Bender ISOMETER isoPV with AGH-PV Manual
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Bender ISOMETER isoPV with AGH-PV Manual

Bender ISOMETER isoPV with AGH-PV Manual

Insulation monitoring device for unearthed it ac, ac/dc and dc systems for photovoltaic systems up to ac 793 v / dc 1100 v
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Manual
ISOMETER® isoPV
coupling device AGH-PV
Insulation monitoring device for unearthed
IT AC, AC/DC and DC systems
for photovoltaic systems up to AC 793 V / DC 1100 V
Software version: D351 V2.0
isoPV_D00024_00_M_XXDE/06.2015

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Summary of Contents for Bender ISOMETER isoPV with AGH-PV

  • Page 1 Manual ISOMETER® isoPV coupling device AGH-PV Insulation monitoring device for unearthed IT AC, AC/DC and DC systems for photovoltaic systems up to AC 793 V / DC 1100 V Software version: D351 V2.0 isoPV_D00024_00_M_XXDE/06.2015...
  • Page 2 All rights reserved. Londorfer Straße 65 • 35305 Grünberg • Germany Reprinting only with permission Tel.: +49 6401 807-0 • Fax: +49 6401 807-259 of the publisher. E-Mail: info@bender.de • www.bender.de Subject to change! Photos: Bender archives and bendersystembau archives.

  • Page 3: Table Of Contents

    Table of Contents 1. Safety instructions .................. 7 Intended use ......................7 1.1.1 Personnel ........................7 1.1.2 Hazards when handling the ISOMETER® isoPV ..........7 1.1.3 Note ..........................8 Explanations of symbols and notes ..............8 Directions for installation ..................9 2.
  • Page 4 Table of Contents 5. Operation and setting ................27 Display and operating elements ..............27 5.1.1 Display in standard mode ................... 28 5.1.2 Display in menu mode ..................28 5.1.3 Function buttons ....................29 Menu structure and menu mode ..............31 5.2.1 Navigation within the menu ................
  • Page 5 Table of Contents 5.7.1 Setting and activating the password ............. 45 5.7.2 PASSWORD diagram .................... 45 LANGUAGE Menu ....................46 5.8.1 Language setting ....................46 5.8.2 Language diagram ....................46 SERVICE menu ......................46 6. Serial interface ..................47 RS-485 interface with BMS protocol ............... 47 Topology RS-485 network ..................

  • Page 7: Safety Instructions

    IT systems   Use which deviates from or is beyond the scope of the intended use is considered non-compliant. The Bender companies shall not be liable for any losses or damage arising therefrom. Intended use also implies: compliance with all information in this operating manual and ...

  • Page 8: Note

    Safety instructions 1.1.3 Note Make sure that the operating voltage is correct! ® Prior to insulation and voltage tests, the ISOMETER must be disconnected from the power system for the duration of these tests. In order to check the proper connection of the device, it is recommended to carry out a functional test.

  • Page 9: Directions For Installation

    Safety instructions 1.3 Directions for installation Only one insulation monitoring device may be used in each intercon- nected IT system. When insulation or voltage tests are to be carried out, the device shall be isolated from the system for the test period. The terminals and KE have to be connected by a separate wire to the protective conductor (PE).
  • Page 10 Safety instructions For systems ≤ 30 kVA it is imperative that: the insulation resistance between the inverter input and the earth is at least 500 kΩ. For mains voltages greater than 500 V the formula below applies: 1kΩ • ---------- - V maxPV For systems >...

  • Page 11: Function

    Memory with real-time clock to store alarm messages with date   and time stamp BMS interface (Bender Measuring Device Interface) for communication   with other Bender devices (RS-485 galvanically isolated) Internal disconnection of the ISOMETER® (via control signal; terminals ...

  • Page 12: Features Agh-Pv

    Function 2.2 Features AGH-PV Coupling device required for ISOMETER® isoPV,   each AGH-PV is specially designed for the corresponding isoPV Nominal voltage range AC 0...793 V and DC 0...1100 V   DIN rail mounting   2.3 Product description ®...

  • Page 13: Measurement Profiles

    % and at least 1 kΩ above the actual response value. The fault memory behaviour can also be set in the "ISO SETUP“ menu, by selecting the submenu Memory: on/off. measurement method (Adaptive Measuring Pulse), a measurement method developed by Bender (Euro- pean Patent: EP 0 654 673 B1). 2.4.1 Measurement profiles...

  • Page 14: Self Test

    2. Press the test button terminals and KE and the earth (PE). 3. Switch the supply voltage off and on 1. Press the test button 2. Switch the supply voltage off and on Device error x Internal device error 3. Please contact Bender isoPV_D00024_00_M_XXDE/06.2015...

  • Page 15: Current Output For External Measuring Instrument

    Function If, for functional reasons, the supply voltage cannot be switched on and off, a reset of the sequence control system can be carried out by pressing the buttons "RESET", "MENU" and Test" sequentially. 2.4.3 Current output for external measuring instrument The isoPV utilises a current output electrically isolated from the device electronics and the RS-485 interface.

  • Page 16: Function Input F1/F2 For Connection Or Disconnection Of It Systems Being Monitored

    Function 2.4.6 Function input F1/F2 for connection or disconnection of IT systems being monitored ® The ISOMETER can be disconnected from the IT system and set to STANDBY mode with the function input F1/F2. If the input F1/F2 is bridged, the connections to the coupling device AK1/AK2 are switched off via internal coupling relays, the measur- ing function is stopped and the message "STANDBY"...
  • Page 17 Function isoPV_D00024_00_M_XXDE/06.2015...

  • Page 18: Isonet Function (Com Setup)

    Function 2.4.7 ISOnet function (COM SETUP) To activate this function, select "ISOnet=ON" in the COM SETUP menu. This func- tion is a type of scanning function. The BMS master with activated ISOnet function ® controls the ISOnet slave devices via the BMS bus. When the master ISOMETER finished one measuring cycle, the authorisation for insulation monitoring is passed on to the next higher BMS address.

  • Page 19: Commissioning Flow Chart (Threepart)

    3. Commissioning flow chart (threepart) Due to limitations of space, the three-part flow chart begins on the next page. isoPV_D00024_00_M_XXDE/06.2015...
  • Page 20 Commissioning flow chart (threepart) The encircled figures in the flow chart correspond to the figures in the legend to the wiring diagram. ® Commissioning of the ISOMETER isoPV_D00024_00_M_XXDE/06.2015...
  • Page 21 Commissioning flow chart (threepart) ® Commissioning of the ISOMETER isoPV_D00024_00_M_XXDE/06.2015...
  • Page 22 Commissioning flow chart (threepart) ® Commissioning of the ISOMETER isoPV_D00024_00_M_XXDE/06.2015...

  • Page 23: Installation And Connection

    4. Installation and connection 4.1 Installation of the isoPV In order to ensure compliance with prescribed temperature limit val- ues, install the isoPV and AGH-PV with a distance of at least 30 mm to all adjacent devices! The cable length of the connecting cables between the AGH-PV and isoPV must not exceed 0.5 m.
  • Page 24 Installation and connection isoPV_D00024_00_M_XXDE/06.2015...
  • Page 25 Installation and connection Legend wiring diagram: Supply voltage U (see nameplate) via 6 A fuse; For UL and CSA applications, the use of 5 A fuses is mandatory. 2, 3 Connection to the 3 AC system to be monitored: Connect the terminals L1, L2 to neutral conductor N or terminals L1, L2 to conductor L1, L2.
  • Page 26 Installation and connection isoPV_D00024_00_M_XXDE/06.2015...

  • Page 27: Operation And Setting

    5. Operation and setting 5.1 Display and operating elements "INFO" button: to query standard information/ESC button: back (menu function), to confirm parameter change "TEST" button: to call up the self test/arrow up button: parameter change, to move up in the menu "RESET"...

  • Page 28: Display In Standard Mode

    Operation and setting 5.1.1 Display in standard mode Indication of the insulation resistance in kΩ Additional information about the insulation resist- ance: „+“ = Insulation fault at L+ „–“ = Insulation fault at L– „s" = New measurement is being started = Polarity of the measuring pulse, = Valid BMS bus communication, H = New entry in the memory data base...

  • Page 29: Function Buttons

    COM-Setup (isoPV's own bus address)   Please have the details above on hand if you have a problem and if you contact Bender for technical questions. Press the "TEST" button to start the self test of the ® ISOMETER Press the "RESET"...
  • Page 30 Operation and setting For menu control, the arrow buttons, Enter button and the ESC button are used: Up button: To move up in the menu, to increase the parameter value Down button: To move down in the menu, to decrease the parameter value Enter button To select a menu item or sub menu item, confirm or store a parameter change and to return to the associated sub menu item or skip to the...

  • Page 31: Menu Structure And Menu Mode

    Operation and setting 5.2 Menu structure and menu mode How to access the menu mode Press the "MENU" button to switch from the standard mode to the menu mode and to the main menu. From here you can branch to the different submenus. 5.2.1 Navigation within the menu Use the Up and Down buttons to select the appropriate menu item.

  • Page 32: Diagram Menu Structure

    Operation and setting 5.2.4 Diagram menu structure isoPV_D00024_00_M_XXDE/06.2015...

  • Page 33: Menu History Info

    Operation and setting 5.3 Menu HISTORY INFO 99 events with date and time stamp can be stored in the memory database. The da- tabase is designed as a ring memory, i.e. the eldest entry is overwritten. Data is writ- ten into a non-volatile memory and therefore is protected against voltage failure. To store the events with the actual date and time stamp, you need to set the real-time clock in the ISO ADVANCED menu first.

  • Page 34: Diagram History Info

    Operation and setting 5.3.1 Diagram HISTORY INFO isoPV_D00024_00_M_XXDE/06.2015...

  • Page 35: Menu Iso Setup: Setting Of The Basic Isometer Functions

    Operation and setting 5.4 Menu ISO SETUP: Setting of the basic ISOMETER functions This menu is used to set the alarm functions Alarm1 and Alarm2 (prewarning and alarm), the operating principle of the alarm relay K1 and K2 (N.O = N/O operation, N.C = N/C operation), the fault storage behaviour and a se- lection of two current output ranges.
  • Page 36 Operation and setting ISO SETUP diagram isoPV_D00024_00_M_XXDE/06.2015...

  • Page 37: Memory Setting (On/Off)

    Operation and setting alarm relay switches and the LED flashes in the event of (the an alarm message at approx. 0.5 Hz) During the automatic self test, the alarm relays are not switched over. When a device error occurs at the ISOMETER, the relay K2 will auto- matically be activated as a device error relay.
  • Page 38 Operation and setting For UL-applications: The analogue output as such is not a “safe alarm” indication in compliance with UL1998. If the analogue output is intended to be used as a “safe alarm”: – the relay output (at least K1 or K2) must additionally be used to provide redundancy –...

  • Page 39: Menu Iso Advanced: Setting Of The Extended Functions

    Operation and setting 5.5 Menu ISO ADVANCED: Setting of the extended functions 5.5.1 External coupling device (AGH: PV) Use the isoPV only in combination with the coupling device AGH-PV. The menu set- ting AGH:PV is pre-defined. The current software version does not allow other set- tings.
  • Page 40 Operation and setting Setting the parameter e max 150μF 500μF 2000μF Response time Response time Response time (acc. to IEC Profile 61557-8) Description setting = 1kΩ = 1kΩ = 1kΩ = 1μF = 200μF = 2000μF DC measurement DC measurement Standard measurement method permis- method permis-...

  • Page 41: Setting The Repetition Time For The Automatic Self Test (Autotest: 24H)

    Operation and setting 5.5.4 Setting the repetition time for the automatic self test (Autotest: 24h) The time for the repetition of automatic self tests can either be set to 1 hour or to 24 hours or can be deactivated. Factory setting = 24 h 5.5.5 Setting the real-time clock (Clock) The time setting is the time base for the memory and the automatic self test.

  • Page 42: Diagram Iso Advanced

    Operation and setting 5.5.8 Diagram ISO ADVANCED isoPV_D00024_00_M_XXDE/06.2015...

  • Page 43: Menu Com Setup: Setting The Bms Interface

    Operation and setting 5.6 Menu COM SETUP: Setting the BMS interface 5.6.1 Bus address "Addr:" This menu is used to set the BMS bus address for isoPV. Take care that the bus ad- dress is not assigned twice. The device is factory set to address 3 and hence operates as a slave. If several isoPVs are operated on one BMS bus, the addresses of other ®...

  • Page 44: Diagram Com Setup

    Operation and setting 5.6.4 Diagram COM SETUP isoPV_D00024_00_M_XXDE/06.2015...

  • Page 45: Password Menu

    Operation and setting 5.7 PASSWORD menu 5.7.1 Setting and activating the password This menu can be used to activate a "Password" query. This protects the ® ISOMETER against unauthorised settings and modifications. Set the desired password using the UP/DOWN buttons (menu item "2. Password: xxx") and confirm the setting with the ENTER button.

  • Page 46: Language Menu

    5.8.2 Language diagram 5.9 SERVICE menu This menu item is intended for the Bender service personnel and protected by a password against erroneous settings. It is intended for fast fault clearance by qual- ified experts in the event of a device error.

  • Page 47: Serial Interface

    6. Serial interface 6.1 RS-485 interface with BMS protocol The RS-485 interface electrically isolated from the device electronics and the cur- rent output serves as a physical transmission medium for the BMS protocol. If sev- eral isoPV or other bus-capable devices are interconnected in a network via the BMS bus, the BMS bus must be terminated at both ends with a 120 Ω...

  • Page 48: Topology Rs-485 Network

    (z.B. J-Y(St)Y 2x0.6), 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. isoPV_D00024_00_M_XXDE/06.2015...

  • Page 49: Bms Protocol

    Serial interface 6.3 BMS protocol This 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) ...

  • Page 50: Bms Slave

    Serial interface 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 ...

  • Page 51: Commissioning Of An Rs-485 Network With Bms Protocol

    Serial interface The following table gives an overview about essential alarm messages and the as- signment of the messages indicated on the display or alarm indicator and test com- binations, e.g. MK800. Messages Channel Note Insulation Fault Insulation resistance < setting value Alarm 1 Insulation Fault Insulation resistance <...
  • Page 52 Serial interface BMS bus address ranges (internal bus) Addresses* Device Note There is no device with address 0 !. Information sent to address 0 applies to all devices connected to the interfaces (broadcast) IRDH275B/ 1...30 375B/575; Insulation monitoring devices isoPV 1...30 FTC4...

  • Page 53: Coupled Pv Generators (Application Example)

    7. Coupled PV generators (application example) isoPV_D00024_00_M_XXDE/06.2015...
  • Page 54 Coupled PV generators (application example) isoPV_D00024_00_M_XXDE/06.2015...

  • Page 55: Technical Data Isopv With Agh-Pv

    8. Technical data isoPV with AGH-PV 8.1 Data in tabular form isoPV The values marked with** are absolute values ()* = factory setting Insulation coordination acc. to IEC 60664-1 Rated insulation voltage for isoPV-3 ..................AC 250 V Rated impulse voltage/pollution degree..................6 kV / III Protective separation (reinforced insulation) between................
  • Page 56 Technical data isoPV with AGH-PV isoPV-327: Supply voltage U (also see nameplate)................DC 24...65 V Power consumption ........................≤ 6 VA Response values Response value R ......................0.2...100 k Ω (Alarm1) ......................4 k Ω Factory setting R ......................0.2...100 k Ω Response value R Factory setting R (Alarm2) ......................
  • Page 57 Technical data isoPV with AGH-PV Device address, BMS bus ......................1...30 ( 3)* Switching elements Switching elements......2 changeover contacts: K1 (Alarm 1), K2 (Alarm 2, device error) Operating mode K1, K2 ......N/C operation n.c. / N/O operation n.o. (N/O operation n.o.)* Contact data acc.
  • Page 58 Technical data isoPV with AGH-PV DIN rail mounting..................... DIN EN 60715 / IEC 60715 Screw mounting by means of support (see page 64)..............2 x M4 Flammability class........................UL94 V-0 Software version ........................D351 V2.0 Weight ............................< 510 g ()* = factory setting The values marked with** are absolute values isoPV_D00024_00_M_XXDE/06.2015...

  • Page 59: Technical Data In Tabular Form Agh-Pv

    Technical data isoPV with AGH-PV 8.2 Technical data in tabular form AGH-PV Insulation coordination acc. to IEC 60664-1 Rated insulation voltage......................AC 800 V Rated impulse voltage/pollution degree..................8 kV / 3 Voltage ranges Nominal system voltage U ............. AC, 3(N)AC 0...793 V, DC 0...1100 V Nominal frequency f ......................

  • Page 60: Standards, Approvals And Certifications

    Technical data isoPV with AGH-PV Weight ............................< 230 g 8.3 Standards, approvals and certifications ® The ISOMETER was designed in accordance with the following standards: - DIN EN 61557-8 (VDE 0413-8) - IEC 61557-8 - IEC 61326-2-4 - DIN EN 60664-1 (VDE 0110-1) - DIN EN 60664-3 (VDE 0110-3) isoPV_D00024_00_M_XXDE/06.2015...

  • Page 61: Characteristic Curves

    Technical data isoPV with AGH-PV 8.4 Characteristic curves Current output 0...20 mA [k:] 1000,00 Rsk=28kOhm Rsk=120kOhm 100,00 10,00 1,00 10,0 15,0 20,0 25,0 I[mA] = Insulation fault in kΩ = Centre scale in kΩ I = Current output in mA isoPV_D00024_00_M_XXDE/06.2015...
  • Page 62 Technical data isoPV with AGH-PV Current output 4...20 mA [k:] 1000,00 Rsk=28kOhm Rsk=120kOhm 100,00 10,00 1,00 10,0 15,0 20,0 25,0 I[mA] = Insulation fault in kΩ = Centre scale in kΩ I = Current output in mA isoPV_D00024_00_M_XXDE/06.2015...
  • Page 63 Technical data isoPV with AGH-PV Status number isoPV_D00024_00_M_XXDE/06.2015...
  • Page 64 Technical data isoPV with AGH-PV Dimension diagram enclosure isoPV DIN rail mounting according to DIN EN 60715 / IEC 60715   Screw fixing   by means of a plug-in trapezoidal support Order-No. B990056 Dimension diagram enclosure AGH-PV Illustration with terminal covers isoPV_D00024_00_M_XXDE/06.2015...

  • Page 65: Ordering Information

    Technical data isoPV with AGH-PV 8.5 Ordering information Nominal voltage Supply voltage Type Art.No. isoPV-327 3(N) AC 0...793 V DC 19,2...72 V B 9106 5132W DC 0...1100 V + AGH-PV consisting of: B 9106 5130W isoPV-327 B 9803 9020W AGH-PV isoPV-335 3(N) AC 0...793 V AC 88...264 V...
  • Page 66 Technical data isoPV with AGH-PV isoPV_D00024_00_M_XXDE/06.2015...

  • Page 67: Index

    Assigning the bus address for iso-PV 43 Automatic self test, setting 41 Factory setting 9 Flashing point 50 Function input F1/F2 16 Bender Measuring Device Interface (BMS) 49 BMS addresses 52 BMS master 49 History memory 33 BMS slave 50...
  • Page 68 INDEX - SERVICE 46 Menü Technical data 55 - ISO ADVANCED 39 terminated RS-485 network 47 - structure 32 Terminating resistor 47 Test button 27 Topology RS-485 network 48 Ordering information 65 wiring 48 Wiring diagram ISOMETER® 25 Product description 12 Querying the insulation value of other ISOMETERs Real-time clock 15 Reset button 13...
  • Page 70 Bender GmbH & Co. KG Londorfer Str. 65 • 35305 Grünberg • Germany Postfach 1161 • 35301 Grünberg • Germany Tel.: +49 6401 807-0 Fax: +49 6401 807-259 E-Mail: info@bender-de.com Web: http://www.bender-de.com...

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