
Response values for insulation monitoringResponse value Ran1 (Alarm 1) .................................................................................................... 200 Ω…1 MΩ (10 kΩ)*Response value Ran2 (Alarm 2) ...................................................................................................... 200 Ω…1 MΩ (1 kΩ)*Upper limit of the measuring range when set to Cemax = 2000 μF ........................................................................ 50 kΩRelative uncertainty (10 kΩ…1 MΩ) (acc. to IEC 61557-8)................................................................................ ± 15 %Relative uncertainty (0.2 kΩ…< 10 kΩ) ............................................................................................. ± 200 Ω ± 15 %Response time tan ............................................................................................................................................ see page 45Hysteresis ...................................................................................................................................................... 25 %, +1 k Ω
isoPV1685P(FR) only:Measuring circuit for insulation fault location (EDS) Locating current IL DC .......................................................................................................................................... ≤ 50 mATest cycle/pause ......................................................................................................................................................... 2/4 s
isoPV1685PFR only:Measuring circuit for residual current measurementExternal measuring current transformer ................................................................. type Ferroxcube T140/120/25-3E25 Rated insulation voltage (measuring current transformer) ....................................................................................1500 VRated frequency.................................................................................................................................................. 1…6 kHzRated continuous thermal current Icth .......................................................................................................................150 ARelative uncertainty............................................................................................................................................. 0…35 %Load ............................................................................................................................................................................... 1 ΩNumber of turns of measurement winding.................................................................................................................... 20Number of turns of test winding .................................................................................................................................... 10
41isoPV1685-1685PFR_D00007_02_M_XXEN/10.2016
Technical data
isoPV1685PFR only:Response values for residual current measurement (AC instantaneous tripping)Rated residual operating current IΔn1 (prewarning) ................................................................................ 1…5 A (1 A)*Rated residual operating current IΔn2 (alarm) .......................................................................................... 1…5 A (5 A)*Relative uncertainty ................................................................................................................................................... ± 1 AResponse time tan ...................................................................................................................................................... ≤ 1 sHysteresis..................................................................................................................................................................... 25 %
isoPV1685PFR only:Cable lengths for measuring current transformersCable length ............................................................................................................................................................. ≤ 3 m
isoPV1685PFR only:Test windingOutput voltage across kT/lT at max. 40 mA locating current ......................................................................... 0.5…0.8 V
Displays, memoryLEDs for alarms and operating states ................................................................................................ 2x green, 4 x yellowμSD card (spec. 2.0) for history memory and log files (isoPV1685P(FR) only) ............................................. ≤ 32 GByte
InputsDigital inputs DigIn1/DigIn2: High level ........................................................................................................................................................... 10…30 VLow level ............................................................................................................................................................ 0…0.5 V
Serial interfacesBMS:Interface/protocol ........................................................................................................................................ RS-485 / BMSConnection terminals A/BCable length ...................................................................................................................................................... ≤ 1200 mShielded cable (shield to functional earth on one end)..................................... 2-core, ≥ 0.6 mm2, z. B. J-Y(St)Y2x0.6Shield ................................................................................................................................................................... terminal STerminating resistor, can be connected (term. RS-485) ............................................................................ 120 Ω (0.5 W)Device address, BMS bus ................................................................................................................................ 2…33 ( 2)*CAN:Protocol ................................................................................................................. acc. to SMA/Bender specification V2.2Frame format ............................................................................................................................ CAN 2.0A 11-bit identifier Baud rate ............................................................................................................................................................. 500 kbit/sConnection via 2 x RJ45 acc. to CiA-303-1 connected in parallel ................................................................ Pin 1: CAN-H......................................................................................................................................................................... Pin 2: CAN-L............................................................................................................................................................... Pin 3, 7: CAN-GNDCAN identifier permanently set acc. to the specification aboveCable length ......................................................................................................................................................... ≤ 130 mShielded cable ................................................................................................................................... CAT 5 with RJ45 plugTerminating resistor, can be connected (term. CAN) ................................................................................. 120 Ω (0.5 W)Potential of the socket housing ................................................................................................ functional earth-potential
Switching elementsSwitching elements ........... 3 changeover contacts: K1 (insulation fault), K2 (residual current fault), K3 (device error)Operating principle K1, K2 ............................................... N/C operation n.c. /N/O operation n.o. (N/C operation n.c.)*Operating principle K3 ........................................................................................ N/C operation n.c., cannot be changed Contact data acc. to IEC 60947-5-1:Utilisation category .......................................................................... ..... AC 13...... AC 14 .... DC-12 .... DC-12 .... DC-12Rated operational voltage ................................................................ ..... 230 V..... 230 V ....... 24 V .... 110 V ..... 220 VRated operational current ................................................................. ......... 5 A.......... 3 A ......... 1 A ..... 0.2 A ...... 0.1 AMinimum contact rating ................................................................................................................ 1 mA at AC/DC ≥ 10 V
42 isoPV1685-1685PFR_D00007_02_M_XXEN/10.2016
Technical data
For UL application:Utilisation category for AC control circuits with 50/60 Hz (Pilot duty) .................................................................... B300AC load of the alarm relay outputs ....................................................... AC 240 V, 1.5 A in case of a power factor of 0.35AC load of the alarm relay outputs .......................................................... AC 120 V, 3 A in case of a power factor of 0.35AC load of the alarm relay outputs ............................................ AC 250 V, 8 A in case of a power factor of 0.75 to 0.80DC load of the alarm relay outputs ............................................................................. DC 30 V, 8 A in case of ohmic load
Connection (except system coupling)Connection type................................................................................................................ pluggable push-wire terminalsConnection, rigid/flexible............................................................................................. 0.2…2.5 mm2 / 0.2…2.5 mm2
Connection flexible with connector sleeve, without/with plastic sleeve .............................................. 0.25…2.5 mm2
Conductor sizes (AWG) ......................................................................................................................................... 24…12
Connection of the system couplingConnection type................................................................................................................ pluggable push-wire terminalsConnection, rigid/flexible................................................................................................. 0.2…10 mm2 / 0.2…6 mm2
Connection, flexible with ferrules, without/with plastic sleeve ................................... 0.25…6 mm2/ 0.25…4 mm2
Conductor sizes (AWG) ........................................................................................................................................... 24…8Stripping length........................................................................................................................................................ 15 mmOpening force ................................................................................................................................................... 90…120 N
Environment/EMCEMC .................................................................................................................................................. IEC 61326-2-4 Ed. 1.0Classification of climatic conditions acc. to IEC 60721:Without solar radiation, precipitation, water, icing. Condensation possible temporarily:Stationary use (IEC 60721-3-3) .................................................................................................................................... 3K5Transport (IEC 60721-3-2)............................................................................................................................................ 2K3Long-time storage (IEC 60721-3-1)............................................................................................................................. 1K4Classification of mechanical conditions acc. to IEC 60721:Stationary use (IEC 60721-3-3) ...................................................................................................................................3M4Transport (IEC 60721-3-2)........................................................................................................................................... 2M2Long-term storage (IEC 60721-3-1) ........................................................................................................................... 1M3Deviation from the classification of climatic conditions:Ambient temperature, during operation................................................................................................... -40…+ 70 °CAmbient temperature transport ................................................................................................................ -40…+ 80 °CAmbient temperature, during long-time storage .................................................................................... -25…+ 80 °CRelative humidity ........................................................................................................................................... 10…100 %Atmospheric pressure......................................................................................... 700…1060 hPa (max. height 4000 m)
OtherOperating mode ................................................................................................................................ continuous operationPosition of normal use..................................................................................................... vertical, system coupling on topPCB fixation............................................................................................................................. lens head screw DIN7985TXTightening torque..................................................................................................................................................... 4.5 NmDegreee of protection, internal components............................................................................................................... IP30Degree of protection, terminals ................................................................................................................................... IP30Software version, isoPV1685 .......................................................................................................................... D409 V2.0xSoftware version, isoPV1685P ........................................................................................................................ D525 V2.0xSoftware version, isoPV1685PFR ..................................................................................................................... D366 V1.0xWeight .................................................................................................................................................................. ≤ 1300 g( )* = factory setting
43isoPV1685-1685PFR_D00007_02_M_XXEN/10.2016
Technical data
8.2 Standards, approvals and certificationsThe isoPV1685 was designed according to the following standards: - DIN EN 61557-8 (VDE 0413-8) - IEC 61557-8 - IEC 61557-9 - IEC 61326-2-4 - IEC 60730-1- DIN EN 60664-1 (VDE 0110-1)- UL1998 (Software)
8.3 Ordering data
The data labelled with an * are absolute values
TypeResponse value
rangeSupply voltage
*Art. No.
isoPV1685-425 200 Ω…1 MΩ DC 18…30 V B91065603
isoPV1685P-425 200 Ω…1 MΩ DC 18…30 V B91065604
isoPV1685PFR-425 200Ω.…1 MΩ DC 18…30 V B91065600
44 isoPV1685-1685PFR_D00007_02_M_XXEN/10.2016
Technical data
8.4 Characteristic curves
8.4.1 The measurable leakage capacitance depends on the insulation resistance
8.4.2 Response time for insulation measurement
110100
1000
00505
55,0
Capacitance[μF]
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t res
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nce
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45isoPV1685-1685PFR_D00007_02_M_XXEN/10.2016
Technical data
10100
1000
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46 isoPV1685-1685PFR_D00007_02_M_XXEN/10.2016
Technical data
8.4.3 Response time for residual current measurement(isoPV1685PFR only)
0,5
0,550,
6
0,650,
7
0,750,
8
0,850,
9
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47isoPV1685-1685PFR_D00007_02_M_XXEN/10.2016
Technical data
8.4.4 Example of alarms stored in the history memory
Idx:
232
ID:3
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o CT
conn
ecte
d=1
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one
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:43
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=200
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9
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arm
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in
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ime
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nit
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est
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nd
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48 isoPV1685-1685PFR_D00007_02_M_XXEN/10.2016
INDEX
AAlarm LEDs 24Alarm messages 35Alarm relays K1, K2, K3 19
BBMS bus
- Alarm messages 35- Commissioning 33- MASTER 33- Number of bus nodes 32- Operating status messages 35- Protocol 32- set BMS address 24- Slave 33- terminate 31- wire 31
CCable routing through the measuring cur-
rent transformer 27CAN bus termination 36Characteristic curves 45commissioning flow chart 28, 29Connection of the device 26
DDescription of function 16Device features 15Dimension diagram 25DIP switches 23, 36Display and operating controls 35
EError codes 37
FFactory settings 28
HHistory memory 36
IInstallation of the device 25Insulation fault location 17Insulation monitoring 17
LLeakage capacitance 45Locating current injector 17
MMeasured value transmission to the con-
trol inputs of the inverter 20Micro-SD card 16
OOperating controls
- DIP switch 23Operating status messages 35Ordering information 44
PParameterisation of insulation fault loca-
tion 18PCB component layout 48Product description 15
RResetting error messages 36Residual current monitoring 18Response time
- Differential measurement method 47
- Insulation measurement 45RS-485 interface 31RS-485 network
- Correct arrangement 32- Wrong arrangement 32
SSafety instructions 7SD card 23Self test
- after connection to the supply volt-age 18
- Automatic 18- Manual 19
Service 48Set measurement speed 39Set permissible system leakage capaci-
tance 35Set system leakage capacitance 39Setting addresses 13Setting the maximum system leakage ca-
pacitance 39Standards 44Standby mode 19Start firmware update 36
TTechnical data 41Terminal diagram 26terminated RS-485 network 31Terminating resistor 31Termination 13
WWiring and termination of the BMS bus 31Wiring diagram 26Work activities on electrical installations
12
49isoPV1685-1685PFR_D00007_02_M_XXEN/10.2016
50
Bender GmbH & Co. KGP.O.Box 1161 • 35301 Grünberg • GermanyLondorfer Straße 65 • 35305 Grünberg • GermanyTel.: +49 6401 807-0 • Fax: +49 6401 807-259E-mail: [email protected] • www.bender.de
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