Bender RCMA423AS Manual
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Bender RCMA423AS Manual

Residual current monitor for monitoring ac-, dc- and pulsed dc currents in tn- and tt systems (acc. norm as/nzs 2081:2011)
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Manual
RCMA423AS
Residual current monitor
for monitoring AC-, DC- and pulsed DC currents
in TN- and TT systems (acc. norm AS/NZS 2081:2011)
Software version: D441 V1.1x
RCMA423AS_D00157_01_M_XXEN/08.2016

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  • Page 1 Manual RCMA423AS Residual current monitor for monitoring AC-, DC- and pulsed DC currents in TN- and TT systems (acc. norm AS/NZS 2081:2011) Software version: D441 V1.1x RCMA423AS_D00157_01_M_XXEN/08.2016...
  • Page 2 Bender GmbH & Co. KG P.O. Box 1161 • 35301 Gruenberg • Germany Londorfer Strasse 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 ..................7 How to use this manual ................. 7 Technical support: service and support ........... 8 1.2.1 First level support ..................... 8 1.2.2 Repair service ..................... 8 1.2.3 Field service ......................9 Training courses ..................... 10 Delivery conditions ..................
  • Page 4 Table of Contents 3.2.9 Residual current monitoring in window discriminator mode ..18 3.2.10 Password protection (on, OFF) ..............18 3.2.11 Factory setting FAC ..................18 3.2.12 Erasable history memory ................18 3.2.13 External, combined test/reset button T/R ..........18 3.2.14 Fault memory ....................
  • Page 5 Table of Contents Ordering information ................... 43 Error codes ....................... 44 INDEX ........................45 RCMA423AS_D00157_01_M_XXEN/08.2016...

  • Page 7: 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 8: 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 9: Field Service

    Important information 1.2.3 Field service On-site service for all Bender products Commissioning, configuring, maintenance, troubleshooting of Bender   products Analysis of the electrical installation in the building (power quality test,   EMC test, thermography) Training courses for customers ...

  • Page 10: Training Courses

    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 11: Warranty And Liability

    Important information 1.6 Warranty and liability Warranty and liability claims in the event of injury to persons or damage to property are excluded if they can be attributed to one or more of the follow- ing causes: Improper use of the device. ...

  • Page 12: 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.com -> Service & support.

  • Page 13: 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 14: Intended Use

    Δn2 Δn2 Since the values are measured with measuring current transformers, the RCMA423AS 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 15: Function

    3. Function 3.1 Device features AC/DC sensitive residual current monitor for mining according to  AS/NZS 2081:2011 Two separately adjustable response ranges (prewarning, alarm)  Adjustable switching hysteresis  r.m.s. value measurement  Start-up delay, response delay and delay on release ...

  • Page 16: Connection Monitoring

    Function 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 parameterisation of the device can be carried out via the LC display and the control keys integrated in the front plate and can be pass- word-protected.

  • Page 17: 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 18: Residual Current Monitoring In Window Discriminator Mode

    Function If the residual current fault does not continue to exist, an alarm will not be signalled. 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, the alarm state is continuously maintained for the selec- ted period.

  • Page 19: Fault Memory

    Function 3.2.14 Fault memory The fault memory can be activated, deactivated or set to continuous mode (con). If the fault memory is set to "con" mode, the alarm parameters remain stored even on failure of the supply voltage. Stored alarms can be reset by me- ans of the reset button R.
  • Page 20 Function RCMA423AS_D00157_01_M_XXEN/08.2016...

  • Page 21: 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 22 Installation and connection The front plate cover is easy to open at the lower part marked by an arrow. 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-...

  • Page 23: 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 Δn2...

  • Page 24: Function Of The Operating Elements

    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 Δn1 LED Alarm 2 lights (yellow): Res- AL1 AL2 ponse value 2 reached Δn2...

  • Page 25: 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 26: Display In Standard Mode

    Operation and setting Menu Menu Activation 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 word...

  • Page 27: 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 28 Operation and setting Menu structure RCMA423AS_D00157_01_M_XXEN/08.2016...

  • Page 29: Changeover From Overcurrent To Undercurrent Mode Or To Window

    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 30: Response Value Setting For Overcurrent

    Operation and setting 5.5.3 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 (alarm overcurrent) Increasing the response value I1 (prewarning overcurrent) Setting the hysteresis of the response value RCMA423AS_D00157_01_M_XXEN/08.2016...

  • Page 31: Alarm Relay Operating Mode

    Operation and setting 5.5.4 Alarm relay operating mode Setting the alarm relay K1 to N/O operation (n.o.) Setting the number of reload cycles 5.5.5 Assigning alarm categories to the alarm relays The following messages can be assigned to the alarm relays K1 (r1) and K2 (r2): Device error ...
  • Page 32 Operation and setting Alarm relay K1: Deactivating the category device error Alarm relay K1: Deactivating the category response value I1 RCMA423AS_D00157_01_M_XXEN/08.2016...
  • Page 33 Operation and setting Alarm relay K1: Activating the category response value I2 Alarm relay K1: Deactivating the category "Alarm by device test" 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 CAUTION respective alarm LED (AL1/AL2)!

  • Page 34: Setting The Time Delays

    Operation and setting 5.5.6 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…300 s) for K1, K2.

  • Page 35: Changing From Overcurrent Operation To Window Operation

    Operation and setting 5.5.7 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). In addition, window operati- on (In) can be selected. 5.5.8 Factory setting and password protection Use this menu to activate the password protection, to change the password...
  • Page 36 Operation and setting b) Changing the password c) Deactivating the password protection RCMA423AS_D00157_01_M_XXEN/08.2016...

  • Page 37: Restoring Factory Settings

    Operation and setting 5.5.9 Restoring factory settings 5.5.10 Device information query This function is used to query the software version (D441 Vx.xx). After acti- vating 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 38: Factory Setting

    Operation and setting 5.7 Factory setting Operating mode Overcurrent mode (HI) Response value overcurrent I1 50 mA (50 % of I2) Response value overcurrent I2 100 mA Hysteresis 15 % Fault memory M activated (on) Operating mode K1/K2 N/C operation (n.c.) Message K1 Overcurrent I2 Message K2...

  • Page 39: Technical Data

    6. Technical data 6.1 Data in tabular form ( )* = factory setting Insulation coordination acc. to IEC 60664-1/IEC 60664-3 RCMA423AS-D-1: Rated insulation voltage ........................ 100 V Overvoltage category/ pollution degree.................... III/3 Rated impulse voltage........................2.5 kV RCMA423AS-D-2: Rated insulation voltage ........................ 250 V Overvoltage category/ pollution degree....................
  • Page 40 Technical data Measuring circuit External measuring current transformer ......W20AB, W35AB(P), W60AB(P), W120AB, W210AB series Rated insulation voltage (measuring current transformer) .................. 800 V Rated frequency ............................0…1000 Hz Relative uncertainty for f ≤ 2 Hz or ≥ 30 Hz ...................... ±10 % Relative uncertainty for f >...
  • Page 41 Technical 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 AS/NZS 2081:2011: Utilisation category AC-13 AC-14 DC-12 DC-12 ..
  • Page 42 Technical data Connection type......................push-wire terminals Connection properties: Rigid .......................... 0.2…2.5 mm ( AWG 24…14) Flexible without ferrules ..................0.75…2.5 mm ( AWG 19…14) Flexible with ferrules....................0.2…1.5 mm ( AWG 24…16) Stripping length ..............................10 mm Opening force................................50 N Test opening, diameter............................

  • Page 43: Standards, Approvals And Certifications

    Technical data 6.2 Standards, approvals and certifications AS/NZS 2081: 2011 "Electrical protection devices for mines and quarries" 6.3 Ordering information RCMA423AS-D-1 RCMA423AS-D-2 Response range 100 mA…5 A 100 mA…5 A Δn Rated frequency 0…1000 Hz 0…1000 Hz DC 9.6…94 V DC 70…300 V...
  • Page 44 Appropriate action when error codes > 02 occur: Appropriate action: Carry out a reset. Reset the device to E… factory setting. After eliminating the fault, the error code will be automatically deleted. If the fault continues to exist, please contact the Bender Service. RCMA423AS_D00157_01_M_XXEN/08.2016...
  • Page 45 INDEX How to use this manual 7 Adjustable parameters, list 25 Installation and connection 21 Automatic self test 16 Intended use 14 Connection of an additional cascaded K1/K2: assignment alarm category 25 measuring current transformer 23 LED Alarm 1 lights 24 Delay on release toff 18 LED Alarm 2 lights 24 Deleting the fault alarms 24...
  • Page 46 Service 8 Set response values Operating elements, function 24 - Hysteresis 30 Operation and setting 23 - Overcurrent (> I) 30 Ordering information 43 Setting the number of reload cycles 31 Starting delay t 17 Parameter query and setting, overview 27 Starting the menu mode 24 Parameter setting Support 8...
  • Page 48 Bender GmbH & Co. KG P.O. Box 1161 • 35301 Gruenberg • Germany Londorfer Strasse 65 • 35305 Gruenberg • Germany Tel.: +49 6401 807-0 • Fax: +49 6401 807-259 E-Mail: info@bender.de • www.bender.de Photos: Bender archives...

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