Bender RCMA423 Manual
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Bender RCMA423 Manual

Residual current monitor for monitoring ac- and (pulsed) dc-currents 10 ma…3 a in tn- and tt systems
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RCMA423
Residual current monitor
for monitoring AC- and (pulsed) DC-currents I
= 10 mA...3 A
Δ
in TN- and TT systems
RCMA423_D00063_03_M_XXEN/03.2021
Manual EN

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Summary of Contents for Bender RCMA423

  • Page 1 RCMA423 Residual current monitor for monitoring AC- and (pulsed) DC-currents I = 10 mA…3 A Δ in TN- and TT systems RCMA423_D00063_03_M_XXEN/03.2021 Manual EN...
  • Page 2 Bender GmbH & Co. KG PO Box 1161 • 35301 Grünberg • Germany Londorfer Strasse 65 • 35305 Grünberg • 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 ..................5 How to use this manual ................. 5 Technical support: service and support ........... 6 1.2.1 First level support ..................... 6 1.2.2 Repair service ..................... 6 1.2.3 Field service ......................7 Training courses ....................7 Delivery conditions ..................
  • Page 4 Table of Contents 3.2.10 Password protection (on, OFF) ..............15 3.2.11 Factory setting FAC ..................15 3.2.12 Erasable history memory ................15 3.2.13 External, combined test/reset button T/R ..........15 3.2.14 Fault memory ....................15 4. Installation and connection ................. 16 5.

  • Page 5: Important Information

    This manual has been compiled with great care. It might nevertheless contain errors and mistakes. Bender cannot accept any liability for injury to persons or damage to property resulting from errors or mistakes in this manual.

  • Page 6: Technical Support: Service And Support

    Important information 1.2 Technical support: service and support For commissioning and troubleshooting Bender offers you: 1.2.1 First level support Technical support by phone or e-mail for all Bender products Questions concerning specific customer applications   Commissioning   Troubleshooting ...

  • Page 7: Field Service

    **Mo-Thu 7.00 a.m. - 8.00 p.m., Fr 7.00 a.m. - 13.00 p.m 1.3 Training courses Bender 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 >...

  • Page 8: Inspection, Transport And Storage

    ZVEI (Zentralverband Elektrotechnik- und Elektronikindustrie e. V.) (German Electrical and Electron- ic Manufacturer's Association) also applies. Sale and delivery conditions can be obtained from Bender in printed or elec- tronic format. 1.5 Inspection, transport and storage Inspect the dispatch and equipment packaging for damage, and compare the contents of the package with the delivery documents.

  • Page 9: Disposal

    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 > Service & support.

  • Page 10: Safety Instructions

    2. Safety instructions 2.1 General safety instructions Part of the device documentation in addition to this manual is the enclosed "Safety instructions for Bender products". 2.2 Work activities on electrical installations Only qualified personnel are permitted to carry out the work necessary to install, commission and run a device or system.

  • Page 11: Intended Use

    ). Since the values are measured with measuring current transformers, Δn2 the RCMA423 is nearly independent of the nominal voltage and the current of the system being monitored. In order to meet the requirements of the applicable standards, customised pa- rameter settings must be made on the equipment in order to adapt it to local equipment and operating conditions.

  • Page 12: Function

    Function 3. Function 3.1 Device features AC/DC sensitive residual current monitor Type B according to  DIN EN 62020 and IEC 60755 Two separately adjustable response ranges (prewarning, main alarm)  Adjustable switching hysteresis  r.m.s. value measurement  Start-up delay, response delay and delay on release ...

  • Page 13: Connection Monitoring

    Function If the fault memory is activated, the alarm relays remain in the alarm state and the LEDs light until the reset button is pressed or until the supply voltage is interrupted. The device function can be tested using the test button. The pa- rameterisation of the device can be carried out via the LC display and the con- trol keys integrated in the front plate and can be password-protected.

  • Page 14: Functional Faults

    Functional faults If an internal functional fault occurs, all of the three LEDs flash. An error code will appear on the display (E01…E32). In such a case please contact the Bender Service. 3.2.6 Setting the number of reload cycles If faults occur only temporarily, but recurrently, in the system being monito- red, with the fault memory M deactivated, the alarm relays would switch syn- chronously to the error status.

  • Page 15: Residual Current Monitoring In Window Discriminator Mode

    Function Delay on release When no alarm exists after deactivating the fault memory, the alarm LEDs go out and the alarm relays switch back to their initial position. After activating the delay on release (0…99 s), the alarm state is continuously maintained for the selected period.

  • Page 16: Installation And Connection

    Installation and connection 4. Installation and connection Only qualified personnel are permitted to carry out the work necessary to install, 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 17 Installation and connection 1. DIN rail mounting: Snap the rear mounting clip of the device into place in such a way that a safe and tight fit is ensured. Screw mounting: Use a tool to move the rear mounting clips (a second mounting clip required, see ordering information) to a position that it projects bey- ond the enclosure.

  • Page 18: Operation And Setting

    Operation and setting 5. Operation and setting 5.1 Display elements A detailed description of the meaning of the display elements in use is given in the table below. Display elements in use Element Function Reload function with memory = off (L = I.) Response value I as mA...
  • Page 19 Operation and setting 5.2 Function of the operating elements Ele- Device front Function ment Lighting continuously: Power On Flashing: green system fault or connection monito- ring fault LED Alarm 1 lights (yellow): AL1, Response value 1 reached Δ LED Alarm 2 lights (yellow): Res- AL1 AL2 ponse value 2 reached Δ...

  • Page 20: Menu Structure

    Operation and setting 5.3 Menu structure All adjustable parameters are listed in the columns "menu item" and "adjus- table parameters". A display-like representation is used to illustrate the para- meters in the column menu item. Different alarm categories can be assigned to the alarm relays K1, K2 via the submenus r1, r2.

  • Page 21: Display In Standard Mode

    Operation and setting Menu Activati Menu Adjustable parameter Menu item t on 1 Response delay K1 t on 2 Response delay K2 (timing check) Start-up delay t off Delay on release K1/K2 Selectable parameters: I 12 High, window function, low Parameter setting via pass- (device con- word...

  • Page 22: Display In Menu Mode

    Operation and setting 5.5 Display in menu mode 5.5.1 Parameter query and setting: overview Menu Adjustable parameter item Response values query and setting: – Residual current I2 (I ) (AL2) Δn2 – Residual current I1 (I ) (AL1) Δn1 – Hysteresis of the response values: % Hys Configuration of the fault memory and the alarm relay: –...
  • Page 23 Operation and setting Menu structure t > 1,5 s t > 1,5 s t < 1,5 s t > 1,5 s t < RCMA423_D00063_03_M_XXEN/03.2021...
  • Page 24 Operation and setting Parameter settings An example is given here on how to change the alarm response value I1 (I Δn1 It is presumed that the option overcurrent (HI) has been selected in the SEt/I 12 menu (factory setting). Proceed as follows: 1.

  • Page 25: Response Value Setting For Overcurrent

    Operation and setting 5.5.2 Response value setting for overcurrent - Response value I2 (overcurrent I Δn2 - Response value I1 (overcurrent I Δn1 - Hysteresis (Hys) of the response values I Δn1 Δn2 Increasing the response value I2 (main alarm overcurrent) >...

  • Page 26: Setting The Fault Memory And Alarm Relay Operating Mode

    Operation and setting 5.5.3 Setting the fault memory and alarm relay operating mode Setting the fault memory to con mode Setting the alarm relay K1 to N/O operation (n.o.) Setting the number of reload cycles > 1,5 s RCMA423_D00063_03_M_XXEN/03.2021...

  • Page 27: Assigning Alarm Categories To The Alarm Relays

    Operation and setting 5.5.4 Assigning alarm categories to the alarm relays Overcurrent, undercurrent and device-related errors of the residual current monitor can be assigned to the alarm relays K1 (r1, 1) and K2 (r2, 2). By default, the alarm relays K1 and K2 signal prewarning and alarm in case of overcurrent and device-related errors.
  • Page 28 Operation and setting Alarm relay K1: Activating the category response value I2 > 1,5 s Alarm relay K1: Deactivating the category "Alarm by device test" > 1,5 s When an alarm relay (K1/K2) has been deactivated in the menu, an alarm will not be signalled by the respective changeover contact! An alarm will only be indicated by the WARNING respective alarm LED (AL1/AL2)!

  • Page 29: Setting The Time Delays

    Operation and setting 5.5.5 Setting the time delays The following delays can be set: Response delay t (0…10 s) for K1, and t (0…10 s) for K2  Start-up delay t (0…10 s) when the device is being started  Common delay on release t (0…99 s) for K1, K2.

  • Page 30: Changeover From Overcurrent To Undercurrent Mode Or To Window

    Operation and setting 5.5.6 Changeover from overcurrent to undercurrent mode or to window mode The operating mode can be changed in the SEt/I 12 menu using the parame- ters HI, Lo and In. By default, overcurrent operation (HI) is set. Changing from overcurrent operation to window operation Use this menu item to set whether the response values of the device apply to overcurrent (HI) or undercurrent operation (Lo).
  • Page 31 Operation and setting b) Changing the password >1,5 s c) Deactivating the password protection >1,5 s RCMA423_D00063_03_M_XXEN/03.2021...

  • Page 32: Device Information Query

    Operation and setting Restoring factory settings ..5.5.8 Device information query This function is used to query the software version (1.xx). After activating this function, data will be displayed as a scrolling text. Once one pass is completed you can select individual data sections using the Up/Down keys..

  • Page 33: Data

    Data 6. Data 6.1 Factory setting Response value - overcurrent I1 (prewarning) 15 mA (50 % of I2) 30 mA - overcurrent I2 (main alarm) Hysteresis 15 % Fault memory M activated (on) Operating mode K1/K2 N/C operation (n.c.) Start-up delay t = 0.5 s Response delay = 1 s...

  • Page 34: Error Codes

    Appropriate action when error codes > 02 occur: Appropriate action: Carry out a reset. Reset the device to fac- E… tory setting. After eliminating the fault, the error code will be automatically deleted. If the fault continues to exist, please con- tact the Bender Service. RCMA423_D00063_03_M_XXEN/03.2021...

  • Page 35: Technical Data

    Data 6.3 Technical data ( )* = factory setting Insulation coordination acc. to IEC 60664-1/IEC 60664-3 RCMA423-D-1 Rated insulation voltage ......................... 100 V Overvoltage category/ pollution degree.................... III/3 Rated impulse voltage ........................2,5 kV RCMA423-D-2 Rated insulation voltage ........................ 250 V Overvoltage category/ pollution degree....................
  • Page 36 Data Relative uncertainty for ≤ 2 Hz……............................0…–35 % > 2…< 16 Hz ........................–35 %…+100 % ≥ 16…≤ 1000 Hz..........................0…–35 % > 1000 … ≤ 2000 Hz …........................± 35 % Operating uncertainty............................±17.5% Response values Rated residual operating current (prewarning, AL1) ..........
  • Page 37 Data Switching elements Number of switching elements ..................... 2 x 1 changeover contact Operating principle ................N/C operation / N/O operation (N/C operation)* Electrical endurance, number of cycles........................ 10000 Contact data acc. to IEC 60947-5-1 Utilisation category...............AC-13..AC-14..DC-12..DC-12..DC-12 Rated operational voltage ............230 V ..230 V ....24 V ..110 V ..220 V Rated operational voltage UL..........200 V ..200 V ....24 V ..110 V ..
  • Page 38 Data Connection For UL application ..................... use 60°C/70°C copper conductors only Connection type......................screw-type terminals Connection properties: rigid/ flexible/ conductor sizes ..............0.2…4 / 0.2…2.5 mm / AWG 24…12 Multi-conductor connection (2 conductors with the same cross section): rigid, flexible........................0.2…1.5 / 0.2…1.5 mm Stripping length ............................

  • Page 39: Standards, Approvals And Certifications

    Data 6.4 Standards, approvals and certifications 6.5 Ordering information RCMA423-D-1 RCMA423-D-2 Response range 30 mA…3 A 30 mA…3 A Δn Rated frequency 0…2000 Hz 0…2000 Hz DC 9.6…94 V / DC 70…300 V / Supply voltage AC 42…460 Hz, AC 42…460 Hz, 16…72 V...
  • Page 40 — B78120018 210 mm CTUB101-CTBC210P B78120028 Measuring current transformer connecting cable Type Length (m) Art. No. CTX-100 B98110080 CTX-250 B98110081 CTX-500 B98110082 CTX-1000 B98110083 RCMA423 accessories Mounting clip for screw mounting (1 piece per device) ................B 9806 0008 RCMA423_D00063_03_M_XXEN/03.2021...

  • Page 41: Document Revision History

    Data 6.6 Document revision history Document Date State/Changes version 03.2021 Editorial revision Chapter 4.: Wiring diagram Chapter 6.3: relative uncertainty for f, min. contact load, operating uncertainty Chapter 6.5: Ordering details CTUB… Added Chapter 6.4: Logo UKCA RCMA423_D00063_03_M_XXEN/03.2021...
  • Page 42 Data RCMA423_D00063_03_M_XXEN/03.2021...
  • Page 43 INDEX Adjustable parameters, list 20 K1/K2: assignment alarm category 20 Automatic self test 13 LED Alarm 1 lights 19 Delay on release toff 15 LED Alarm 2 lights 19 Deleting the fault alarms 19 Device features 12 Manual self test 13 Display elements 18 Measuring current transformer connecting Display in standard mode 21...
  • Page 44 INDEX - Activating or deactivating the pass- word protection 30 Technical data 35 - Activating the fault memory 26 Test button 19 - Assigning alarm categories to the Training courses 7 alarm relays 27 - Changeover from overcurrent opera- Window operation 30 tion to window operation 30 Wiring diagram 17 - Set response values 25...
  • Page 48 Bender GmbH & Co. KG PO Box 1161 • 35301 Grünberg • Germany Londorfer Strasse 65 • 35305 Grünberg • Germany Tel.: +49 6401 807-0 • Fax: +49 6401 807-259 E-Mail: info@bender.de • www.bender.de BENDER Photos: Bender archives...

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