Bender ISOMETER isoRW685W-D Manual
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Bender ISOMETER isoRW685W-D Manual

Bender ISOMETER isoRW685W-D Manual

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Manual EN
ISOMETER® isoRW685W-D
Insulation Monitoring Device for IT AC systems with galvanically connected
rectifiers and inverters and for IT DC systems
specific to railway applications
SW: D0438 V1.29 | D0437 V1.27
isoRW685W-D_D00178_09_M_XXEN/08.2024

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  • Page 1 Manual EN ISOMETER® isoRW685W-D Insulation Monitoring Device for IT AC systems with galvanically connected rectifiers and inverters and for IT DC systems specific to railway applications SW: D0438 V1.29 | D0437 V1.27 isoRW685W-D_D00178_09_M_XXEN/08.2024...
  • Page 2 isoRW685W-D_D00178_09_M_XXEN/08.2024...

  • Page 3: Table Of Contents

    Indication of important instructions and information...............6 Signs and symbols............................6 Service and Support............................6 Training courses and seminars........................7 Delivery conditions............................7 Inspection, transport and storage......................7 Warranty and liability.............................7 Disposal of Bender devices..........................8 1.10 Safety..................................8 Function..........................9 Intended use..............................9 Device features...............................10 Product description............................10 Function description............................
  • Page 4 Table of contents Connection to the X1 interface....................... 23 Connection to the Ethernet interface ETH..................23 Connection of the relay interfaces 1 and 2..................24 Teminal covers............................... 24 Commissioning........................25 General commissioning process......................25 Initial commissioning...........................25 Recommissioning............................28 Configuring password protection......................28 Display..........................30 Standard display............................
  • Page 5 ISOMETER® isoRW685W-D 9.4.5 Parameter changes............................55 9.4.6 Changing parameters in a web browser....................57 9.4.7 Changing parameters in the device menu when the web browser is open......57 9.4.8 Write access for parameter changes......................58 BS bus................................58 9.5.1 Master-slave principle..........................58 9.5.2 Addresses and address ranges on the BS bus................... 58 9.5.3 RS-485 specifications and cables......................

  • Page 6: 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. isoRW685W-D_D00178_09_M_XXEN/08.2024...

  • Page 7: 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 8: Disposal Of Bender Devices

    General information 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 9: Function

    ISOMETER® isoRW685W-D Function Intended use The ISOMETER® monitors the insulation resistance of unearthed AC/DC main circuits (IT systems). The application range of the different types is specified in the chapter “Technical data”, page 69. For the iso685-x and iso685-x-B types, the operating range of the nominal voltage U can be extended via coupling devices.

  • Page 10: Device Features

    • Remote diagnosis via the Internet (made available by Bender Service only) • isoData: permanent uninterrupted data transmission • RS-485/BS (Bender sensor bus) for data exchange with other Bender devices via Modbus RTU protocol • BCOM, Modbus TCP and web server Product description The ISOMETER®...

  • Page 11: Interfaces

    Interfaces • Communication protocol Modbus TCP • Communication protocol Modbus RTU • BCOM for communication of Bender devices via Ethernet • BS bus for communication of Bender devices (RS-485) • isoData for recording and managing measured values • Integrated web server for reading out measured values and setting parameters Self test After the voltage supply has been switched on, the ISOMETER®...
  • Page 12 Function Test successful TEST Test unsuccessful Measurement Test not available Coupling (e.g. incorrect device settings) Earth connection Testing... Outputs 33 % isoRW685W-D_D00178_09_M_XXEN/08.2024...

  • Page 13: Device Overview

    ISOMETER® isoRW685W-D Device overview Dimensions Figure: Enclosure iso685…-device familiy – dimensions in mm Connection FRONT REAR BOTTOM isoRW685W-D_D00178_09_M_XXEN/08.2024...

  • Page 14: Display Elements And Device Buttons

    Connector for alarm relay 1 21 22 24 Connector for alarm relay 2 BB-Bus isoxx685(W)-x-P… only: optional expansion interface for Bender products Display elements and device buttons Display elements The ON LED lights when the device is turned on. SERVICE The SERVICE LED lights when there is either a device error or a connection fault, or when the device is in maintenance mode.

  • Page 15: Operating And Navigating

    ISOMETER® isoRW685W-D Device buttons You can adjust the device settings in the respective menu using the device buttons. Depending on the menu entry, one of the options displayed below is assigned to the buttons. Navigates up in a list or increases a value. MENU Opens the device menu.

  • Page 16: Character Input

    Device overview List selection Use the buttons ˅ and ˄ to select values from a Parameter x.y.z predefined list (menu). The present value is indicated by a black menu item. Confirm the value with the OK 1st item button. Exit the list selection by pressing ESC. 2nd item 3rd item active Parameter selection and value adjustment...

  • Page 17: Mounting

    ISOMETER® isoRW685W-D Mounting General instructions Only skilled persons are permitted to carry out the work necessary to install, put into service and run a device or system. ADVICE Read the operating manual before mounting, connecting and commissioning the device. Keep the manual within easy reach for future reference.

  • Page 18: Screw Mounting

    Mounting Screw mounting Fix the three mounting clips as illustrated. Drill the mounting holes for the M4 thread according to the drilling template. Fix the device with three M4 or #10 screws. Figure 4-2: Screw mounting; dimensions in mm (in) DIN rail mounting Snap the device on the DIN rail.

  • Page 19: Connection

    ISOMETER® isoRW685W-D Connection Connection requirements Only skilled persons are permitted to carry out the work necessary to install, put into service and run a device or system. DANGER Risk of fatal injury due to electric shock! Touching live parts of the system carries the risk of: •...

  • Page 20: Connection To A 3(N)Ac System

    Connection CAUTION Provide line protection! According to IEC 60364-4-43, a line protection shall be provided for the supply voltage. Risk of injury from sharp-edged terminals! Risk of lacerations. Handle enclosure and terminals with care. Ensure disconnection from the IT system! When insulation or voltage tests are to be carried out, the device must be isolated from the system for the test period.

  • Page 21: Connection To An Ac System

    ISOMETER® isoRW685W-D Connection to an AC system Connection to a DC system In systems with a nominal system voltage of more than 690 V and with overvoltage category III, a fuse for the connection to the system to be monitored must be provided. * 2 A fuses recommended. Connection to a supply voltage CAUTION Damage to property due to faulty connection!
  • Page 22 Connection Voltage supply via external power supply units In case of external supply (24 V) the device can be supplied EITHER via A1/+ and A2/− OR via X1. In case of supply via A1/+ and A2/−, make sure that +24 V are applied to A1/+ and that A2/− is connected to GND (ground).

  • Page 23: Connection To The X1 Interface

    ISOMETER® isoRW685W-D Connection to the X1 interface I1…I3 Configurable digital inputs (e.g. test, reset, …) A, B Serial interface RS-485, termination by means of a DIP switch R. Supply voltage of the inputs and outputs I, Q and M. Electrical overload protection. Automatic shutdown in the event of short circuits and transients (resettable).

  • Page 24: Connection Of The Relay Interfaces 1 And 2

    Connection Connection of the relay interfaces 1 and 2 Relay 1 11 common contact 12 N/C contacts 14 N/O contacts Relay 2 21 common contact 22 N/C contacts 24 N/O contacts Teminal covers Insert the terminal covers into the recesses provided in the enclosure until they click into place. isoRW685W-D_D00178_09_M_XXEN/08.2024...

  • Page 25: Commissioning

    ISOMETER® isoRW685W-D Commissioning General commissioning process Check that the ISOMETER® is properly connected to the system to be monitored. Connect the supply voltage to the ISOMETER®. Set the device via the commissioning wizard. The ISOMETER® performs a self test in four steps. The alarm relays are not checked during this test. The measured insulation resistance is shown on the display.

  • Page 26: Setting The Language

    Commissioning Setting the language The language selected here will be used in the menu and for device messages. Language English Francais Setting date and time Alarm messages in the history memory and the insulation resistance value over time can only be assigned correctly to the isoGraph when date and time are set correctly.
  • Page 27 ISOMETER® isoRW685W-D Coupling A coupling device connected to the insulation monitoring device (to increase the nominal system voltage) must be programmed here. The measurement of the insulation resistance takes into account the parameters of the connected coupling device. If no coupling device is available, press OK. Commissioning Coupling ●...

  • Page 28: Recommissioning

    Commissioning Setting response value R for Alarm 2 You can set the response value for the main alarm here. Recommendation: 100 /V Commisioning Alarm 2 Please set the response value for R(an2) for alarm 2 After setting the response value R for alarm 2, the device starts a self test, makes the initial measurement and outputs the measured insulation resistance values of the IT system being monitored, then commissioning is completed.
  • Page 29 ISOMETER® isoRW685W-D Password Password x.5.1 0 0 0 0 1. Password **** 2. Status Min. Max. Password x.5.2 Status ○ ● 1. Password **** 2. Status isoRW685W-D_D00178_09_M_XXEN/08.2024...

  • Page 30: Display

    Display Display Standard display During normal operation, the ISOMETER® displays the message OK and below, the currently measured insulation resistance. The signal quality of the measurement is suitable for the selected profile The better the signal quality, the faster and more exact the device can measure. The signal quality of the measurement is not suitable for the selected profile Select a different measurement profile.

  • Page 31: Fault Display (Inactive)

    ISOMETER® isoRW685W-D Keypad Insulation fault Previous fault Menu selection 7 kΩ Acknowledge fault Start test Next fault Device information Display 1 / 4 Display of fault value and DC shift Signal quality and progress bar xth fault of Fault display (inactive) An inactive fault is displayed by an encircled i.

  • Page 32: Acknowledging A Fault Message

    Display Acknowledging a fault message In order to acknowledge the fault message and return to the ISOMETER®'s standard display, all faults must be acknowledged by means of the RESET button. This means that fault messages can only be reset when the cause of fault has been eliminated. Press the RESET button, then ˃...

  • Page 33: Initial Measurement

    ISOMETER® isoRW685W-D Keypad Data isoGraph Switch to previous measured value overview ,100 Exit view ,010 Change scaling (zoom in) ,001 Change scaling (zoom out) MΩ Switch to next measured value overview hour 16:26 16:52 Display 1 / 4 Present time scaling xth view of ...

  • Page 34: Settings In The Device Menu

    Settings in the device menu Settings in the device menu Menu structure Alarm settings Insulation alarm Alarm 1 Alarm 2 Fault memory DC alarm Alarm U(DC-E) Profile System type t(start) Coupling monitoring Behaviour when inactive Initial value Keep state Inputs Digital 1 Digital 2 Digital 3...

  • Page 35: Settings

    ISOMETER® isoRW685W-D Settings 8.2.1 Alarm settings The limit values for the insulation resistances of Alarm 1 and Alarm 2 can be specified in the Alarm settings menu and can be adapted to the user profile of the ISOMETER®. A device password is required for entering the settings.
  • Page 36 Settings in the device menu 8.2.1.2 DC alarm The DC alarm is triggered in the event of a DC offset voltage U in the system. DC-E Power cicuit Control circuit High capacitance Inverter > 10 Hz Inverter > 10 Hz System leakage capacitance [µF] Menu item: Alarm •...

  • Page 37: System Type

    Three-phase AC system 8.2.1.5 Coupling You can use the Bender coupling devices to adapt the ISOMETER® for use in systems with higher nominal system voltages U . For a description on the connection of coupling devices refer to the chapter “Coupling devices”, page 63.
  • Page 38 Settings in the device menu 8.2.1.8 Behaviour when inactive This menu item controls the behaviour of the device once it has been set to inactive. • Initial value When the device becomes inactive, the maximum measured value of the measuring range is displayed and all insulation faults are reset.
  • Page 39 ISOMETER® isoRW685W-D Menu item: Mode • Active high An event is carried out on the rising edge of the digital input (low to high). Response time t(on) / t(off) after a switch-on signal. • Active low An event is carried out on the falling edge of the digital input (high to low). Response time t(on) / t(off) after a switch-off signal.

  • Page 40: Selectable Functions

    Settings in the device menu 8.2.1.10 Outputs The ISOMETER® provides a total of six outputs (including buzzer). The following parameters can be set for the outputs: 8.2.1.10.1 Relays 1 and 2 The following relay parameters can be set: Menu item: TEST The functional test of the relay can be activated or deactivated.
  • Page 41 ISOMETER® isoRW685W-D Name in menu Description • Connection fault The status of the output changes when one of the following connection faults occurs: • No low-resistance connection between the line conductors • No low-resistance connection between terminals E and KE to earth (PE) •...
  • Page 42 Settings in the device menu Menu item: Mode The operating mode of the digital output has the following values: • Active In active mode, +24 V are applied internally to output Qx. • Passive In passive mode, ≤ 32 V are connected externally (see technical data). The output switches the applied potential to ground.
  • Page 43 ISOMETER® isoRW685W-D Name in menu Description • Ins. alarm 2 The status of the output changes when the value falls below the set response value R • Connection fault The status of the output changes when one of the following connection faults occurs: •...
  • Page 44 Settings in the device menu Menu item: TEST The functional test of the buzzer can be activated or deactivated. This only applies to the manual test and not to the cyclic device self test. • on The manual test activates the buzzer sound. •...

  • Page 45: Analogue Output

    ISOMETER® isoRW685W-D Name in menu Description • Common alarm The status of the output changes on the occurrence of any alarm or fault message. (Ins. alarms 1 & 2, DC− / DC+ alarms, symmetrical alarm, connection and device errors) • Measurement complete The status of the output changes at the end of the initial measurement.
  • Page 46 Settings in the device menu • 28 kΩ The switching signal is analogue to the midscale of 28 k or 120 k on a measuring instrument. • 120 kΩ 20 mA / 400 µA 28 kΩ 28 kΩ 100 Ω 10 V 120 kΩ...

  • Page 47: Data Meas. Values

    ISOMETER® isoRW685W-D 8.2.2 Data meas. values The ISOMETER® stores certain measured values for a specific period of time. You can view these data in the Data meas. value menu. Navigate through the different views using the ˄ and ˅ buttons: •...

  • Page 48: Clock (& Date)

    Settings in the device menu 8.2.5.2 Clock (& Date) Setting the time and date in the device. • Time Setting the current time. • Time format Setting the time format. 12 h 12-hour notation am/pm 24 h 24-hour notation • Summer time Setting the mode for the change between summer and winter time.
  • Page 49 ISOMETER® isoRW685W-D Menu item: Ethernet Set the parameters for communication with other devices via the Ethernet interface. Communication with Modbus, web server and BCOM is possible. • DHCP Activates and deactivates the automatic address setting via DHCP server. on: IP address, subnet mask and standard gateway are assigned automatically. off: Automatic IP address assignment is deactivated.
  • Page 50 Settings in the device menu Menu item: RS-485 Set the parameters for communication with other devices via the Bender sensor bus. • Mode Selecting the RS-485 protocol • BS bus Setting the BS bus address in the range: 1…90 • isoData Settings for isoData modes: 1, 2 or 3 •...

  • Page 51: Info

    Activation of special customer profiles by Bender. The device is first configured by the Bender service and the configuration is saved in a service profile. Activating this profile causes a warning message. The customer can activate it as a customer-specific profile by entering a Service Profile PIN.

  • Page 52: Device Communication

    A maximum of 5 TCP/IP connections can be used simultaneously. BCOM BCOM is intended for communication between Bender devices via Ethernet. In order to guarantee that all devices are able to communicate via BCOM, all devices must have the same system name.

  • Page 53: Conventions

    – Fast and easy visualisation, no programming knowledge required • Parameter setting – Easy and fast setting of the device parameters – Easy assignment of and editing options for device texts • Maintenance – Data storage of specific events for fast support by Bender Service isoRW685W-D_D00178_09_M_XXEN/08.2024...

  • Page 54: User Interface

    Device communication 9.4.3 User interface LOGO Logo and device name System information Device address Date and time of the accessing browser system. The web user interface does not show the current time of the ISOMETER®. The current time of ISOMETER® the can be determined in the menu at DEVICE >...

  • Page 55: Menu Structure

    ISOMETER® isoRW685W-D 9.4.4 Menu structure The web menu is located at the left side of the browser window. Activated menu items are either highlighted in yellow or are written in yellow. Use the scroll bar on the right side to display further menu items. active 1st menu level Mouseover active submenu level...
  • Page 56 Device communication Error detection in case of incorrect entry In some cases the system expects certain characters to be entered, for example, CAPITAL LETTERS. In case of an incorrect entry, the corresponding input field is coloured in red. Figure: Incorrect text entry Display of parameters with Modbus registers To each parameter a Modbus register is assigned that can be addressed via the open interfaces Modbus TCP or Modbus RTU.

  • Page 57: Changing Parameters In A Web Browser

    ISOMETER® isoRW685W-D 9.4.6 Changing parameters in a web browser Changed values are highlighted in yellow in the input field. Changes can be made via drop-down menu, value input or text input. The following figure shows application examples. Drop-down menu Value input Text input ↓...

  • Page 58: Write Access For Parameter Changes

    BS bus The BS bus is used to extend Bender measuring devices (e.g. ISOMETER®). It is an RS-485 interface with a specially developed protocol for Bender devices. On the BS bus, the transmission of alarm messages takes priority over the transmission of all other messages. For further information, refer to the BS bus manual (document number: D00278) at https://www.bender.de/en/service-support/download-area/...

  • Page 59: Rs-485 Specifications And Cables

    With a write command, data can be written into a register address. The register addresses of the individual measured values und parameters can be found in the manual “iso685-… Modbus settings” at https://www.bender.de/en/service-support/download-area/ isoRW685W-D_D00178_09_M_XXEN/08.2024...

  • Page 60: Isodata Protocol

    (unidirectional). This protocol cannot be used in combination with the BMS protocol. To evaluate the data by means of a PC or laptop, an USB/RS232-RS485 interface converter is required. Contact Bender Service to receive it. Interface data: • RS-485 interface galvanically separated from the device electronics •...
  • Page 61 ISOMETER® isoRW685W-D Description Length Values Unit Example Position in data block [Bytes] string Mode 1 Mode 2 Mode 3 Insulation fault location ' ' = symmetrical fault '+' = fault on L1/+ '–' = fault on L3/– Insulation fault location Insulation fault percentage distribution +123 Detailed overview...
  • Page 62 Device communication Description Length Values Unit Example Position in data block [Bytes] string Mode 1 Mode 2 Mode 3 Bit 9: Prewarning 0x0040 Note: Bitmask Insulation impedance Z Currently not supported Bit 10: Alarm 0x0080 Note: Bitmask Insulation impedance Z Currently not supported Bit 11: Alarm 0x0100 Note:...

  • Page 63: Coupling Devices

    ISOMETER® isoRW685W-D Coupling devices Coupling devices extend the nominal system voltage range of an ISOMETER®. Depending on the configuration, systems up to a nominal system voltage of 12 kV can be monitored. DANGER Risk of electric shock! Coupling devices are operated with high voltage, which can be life-threatening in case of direct contact. Make sure that only electrically skilled persons work on or with the device.Read the operating manual of the coupling device carefully.

  • Page 64: Connection Using The Agh520S (Art. No.: B913033)

    Coupling devices Connection to a 3NAC system Nominal voltage: 3NAC 0…1150 V Relative uncertainty: 15 % min. +/- 5 k 10.2 Connection using the AGH520S (Art. No.: B913033) Connection to a 3AC system Nominal voltage: AC 0…7200 V Relative uncertainty: 15 % min.

  • Page 65: Connection Using The Agh204S-4 (Art. No.: B914013)

    ISOMETER® isoRW685W-D Connection to a 3NAC system Nominal voltage: AC 0…7200 V Relative uncertainty: 15 % min. +/- 5 k 10.3 Connection using the AGH204S-4 (Art. No.: B914013) Connection to a 3(N)AC system Nominal voltage with rectifier: AC 0...1300 V Nominal voltage without rectifier: AC 0...1650 V Relative uncertainty:...

  • Page 66: Connection Using The Agh676S -4 (Art. No.: B913055)

    Coupling devices 10.4 Connection using the AGH676S -4 (Art. No.: B913055) Connection to a 3(N)AC system Nominal voltage: AC 12 kV Relative uncertainty: 15 % min. +/- 5 k isoRW685W-D_D00178_09_M_XXEN/08.2024...

  • Page 67: Alarm Messages

    • Press the button TEST. [LED SERVICE is lit] • Switch the supply voltage off and on. • Contact Bender Service. DC offset voltage There is a DC offset voltage in the system. • Check insulation fault and eliminate fault of DC components.

  • Page 68: Measured Value Alarms

    Alarm messages 11.2 Measured value alarms Alarm messages are activated as soon as the device has been switched on and can be signalled immediately. Message Description Actions Insulation fault prewarning An insulation fault exists. The insulation resistance falls • Watch insulation resistance in the monitored system. below the response value R [LED ALARM 1 is lit] •...

  • Page 69: Technical Data

    ISOMETER® isoRW685W-D Technical data 12.1 Device profiles When switching a profile, the value of R is reset. Switching a profile may result in longer measuring times. Adjustments to different applications can be made by selecting a device profile. The following device profiles are available: Power circuits Main circuits without dynamic frequency changes.

  • Page 70: Control Circuits

    Technical data Control circuits This profile is used to reduce the measurement voltage U in control systems with lower nominal voltages in order to reduce the impact by the ISOMETER® on sensitive switching elements. Measuring range Response values AC 0…230 V 15…460 Hz 0…150 F ±10 V...
  • Page 71 ISOMETER® isoRW685W-D Generator This profile allows the realisation of a very fast measuring time, e.g. as required for generator monitoring. Furthermore, this profile can be used to support fast fault location in an IT system. The generator profile is suitable for AC systems containing DC components. Measuring range Response values AC 0…690 V...
  • Page 72 Technical data High capacitance For systems with high system leakage capacitances, e.g. ship applications, the impact of system leakage capacitances on the measuring result can be significantly reduced by selecting this profile. Measuring range Response values AC 0…690 V 15…460 Hz 0…1000 F ±50 V 0.1 k …...
  • Page 73 ISOMETER® isoRW685W-D Inverter > 10 Hz This profile is used for systems with dynamic frequency control by inverters in the range 10…460 Hz in order to optimise the measurement with respect to the measuring time and quality. Measuring range Response values AC 0…690 V 10…460 Hz 0…20 F...
  • Page 74 “Tabular data”, page 77. Customer-specific Enables Bender Service to make customised measurement settings to make customised measurement settings. If no settings have been made by Bender Service, the profile has the same parameters as the Power circuits profile. isoRW685W-D_D00178_09_M_XXEN/08.2024...

  • Page 75: Operating Uncertainty

    ISOMETER® isoRW685W-D 12.2 Operating uncertainty Operating uncertainty [%] as a function of response value R and system leakage capacitance C acc. to IEC 61557-8 (U = 690 V, f = 50 Hz); measuring range < 10 M Response value [kΩ] isoRW685W-D_D00178_09_M_XXEN/08.2024...

  • Page 76: Technical Data

    Technical data 12.3 Factory settings System System type System profile Power circuits Coupling (Coupling device) none Coupling monitoring Start-up delay t 0 ms start Response values/alarms Response value R (ALARM 1) 40 kΩ Response value R (ALARM 2) 10 kΩ DC alarm DC offset voltage for DC alarm 65 V...

  • Page 77: Tabular Data

    ISOMETER® isoRW685W-D Address Baud rate 19.2 kBd Parity even Stop bits The BCOM name is not changed when the factory settings are restored. 12.4 Tabular data Insulation coordination acc. to IEC 60664-1/-3 Rated voltage 1000 V Overvoltage category Definitions Measuring circuit (IC1) L1/+, L2, L3/−...

  • Page 78: Supply Voltage

    Technical data Voltage test (routine test) according to IEC 61010-1 IC2/(IC3-5) AC 2.2 kV IC3/(IC4-5) AC 2.2 kV IC4/IC5 AC 2.2 kV Supply voltage Supply via A1/+, A2/− Supply voltage range U AC/DC 24…240 V Tolerance of U −30…+15 % Maximum permissible input current of U 650 mA Frequency range of U...
  • Page 79 ISOMETER® isoRW685W-D Time response Response time t profile-dependent, typ. 4 s at R = 0.5 × R (10 k ) and C (1 F) acc. to IEC 61557-8 Response time DC alarm at C = 1 F profile-dependent, typ. 2 s Start-up delay t 0 s …...
  • Page 80 Technical data LEDs ON (operation LED) green SERVICE yellow ALARM 1 yellow ALARM 2 yellow Inputs/outputs (X1) Cable length X1 (unshielded cable) ≤ 10 m Cable length X1 (shielded cable, shield connected to PE on one side) ≤ 100 m recommended: J-Y(St)Y min.

  • Page 81: Switching Elements

    ISOMETER® isoRW685W-D Analogue output (M+) Voltage (load) 0…10 V (>1 k ) 2…10 V (>1 k ) Tolerance related to the current/voltage final value % ±20 % Interfaces Field bus Interface/protocol web server/Modbus TCP/BCOM Data rate 10/100 Mbit/s, autodetect Max. number of Modbus requests <...
  • Page 82 Technical data Contact data acc. to IEC 60947-5-1 Utilisation category AC-13 / AC-14 / DC-12 / DC-12 / DC-12 / DC-12 Rated operational voltage 230 V / 230 V / 24 V / 48 V / 110 V / 220 V Rated operational current 5 A / 3 A / 1 A / 1 A / 0.2 A / 0.1 A Rated insulation voltage at ≤...
  • Page 83 ISOMETER® isoRW685W-D Push-wire terminals Nominal current ≤ 10 A Conductor sizes AWG 24-12 Stripping length 10 mm Wire cross-section rigid/flexible 0.2…2.5 mm² flexible with ferrule with/without plastic sleeve 0.25…2.5 mm² Multiple conductor, flexible with TWIN ferrule with plastic sleeve 0.5…1.5 mm² Push-wire terminals X1 Nominal current ≤...

  • Page 84: Standards And Certifications

    Technical data 12.5 Standards and certifications The ISOMETER® has been developed in compliance with the following standards: • DIN EN 61557-8 (VDE 0413-8): 2015-12 • IEC 61557-8: 2014-12 • IEC 61557-8: 2014/COR1:2016 • DIN EN 61557-8 Cor 1 (VDE 0413-8 Cor 1): 2016-12 •...

  • Page 85: Document Revision History

    ISOMETER® isoRW685W-D 12.7 Document revision history Date Document version Valid from software State/Changes version 03/2021 D0438 V1.27 Editorial revision D0437 V1.26 Added – Menu entry "Behaviour when inactive" – Contact details of the relays – UKCA certificate – Document revision history 12/2021 Redaktionelle Überarbeitung Added: Aplication in railway vehicles / DIN EN...

  • Page 86: Glossary

    BCOM Protocol for communication between Bender devices via an IP-based network. BS bus The Bender sensor bus is an interface which enables Bender devices to communicate with each other (RS-485 interface). DHCP Dynamic Host Configuration Protocol. It is used to assign the network configuration to Clients via a server.
  • Page 87 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 08.2024 unless otherwise...

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