Bender ISOMETER isoHV525 Manual
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Bender ISOMETER isoHV525 Manual

Bender ISOMETER isoHV525 Manual

Insulating monitoring device for unearthed ac, ac/dc, and dc systems it systems up to 3nac, ac/dc 0...1000 v or dc 0...1000 v
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Manual
ISOMETER® isoHV525
Insulating monitoring device for unearthed
AC, AC/DC, and DC systems (IT systems)
up to 3(N)AC, AC/DC 0...1000 V or DC 0...1000 V
Software versions: D0500 V1.xx
D0453 V1.xx
isoHV525_D00297_04_M_XXEN/05.2018

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  • Page 1 Manual ISOMETER® isoHV525 Insulating monitoring device for unearthed AC, AC/DC, and DC systems (IT systems) up to 3(N)AC, AC/DC 0...1000 V or DC 0...1000 V Software versions: D0500 V1.xx D0453 V1.xx isoHV525_D00297_04_M_XXEN/05.2018...
  • Page 2 Bender GmbH & Co. KG P.O. Box 1161 • 35301 Gruenberg • Germany Londorfer Str. 65 • 35305 Gruenberg • Germany Tel.: +49 6401 807-0 • Fax: +49 6401 807-259 E-mail: info@bender.de • www.bender.de © Bender GmbH & Co. KG All rights reserved.

  • Page 3: Table Of Contents

    Table of contents 1. Important information ................6 How to use this manual ................... 6 Technical support: Service and support ............ 7 1.2.1 First level support ....................7 1.2.2 Repair service ...................... 7 1.2.3 Field service ......................8 Training courses ....................8 Delivery conditions ...................
  • Page 4 Inhaltsverzeichnis 3.2.2 Function description ..................15 3.2.2.1 Manual self test ....................16 3.2.2.2 Malfunction ...................... 17 3.2.2.3 Signalling assignment of the alarm relays K1/K2 ....... 17 3.2.2.4 Measuring and response times ..............17 3.2.2.5 External, combined Test or reset button T/R ........18 3.2.2.6 Fault memory ....................
  • Page 5 Inhaltsverzeichnis 7. Data access to the isoHV525-S4-4 using the Modbus RTU protocol ................. 31 Reading the Modbus register from the ISOMETER® ......31 7.1.1 Master device sends a command to the ISOMETER® ......31 7.1.2 The ISOMETER®s answers the Master ............31 Writing to the Modbus register (parameter setting) ......

  • Page 6: Important Information

    1. Important information 1.1 How to use this manual This manual is intended for qualified personnel working in electrical engineering and electronics! To make it easier for you to understand and revisit certain sections in this manual, we have used symbols to identify important instructions and information. The meaning of these symbols is explained below: This signal word indicates that there is a high risk of danger that will result in death or serious injury if not avoided.

  • Page 7: Technical Support: Service And Support

      Delivery of replacement devices in the event of faulty or incorrectly delivered   Bender devices Extended warranty for Bender devices with in-house repair service or replace-   ment device at no extra cost Telephone: +49 6401 807-780** (technical issues)

  • Page 8: Field Service

    In the event of damage in transit, please contact Bender immediately. The 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.

  • Page 9: Warranty And Liability

    13th 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 -> Service & support.

  • Page 10: Safety Instructions

    2.1 General safety instructions Part of the device documentation in addition to this manual is the enclosed "Safety in- structions for Bender products". Work activities on electrical installations Only skilled persons are permitted to carry out the work necessary to install, commission and run a device or system.

  • Page 11: Intended Use

    Safety instructions 2.3 Intended use Only skilled persons are permitted to carry out the work necessary to install, commission and run a device or system. The isoHV525 ISOMETER® monitors the insulation resistance R of unearthed AC, AC/DC and DC systems (IT systems) with nominal system voltages of 3(N)AC, AC/DC 0 …...

  • Page 12: Function

    3. Function 3.1 isoHV525-M4-4 3.1.1 Features Monitoring the insulation resistance R for unearthed AC/DC systems   Automatic adaptation to the system leakage capacitance C up to 150 μF   Two separate response values for Alarm 1 and Alarm 2 ...

  • Page 13: Malfunction

    In addition to the described self test, several functions in the insulation monitoring de- vice are continuously checked during operation. If the error occurs again after restar- ting the device, then contact Bender Service. 3.1.2.3 Signalling assignment of the alarm relays K1/K2 Pre-alarm and test are assigned to relay 1 ("K1").

  • Page 14: Analogue Output

    Function 3.1.2.6 Analogue output The isoHV-M4-4 ISOMETER® outputs and analogue voltage in the range 0. . .10 V Setting Activation Description U 0 . . . 10 V 0 . . . 10 V, Permissible load > 20 kΩ The scaled reference value for thr displayed non- 120 kΩ...

  • Page 15: Isohv525-S4-4

    Fault memory can be activated.   RS-48 5 (galvanically isolated) with the following protocols:   – BMS interface (Bender measuring device interface) for data exchange with other Bender components – Modbus RTU – IsoData (for continuous data output) 3.2.2...

  • Page 16: Manual Self Test

    Test/Reset button is pressed or until the sup- ply voltage U is switched off. The device function can be tested using the Test/Reset button. Device parameters are initially assigned by Bender. Parameterisation of the ISO-  METER...

  • Page 17: Malfunction

    In addition to the described self test, several functions in the insulation monitoring de- vice are continuously checked during operation. If the error occurs again after restar- ting the device or after restoring the factory settings, please contact Bender Service. 3.2.2.3 Signalling assignment of the alarm relays K1/K2 Pre-alarm and test are assigned to relay 1 ("K1").

  • Page 18: External, Combined Test Or Reset Button T/R

    Function Delay-on release The delay on release t can be set uniformly for all messages using the parameter "toff", whereby each alarm message specified in the alarm assignment has its own timer for t . An alarm will continuously be signalled until the threshold value of the respec- tive measured value is not exceeded (including hysteresis) for the period of t without interruption.

  • Page 19: Interface/Protocols

    Interface/protocols The ISOMETER® uses the serial hardware interface RS-485 with the following protocols: The BMS protocol is an essential component of the Bender measuring device interface (BMS bus protocol). ASCII characters are used in the data transfer. The isoHV525-S4-4 ISOMETER® uses the device name "isoHV425" when it reports on the BMS bus.
  • Page 20 Function The parameter address, baud rate and parity for the interface protocols are configured via the RS-485 interface. With "Adr = 0", the IsoData protocol is activated. The parameter value "---" for the baud rate indicates the activated BMS protocol. In this case, the baud rate for the BMS protocol is set to 9,600 baud.

  • Page 21: Installation, Connection And Commissioning

    4. Installation, connection and commissioning Only skilled persons are permitted to carry out the work necessary to in- stall, 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 ...
  • Page 22 Installation, connection and commissioning 12.5 23.5 L2/- L1/+ Side view Bottom view Signal cables (Wires 1-11) Front view All dimensions are in mm isoHV525-M4-4: Connect the device as shown in the wiring diagram below. L1/+ L2/- 3 (E) 4 (E) 5 (KE) 1 (A1) 2 (A2) Test / Reset...
  • Page 23 Installation, connection and commissioning The lower temperature range applies only when the cable is firmly laid or installed. For details about the conductor cross sections required for wiring, refer to the technical data from Page Legend to the wiring diagram for isoHV525-M4-4: Wire number Terminal Connection...
  • Page 24 Installation, connection and commissioning isoHV525-S4-4: Connect the device as shown in the wiring diagram below L1/+ L2/- 3 (E) 4 (E) 5 (KE) 1 (A1) 2 (A2) Test / Reset ® ISOMETER L2/- L1/+ isoHV525-S4-4 isoHV525 Signal cables (Wires 1-11) Blue (L2/-) Red (L1/+) COM465IP 10 (14) 11 (24) 9 (11)

  • Page 25: Commissioning

    Installation, connection and commissioning Wire number Terminal Connection Connection to the supply voltage U via fuses (line protec- tion): If supplied from an IT system, both lines have to be protected by a fuse. 3 and 4 Connect each terminal separately to PE. Connection for the external combined Test/Reset button Serial communication interface Example: connection of a BMS Ethernet gateway COM465IP...

  • Page 26: Isohv525-S4-4 Parameter Overview

    5. isoHV525-S4-4 parameter overview 5.1 Setting the response value "R1" and "R2" are the two parameters that monitor the insulation resistance R .The va- lue R1 can only be set higher than the value R2. If the insulation resistance R reaches or falls below the activated values R1 or R2, this leads to an alarm message.

  • Page 27: Alarm Assignment "R1" And "R2

    isoHV525-S4-4 parameter overview " " " " 5.2.1 Alarm assignment In the alarm assignment, each notification/alarm is assigned to the corresponding relay with the setting "on". In the event of an unsymmetrical insulation fault, only the alarm corresponding to the assigned and affected conductor (L1/+ or L2/-) will be set. K1 „r1“...

  • Page 28: Interface Configuration

    isoHV525-S4-4 parameter overview 5.3 Interface configuration Available Setting Description Range BMS Modbus Adr = 0 deactivates BMS as well as Mod- bus and activates isoData with conti- 0 / 3 … 90 ) BusAdr. nuous data output (115k2, 8E1) “---“ -->...

  • Page 29: Function Configuration

    isoHV525-S4-4 parameter overview 5.5 Function configuration Para- Activation Description Available via meter BMS Modbus Test system connection during device test S.Ct Device test during device start FAC = Factory setting; Cs = Customer setting 5.6 Measured value description Description Insulation resistance 1 kΩ...

  • Page 30: Data Access To The Isohv525-S4-4 Using The Bms Protocol

    6. Data access to the isoHV525-S4-4 using the BMS protocol The BMS protocol is an essential component of the Bender measuring device interface (BMS bus protocol). ASCII characters are used in the data transfer. BMS channel no. Operation value Alarm...

  • Page 31: Data Access To The Isohv525-S4-4 Using The Modbus Rtu Protocol

    7. Data access to the isoHV525-S4-4 using the Modbus RTU protocol Requests to the ISOMETER® can be made using the function code 0x03 (read multiple registers) or the command 0x10 (write multiple registers). The ISOMETER® generates a function-related answer and sends it back. 7.1 Reading the Modbus register from the ISOMETER®...

  • Page 32: Writing To The Modbus Register (Parameter Setting)

    Data access to the isoHV525-S4-4 using the Modbus RTU protocol 7.2 Writing to the Modbus register (parameter setting) Registers in the device can be modified with the Modbus command 0x10 (set multiple registers). Parameter registers are available from address 3000. The content of the regis- ter is listed in the table Seite 7.2.1...

  • Page 33: Exception Code

    Data access to the isoHV525-S4-4 using the Modbus RTU protocol 7.3 Exception code If a request cannot be answered for whatever reason, the ISOMETER® will send a so- called exception code with which possible faults can be narrowed down. Exception code Description 0x01 Impermissible function...

  • Page 34: Isometer® Modbus Register Assignment

    8. ISOMETER® Modbus register assignment Depending on the device state, the information in the registers is either the measured value without alarm; the measured value with alarm 1; the measured value with alarm 2; or only the device fault. Measured value Register Device fault Without alarm...
  • Page 35 ISOMETER® Modbus register assignment Register Property Description Format Unit Value range 3000 Reserved 3001 Reserved 3002 Reserved 3003 Reserved 3004 Reserved Pre-alarm value resist- 3005 ance measurement UINT 16 kΩ R2 … 500 "R1" 3006 Reserved Alarm value resist- 3007 ance measurement UINT 16 kΩ...
  • Page 36 ISOMETER® Modbus register assignment Register Property Description Format Unit Value range 0 = 8N1 3017 Parity "Adr 2" UINT 16 1 = 8O1 2 = 8E1 Start-up delay "t" dur- 3018 UINT 16 0 …10 ing device start Response delay "ton" 3019 UINT 16 0 …...

  • Page 37: Device-Specific Data Type Of The Isometer

    ISOMETER® Modbus register assignment Register Property Description Format Unit Value range UNIT 16 (ASCII) - 9800 Device name refer to to 9809 Chapter 8 .1.1 Software Software D 9820 UINT 16 ID number number Software version 9821 UINT 16 Software version number 9822 Software version: Year UINT 16...

  • Page 38: Measured Value

    ISOMETER® Modbus register assignment 8.1.2 Measured value Each measured value is available as a channel and consists of 8 bytes (4 registers). The first measured value register address is 1000. The structure of a channel is always iden- tical. Content and number depend on the device. The structure of a channel is shown with the example of channel 1: 1000 1001...

  • Page 39: R&U = Range And Unit

    ISOMETER® Modbus register assignment Reserved … … … Reserved Reserved No test Internal test External test The alarm type is coded by the bits 0 to 2. Bits 3, 4 and 5 are reserved and always have the value 0. Bit 6 or 7 is set when an internal or external test has been completed. Other values are reserved.

  • Page 40: Alarm Assignment Of The Relays

    ISOMETER® Modbus register assignment The units of bits 0 to 4 are coded.   Bits 6 and 7 describe the validity range of a value.   Bit 5 is reserved.   The complete byte is calculated from the sum of the unit and the range of validity. 8.1.3 Alarm assignment of the relays Several alarms can be assigned to each relay.

  • Page 41: Channel Description

    ISOMETER® Modbus register assignment 8.2 Channel description Measured value description/alarm Note Value message operating message 1 (0x01) Insulation fault 71 (0x47) Insulation resistance R in Ω Insulation fault Voltage Measured value in V 76 (0x4C) 77 (0x4D) Undervoltage 78 (0x4E) Overvoltage 82 (0x52) Capacitance...
  • Page 42 ISOMETER® Modbus register assignment To convert parameter data, data type descriptions are required. Text representation is not necessary in this case. Value Description of parameters Parameter/measured value invalid. 1023 (0x3FF) The menu item of this parameter is not displayed. 1022 (0x3FE) No measured value/no message 1021 (0x3FD) Measured value/parameter inactive...

  • Page 43: Isodata Data String

    9. IsoData data string In IsoData mode, the ISOMETER® continuously sends the entire data string with a cycle time of approximately 1 second. Communication with the ISOMETER® in this mode is not possible and no additional sender may be connected to the RS-485 bus cable. IsoData is activated by setting Adr = 0.

  • Page 44: Technical Data

    10. Technical data 10.1 Tabular representation ( )* = Factory settings Insulation coordination acc. to IEC 60664-1/IEC 60664-3 Definitions: Measuring circuit (IC1) ............................L1/+, L2/- Supply circuit (IC2) ............................A1, A2 Output circuit (IC3)............................11, 14, 24 Control circuit (IC4)......................E, KE, T/R, M+(A), M-(B) Rated voltage ................................
  • Page 45 Measuring current I bei R ............................120 μA Internal resistance R ..............................390 kΩ Response values ISOMETER isoHV525-S4-4: Response value R ..........................11…500 kΩ (50 kΩ)* Response value R ........................... 10…490 kΩ (25 kΩ)* Relative uncertainty R ........................±15 %, at least ±3 kΩ...
  • Page 46 Operating uncertainty ......................... ±15 %, at least ±2 μF Password ..............................off/0…999 (0, off)* Fault memory alarm messages ..........................on/(off)* ISOMETER isoHV525-M4-4: Insulation resistance measured value range (R )....................1 kΩ…4 MΩ Operating uncertainty ........................±15 %, at least ±3 kΩ...
  • Page 47 Technical data Storage ................................-55…+70 ºC Classification of climatic conditions acc. to IEC 60721: Stationary use (IEC 60721-3-3) ............................3K8 Transport (IEC 60721-3-2)..............................2K4 Long-term storage (IEC 60721-3-1)..........................1K6 Classification of mechanical conditions acc. to IEC 60721: Stationary use (IEC 60721-3-3) ............................3M7 Transport (IEC 60721-3-2)..............................

  • Page 48: Standards, Approvals And Certifications

    Technical data 10.2 Standards, approvals and certifications The ISOMETER® has been developed in compliance with the following standards: EN 61557-8 (VDE 0413-8): 2015-12/Ber1: 2016-12   EN 50155: 2008-03   IEC 61557-8: 2014/COR1: 2016   EN 45545-2: 2013 + A1: 2015 (for cable only) ...
  • Page 49 Technical data isoHV525_D00297_04_M_XXEN/05.2018...
  • Page 50 Index - Malfunction 17 - Manual self test 16 Commissioning 25 - Measured value description 29 Connecting the device 21 - Measuring time 17 - Operating time 17 - Parameter overview 26 Function 12 - Relay alarm assignment 27 - Relay operating mode, configuration 26 - Response delay 17 - Response time 17 Installation 21...
  • Page 52 Bender GmbH & Co. KG P.O. Box 1161 • 35301 Gruenberg • Germany Londorfer Str. 65 • 35305 Gruenberg • Germany Tel.: +49 6401 807-0 • Fax: +49 6401 807-259 E-mail: info@bender.de • www.bender.de © Bender GmbH & Co. KG All rights reserved.

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