Bender ISOMETER isoUG425 Manual
  1. Manuals
  2. Brands
  3. Bender Manuals
  4. Measuring Instruments
  5. ISOMETER isoUG425
  6. Manual

Bender ISOMETER isoUG425 Manual

Insulation monitoring device for earth fault detection in unearthed dc systems up to 120 v software version: d0476 v2.xx
Hide thumbs Also See for ISOMETER isoUG425:
Table of Contents

Advertisement

Quick Links

Download this manual
Manual EN
ISOMETER® isoUG425
Insulation monitoring device for earth fault detection
in unearthed DC systems up to 120 V
Software version: D0476 V2.xx
isoUG425_D00220_04_M_XXEN/10.2023

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the ISOMETER isoUG425 and is the answer not in the manual?

Questions and answers

Related Manuals for Bender ISOMETER isoUG425

Summary of Contents for Bender ISOMETER isoUG425

  • Page 1 Manual EN ISOMETER® isoUG425 Insulation monitoring device for earth fault detection in unearthed DC systems up to 120 V Software version: D0476 V2.xx isoUG425_D00220_04_M_XXEN/10.2023...
  • Page 2 isoUG425_D00220_04_M_XXEN/10.2023...

  • Page 3: Table Of Contents

    Indication of important instructions and information...............5 Signs and symbols............................5 Service and Support............................5 Training courses and seminars........................6 Delivery conditions............................6 Inspection, transport and storage......................6 Warranty and liability.............................6 Disposal of Bender devices..........................7 1.10 Safety..................................7 Function.......................8 Intended use..............................8 Device features..............................8 Function description............................8 2.3.1...
  • Page 4 Table of contents Operating and display elements......................18 Menu overview...............................20 Displaying measured values........................21 Setting the response values (AL)......................21 4.4.1 Setting the response values for monitoring the insulation resistance........21 4.4.2 Setting the response values for undervoltage and overvoltage..........22 4.4.3 Response values overview.........................22 Configuring fault memory, alarm relays, and interfaces (out)............22 4.5.1 Configuring the relays..........................22...

  • Page 5: General Information

    Protect from dust Temperature range Recycling RoHS directives Service and Support Information and contact details about customer service, repair service or field service for Bender devices are available on the following website: Fast assistance | Bender GmbH & Co. KG. isoUG425_D00220_04_M_XXEN/10.2023...

  • Page 6: Training Courses And Seminars

    Regular face-to-face or online seminars for customers and other interested parties: www.bender.de > know-how > seminars. Delivery conditions The conditions of sale and delivery set out by Bender GmbH & Co. KG apply. These can be obtained in printed or electronic format. The following applies to software products: ‘Software clause in respect of the licensing of standard software as part of deliveries,...

  • Page 7: Disposal Of Bender Devices

    ISOMETER® isoUG425 Disposal of Bender devices Abide by the national regulations and laws governing the disposal of this device. For more information on the disposal of Bender devices, refer to www.bender.de > service & support. 1.10 Safety If the device is used outside the Federal Republic of Germany, the applicable local standards and regulations must be complied with.

  • Page 8: Function

    • Two separately adjustable response value ranges 1…100 k (prewarning, alarm) • RS-485 (galvanically isolated) including the following protocols: – BMS (Bender measuring device interface) for the data exchange with other Bender devices – Modbus RTU – IsoData (for continuous data output) •...

  • Page 9: Monitoring The Insulation Resistance

    ISOMETER® isoUG425 It is possible to assign the detected fault or the faulty conductor to an alarm relay via the menu. If the values R or U violate the response values activated in the “AL” menu, this will be indicated by the LEDs and relays “K1” and “K2”...

  • Page 10: Malfunction

    (“Err”) is signalled, “E.xx” appears on the display as an identifier for error type xx, and the LEDs “ON”/“AL1”/“AL2” flash. Please contact Bender Service, if the error occurs again after the device has been restarted or the factory settings have been restored.

  • Page 11: Alarm Assignment Of The Alarm Relays K1/K2

    ISOMETER® isoUG425 2.3.5 Alarm assignment of the alarm relays K1/K2 The notifications for “device error”, “insulation fault”, “undervoltage/overvoltage fault”, “device test” and “device start with alarm” can be assigned to the alarm relays via the “out” menu. An insulation fault is indicated by these messages: •...

  • Page 12: Password Protection (On, Off)

    Function Delay on release t The delay on release t can be set uniformly for all alarm messages using the parameter “toff”, while each alarm message specified in the alarm assignment has its own timer for t An alarm message will be signalled until the limit value of the respective measured value is no longer violated (including hysteresis) for the duration of t without interruption.

  • Page 13: 2.3.11 History Memory His

    The ISOMETER® uses the serial hardware interface RS-485 with the following protocols: • BMS The BMS protocol is an essential component of the Bender measuring device interface (BMS bus protocol). Data transmission generally makes use of ASCII characters. • Modbus RTU Modbus RTU is an application layer messaging protocol, and it provides master/slave communication between devices that are connected via bus systems and networks.

  • Page 14: Installation, Connection And Commissioning

    Installation, connection and commissioning Installation, connection and commissioning Dimensions 45 70.5 31.1 47.5 74.5 Figure: Dimension diagram (in mm) Installation Click! & 2 x Ø M4 Click! Figure: DIN rail mounting (left) or screw mounting (right) isoUG425_D00220_04_M_XXEN/10.2023...

  • Page 15: Connection

    ISOMETER® isoUG425 Connection DANGER Risk of fatal injury due to electric shock! Touching live parts of the system carries the risk of: • Risk of electrocution due to electric shock • Damage to the electrical installation • Destruction of the device Before installing the device and before working on its connections, make sure that the installation has been de-energised.

  • Page 16: Commissioning

    Installation, connection and commissioning Legend to wiring diagram Terminal Connections A1, A2 Connection to the supply voltage U via fuse (line protection): If supplied from an IT system, protect both lines by a fuse.* E, KE Separate connection to PE: Use same wire cross section as for “A1”, “A2”.
  • Page 17 ISOMETER® isoUG425 Check the functionality by a real insulation fault. Use a suitable resistor to check the ISOMETER® against earth in the system being monitored. isoUG425_D00220_04_M_XXEN/10.2023...

  • Page 18: Operation

    Operation Operation Operating and display elements Device front Operating elements Function Power LED AL1 AL2 Alarm LEDs (For codes see “Assigning the alarm messages to the relays”, page 22.) Up and down buttons – For navigating up or down in the menu settings.
  • Page 19 ISOMETER® isoUG425 Display Display elements Function System voltage U Insulation resistance R System leakage capacitance C Monitored conductors L1 L2 L1 = L+ L2 = L– Voltage type DC Pulse symbol: error-free measured value update Voltage type AC °C Measured values and units μ...

  • Page 20: Menu Overview

    Operation Menu overview Measurement display Menu selection Parameter selection > < 1.5 s > > . . . 1.5 s 1.5 s < t > 5 min < > 1.5 s R [k ] Password (optional) C [µF] U L1 L2 [V] U L1 [V] <...

  • Page 21: Displaying Measured Values

    ISOMETER® isoUG425 Displaying measured values Overview Display Description Insulation resistance R ✓ 1 k … 1 M System voltage U (L+ - L–) ✓ nRMS U L1 L2 = ~V 0…150 V System voltage U (L+ - L–) ✓ U L1 L2 = V DC 0…150 V Residual voltage U (L+ - PE)

  • Page 22: Setting The Response Values For Undervoltage And Overvoltage

    Operation 4.4.2 Setting the response values for undervoltage and overvoltage How to proceed Open menu “AL”. Select parameter “U<” for undervoltage or parameter “U>” for overvoltage. Set value and confirm with Enter. 4.4.3 Response values overview Display Activation Setting value Description Range Prewarning value R...

  • Page 23: Activating Or Deactivating Fault Memory

    ISOMETER® isoUG425 K1 “r1” K2 “r2” LEDs Description Display Display 1 Err 2 Err Device error E.xx Prewarning R1 +R1 < +R1 < Fault R at L+ Prewarning R1 –R1 < –R1 < Fault R at L– Alarm R2 +R2 < +R2 <...

  • Page 24: Configuring Interface

    Operation 4.5.4 Configuring interface Display Setting value Description Range Adr = 0 deactivates BMS as well as Modbus 0 / 3…90 Bus Adr. and activates isoData with continuous data output (115k2, 8E1) “---”: BMS bus (9k6, 7E1) Adr 1 “---” ) Baud rate 1.2k…115k “1.2k”...

  • Page 25: Setting Device Control Parameters (Set)

    1...50 capacitance C S.Ct Device test at device start Restore factory settings For Bender Service only FAC Factory settings Customer settings Reset to factory settings All settings with the exception of the interface parameters are reset to the factory settings.

  • Page 26: Data Access Via Rs-485 Interface

    Data access via RS-485 interface Data access via RS-485 interface Data access using the BMS protocol The BMS protocol is an essential component of the Bender measuring device interface (BMS bus protocol). Data transmission generally makes use of ASCII characters. BMS channel no.

  • Page 27: Writing The Modbus Register (Parameter Setting)

    ISOMETER® isoUG425 Command of the master to the ISOMETER® In the following example, the master of the ISOMETER® requests the content of register 1003 using address 3. The register contains the channel description of measuring channel 1. Byte Name Example Byte 0 ISOMETER®...

  • Page 28: Exception Code

    Data access via RS-485 interface Response of the ISOMETER® to the master Byte Name Example Byte 0 ISOMETER® Modbus address 0x03 Byte 1 Function code 0x10 Byte 2, 3 Start register 0x0BBB Byte 4, 5 Number of registers 0x0001 Byte 6, 7 CRC16 checksum 0x722A 5.2.3...

  • Page 29: Modbus Register Assignment

    ISOMETER® isoUG425 Modbus register assignment 5.3.1 Modbus measured value registers Depending on the device condition, the information in the registers is the measured value without alarm, the measured value with alarm 1, the measured value with alarm 2, or the device error. For more information see , page 30.
  • Page 30 Data access via RS-485 interface 5.3.1.2 Float = Floating point value of the channels Representation of the bit order for processing analogue measured values according to IEEE 754 Word 0x00 0x01 Byte HiByte LoByte HiByte LoByte 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 exponent mantissa sign...
  • Page 31 ISOMETER® isoUG425 5.3.1.4 R&U = Range and unit Meaning Unit Invalid (init) No unit Baud °C °F Second Minute Hour Month Range of validity Actual value The actual value is lower The actual value is higher Invalid value • Bits 0 to 4: coding for the unit •...

  • Page 32: Modbus Parameter Register

    Data access via RS-485 interface 5.3.1.5 Channel descriptions Value Description of measured value / message Comments 1 (0x01) Insulation fault 71 (0x47) Insulation fault Insulation resistance R 76 (0x4C) Voltage Measured value in V 77 (0x4D) Undervoltage 78 (0x4E) Overvoltage 82 (0x52) Capacitance Measured value in F...
  • Page 33 ISOMETER® isoUG425 Register Property Description Format Unit Value range 3011 Alarm value overvoltage DC “U>” UINT 16 1/10 V U< … 1440 0 = off Memory function for alarm 3012 UINT 16 messages (fault memory) “M” 1 = on 0 = n/o 3013 Operating mode of relay K1 “r1”...
  • Page 34 Data access via RS-485 interface Register Property Description Format Unit Value range 3027 Alarm assignment of relay K1 “r1” UINT 16 Bit 9 … Bit 1 3028 Alarm assignment of relay K2 “r2” UINT 16 Bit 9 … Bit 1 8003 Factory settings for all parameters UINT 16...
  • Page 35 ISOMETER® isoUG425 Display indication Meaning rx test Manually started self test rx S.AL Device start with alarm When reading: 0 Reserved When writing: any value When reading: 0 Reserved When writing: any value When reading: 0 12…15 Reserved When writing: any value 5.3.2.3 Device name The data format of the device name consists of ten Words with two ASCII characters each.

  • Page 36: Isodata Data String

    Data access via RS-485 interface IsoData data string In IsoData mode the ISOMETER® sends the entire data string roughly once per second. Communication with the ISOMETER® in this mode is not possible and no additional sender may be connected via the RS-485 bus cable.

  • Page 37: Technical Data

    ISOMETER® isoUG425 Technical data Technical data isoUG425 ( )* = factory setting Insulation coordination acc. to IEC 60664-1/-3 Definitions Measuring circuit (IC1) L+, L– Supply circuit (IC2) A1, A2 Output circuit (IC3) 11, 14, 24 Control circuit (IC4) E, KE, T/R, A, B Rated voltage 400 V Overvoltage category...
  • Page 38 Technical data Supply voltage Supply voltage U AC 100…240 V DC 24…240 V Tolerance of U –30…+15 % Frequency range of U 47…63 Hz Power consumption ≤ 3 W, ≤ 9 VA Monitored IT system Nominal system voltage U DC 12…120 V Tolerance of U +20 % Measuring circuit...
  • Page 39 ISOMETER® isoUG425 Displays, memory Display LC display, multi-functional, not illuminated Display range measured value insulation resistance (R 1 k … 1 M Operating uncertainty R ±15 %, at least ±2 k Display range measured value system voltage (U 0…150 V (R =∞...

  • Page 40: Connection

    Technical data Environment/EMC IEC 61326-2-4 Ambient temperatures Operation –40…+70 ºC Transport –40…+85 ºC Storage –40…+70 ºC Climatic class acc. to IEC 60721 Stationary use (IEC 60721-3-3) 3K22 Transport (IEC 60721-3-2) 2K11 Long-time storage (IEC 60721-3-1) 1K21 Classification of mechanical conditions acc. to IEC 60721 Stationary use (IEC 60721-3-3) 3M11 Transport (IEC 60721-3-2)

  • Page 41: Standards And Certifications

    EU Declaration of Conformity Hereby, Bender GmbH & Co. KG declares that the device covered by the Radio Directive complies with Directive 2014/53/EU. The full text of the EU Declaration of Conformity is available at the following Internet address: https://www.bender.de/fileadmin/content/Products/CE/CEKO_isoXX425.pdf...

  • Page 42: Change Log

    Technical data Accessories Description Article number Mounting clip for screw mounting B98060008 XM420 mounting frame B990994 Change log Date Document Valid from State/Changes version software version 03.2021 D0476 V2.22 Editorial revision Added: Chapter 3.2.10: Note on stopped measuring function; Chapter 8: Modbus register 8003;...
  • Page 43 ISOMETER® isoUG425 isoUG425_D00220_04_M_XXEN/10.2023...
  • Page 44 Alle Rechte vorbehalten. 35305 Grünberg Nachdruck und Vervielfältigung nur mit Germany Genehmigung des Herausgebers. © Bender GmbH & Co. KG, Germany Subject to change! The specified Tel.: +49 6401 807-0 All rights reserved. standards take into account the edition info@bender.de Reprinting and duplicating only with valid until 10.2023 unless otherwise...

Table of Contents