Bender RCMA426H-DCB Manual
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Bender RCMA426H-DCB Manual

Residual current monitor for monitoring ac, dc and pulsed dc currents in earthed and resistance earthed systems
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Manual
RCMA426H-DCB
Residual current monitor
for monitoring AC, DC and pulsed DC currents
in earthed and resistance earthed systems
Software version D312 V1.0x
RCMA426H-DCB_D00066_00_M_XXEN/05.2014

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Summary of Contents for Bender RCMA426H-DCB

  • Page 1 Manual RCMA426H-DCB Residual current monitor for monitoring AC, DC and pulsed DC currents in earthed and resistance earthed systems Software version D312 V1.0x RCMA426H-DCB_D00066_00_M_XXEN/05.2014...
  • 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 Web: http://www.bender.de © Bender GmbH & Co. KG All rights reserved.

  • Page 3: Table Of Contents

    Table of Contents 1. Making effective use of this document ............5 How to use this manual ................. 5 Intended use ...................... 5 2. Safety instructions ................... 7 General safety instructions ................7 Work activities on electrical installations ..........7 3.
  • Page 4 5.7.4 Making settings in the SEt menu ............. 23 5.7.5 Querying and erasing the fault memory in the HIS menu ..... 26 6. Technical data ....................27 Data RCMA426H-DCB-2 in table form ........... 27 Error codes ....................... 30 Recommended contactors ................ 31 Response times of the RCMA426H system plus contactor in ac- cordance with UL943 ...................

  • Page 5: Making Effective Use Of This Document

    Info symbol. 1.2 Intended use The AC/DC sensitive residual current monitor RCMA426H-DCB with its inter- nal measuring current transformer is used to monitor earthed and resistive- earthed systems (TN and TT systems) in which DC and AC fault currents may occur.
  • Page 6 Making effective use of this document RCMA426H-DCB_D00066_00_M_XXEN/05.2014...

  • Page 7: Safety Instructions

    2.1 General safety instructions In addition to these operating instructions, the "Important safety instructions for Bender products“, which are also included in the scope of supply, are an in- tegral part of the device documentation. 2.2 Work activities on electrical installations Only skilled persons are permitted to carry out the work necessary to ...
  • Page 8 Safety instructions RCMA426H-DCB_D00066_00_M_XXEN/05.2014...

  • Page 9: Function

     3.2 Description of function The RCMA426H-DCB runs a device test when the power supply voltage is con- nected. During the start-up phase, the TRP LED lights up, the alarm LED ERR flashes and the alarm relay switches to the alarm setting.

  • Page 10: Transformer Monitoring

    Function Once the device test has been completed successfully, the ERR alarm LED will stop flashing, the TPD LED will go out and the alarm relay will return to the normal setting. The device will check the circuit for the presence of residual currents even dur- ing the self test.

  • Page 11: Quick Query Of The Rated Residual Operating Current

    Function 3.2.2 Quick query of the rated residual operating current When the display is in standard mode, the rated residual operating current = 6 mA can be queried by pressing the Up or Down button (< 1.5 s). Switch- Δn ing to menu mode is not necessary.

  • Page 12: Password Protection (On, Off)

    The interface provides the device with a means of communicating with an alarm indicator and test combination (e.g.: MK2430). The ability to output up- to-date measured values and alarms is just one of the features supported. Test and reset commands can be sent to the RCMA426H-DCB from the MK2430. RCMA426H-DCB_D00066_00_M_XXEN/05.2014...

  • Page 13: Installation And Connection

    Make sure that the installation area has been de-energised and ensure compliance with the regulations for working on electri- cal installations. 4.1 Dimension diagrams RCMA426H-DCB dimension diagram and drawing for screw fixing The front plate cover is easy to open at the lower part marked by an arrow. RCMA426H-DCB_D00066_00_M_XXEN/05.2014...
  • Page 14 Installation and connection 1. Mounting on a DIN rail: Snap the mounting clip at the rear of the device onto the DIN rail so that it sits securely. Screw fixing: Using the tool, position the rear mounting clips (a second mounting clip is required, see the ordering information) so that it protrudes over the enclosure.

  • Page 15: Factory Setting

    Installation and connection 4.2 Factory setting Rated residual operating cur- rent, fixed value: 6 mA Hysteresis, fixed value: 15 % Bus address: Bus terminating resistor R: Fault memory M: permanently activated Mode of operation K2: permanent N/C operation (n.c.) Password: 0, deactivated (Off) 4.3 Commissioning Checks must be carried out prior to commissioning to ensure that the residual...
  • Page 16 Installation and connection RCMA426H-DCB_D00066_00_M_XXEN/05.2014...

  • Page 17: Operation And Configuration

    5. Operation and configuration 5.1 Getting to know the user interface Green Power ON LED: Lights up when the power supply volt- age is connected and the device is run- ning. Red TPD alarm LED: Lights up when the rated residual op- erating current I is exceeded.

  • Page 18: Understanding Information On The Standard Display

    Operation and configuration 5.2 Understanding information on the standard display Abb.5.1: Standard display Measured value display in mA: Current type display AC / DC Password protection activat- Fault memory activated The actual measured residual current is displayed by default. Press the Up or Down button to display the factory-set rated residual operat- ing current I .

  • Page 19: Getting To Know Buttons And Button Functions

    Operation and configuration 5.3 Getting to know buttons and button functions The table below lists the functions of the buttons when navigating through the display, navigating through the menu and when making settings. From "chapter 5.7 Making settings in the menu" in the menu onwards, just the rele- vant button symbol is used to indicate that buttons have been pressed.

  • Page 20: Starting A Manual Self Test

    Operation and configuration 5.4 Starting a manual self test You can start a self test manually. During the test, any internal malfunctions detected are shown on the display as error codes. The alarm relay will be switched. To start a self test manually: Press and hold down the test button T (UP) for more than 1.5 seconds.

  • Page 21: Making Settings In The Menu

    Operation and configuration 5.7 Making settings in the menu 5.7.1 Selecting menus Press and hold down the MENU button for more than 1.5 seconds to call up the menu. Menus are available for a variety of settings. In turn, each menu has a number of submenus.

  • Page 22: Querying The Software Version With The Inf Menu

    Operation and configuration Menu/Button to call Description/Configurable parameters 4. Press the UP/DOWN buttons to go to the menu Go to the next highest menu level (Back) 5.7.2 Querying the software version with the InF menu 1. Select the InF menu 2.

  • Page 23: Making Settings In The Set Menu

    Operation and configuration 5.7.4 Making settings in the SEt menu This menu can be used to activate password protection, to modify the pass- word or to deactivate password protection. It is also where the device can be reset to the factory settings. 1.
  • Page 24 Operation and configuration Change pa- Change/activate/ Change/apply SEt menu Select submenu rameter value deactivate param. param. display 3. Deactivate password protection 4. Switch sub- menu 5. Restore fac- tory setting "run" appears on the display and the device is reset to the factory settings automatically.
  • Page 25 Operation and configuration Change pa- Change/activate/ Change/apply SEt menu Select submenu rameter value deactivate param. param. display 7. System menu (is locked) 8. Switch sub- menu 9. Go back to SEt menu RCMA426H-DCB_D00066_00_M_XXEN/05.2014...

  • Page 26: Querying And Erasing The Fault Memory In The His Menu

    Operation and configuration 5.7.5 Querying and erasing the fault memory in the HIS menu 1. Select the HIS menu. 2. Select the saved error and erase if applicable. 3. To go back to the menu level, press and hold down the ENTER button for more than 1.5 seconds.

  • Page 27: Technical Data

    6. Technical data 6.1 Data RCMA426H-DCB-2 in table form ( )* = factory setting Insulation coordination acc. to IEC 60664-1 / IEC 60664-3 Rated insulation voltage ............................250 V Overvoltage category/ pollution degree........................III/3 Rated impulse voltage...............................4 kV Protective separation (reinforced insulation) between.......... (A1, A2) - (k/l, T/R) - (21, 22, 24) Voltage tests according to IEC 61010-1......................
  • Page 28 Technical data Displays, memory Display range. AC/DC measured value ......................0…40 mA Resolution of setting ............................0.1 mA Error of indication 0…20 Hz ..................-33 %…+100 % / ± 2 digits Error of indication 20…90 Hz ....................0…20% / ± 2 digits Error of indication 90…150 Hz ....................
  • Page 29 Technical data Classification of mechanical conditions acc. to IEC 60721: Stationary use (IEC 60721-3-3) ..........................3M4 Transport (IEC 60721-3-2) ............................. 2M2 Long-term storage (IEC 60721-3-1) ........................1M3 Connection For UL application....................use 60/70 °C copper conductors only Connection type ..........................screw terminals rigid/ flexible/ conductor sizes ..............

  • Page 30: Error Codes

    Check contactor: e.g. contacts sticking, release coil faulty Error codes > 04 Action: E… Perform a reset. Restore the device to the factory setting. Should the error persist, contact Bender Service. The error code will be erased automatically once the error has been eliminated. RCMA426H-DCB_D00066_00_M_XXEN/05.2014...

  • Page 31: Recommended Contactors

    Technical data 6.3 Recommended contactors The ABB types listed below have undergone performance testing: Auxilary contact Main contact Contactor type A16-30-10-84 A26-30-10-84 A40-30-10-84 A75-30-00-84 A110-30-00-84 A145-30-00-84 A16-30-10-34 A26-30-10-34 A40-30-10-34 A75-30-00-34 A110-30-00-34 A145-30-00-34 A16-40-00-84 A26-40-00-84 A45-40-00-84 A75-40-00-84 EK150* -40-22 A16-40-00-34 A26-40-00-34 A45-40-00-34 A75-40-00-34 EK150** -40-22...

  • Page 32: Response Times Of The Rcma426H System Plus Contactor In Accordance With Ul943

    Technical data 6.4 Response times of the RCMA426H system plus contactor in accordance with UL943 RCMA426H-DCB_D00066_00_M_XXEN/05.2014...

  • Page 33: Ordering Information

    Art. No.: with screw terminal B 9404 3020 with push-wire terminal B 7404 3020 *Absolute values of the voltage range RCMA426H-DCB accessories Mounting clip for screw fixing (1 per device)................... B 9806 0008 External alarm indicator and test combination Type Art. No.

  • Page 34: Standards, Approvals And Certifications

    Technical data 6.6 Standards, approvals and certifications 6.7 Label for modified versions There will only be a label in this field if the device is different from the standard version. RCMA426H-DCB_D00066_00_M_XXEN/05.2014...

  • Page 35: Index

    INDEX Accessories 33 Malfunction 11 Adr menu 22 Manual, target group 5 Menu, settings 21 Multi-conductor connection 29 Button functions 19 Operation and configuration 17 Commissioning 15 Ordering information 33 Description of function 9 Parameter setting Device features 9 - Activating or deactivating the pass- Device test 9 word protection 23 Dimension diagrams 13...
  • Page 36 screw terminals 29 Self test, automatic 11 Self test, manual 11 Set bus address 22 SEt menu 23 Technical data 27 To call up the menu 20 To exit the menu 20 Wiring diagram 14 Work activities on electrical installations 7 RCMA426H-DCB_D00066_00_M_XXEN/05.2014...
  • Page 37 RCMA426H-DCB_D00066_00_M_XXEN/05.2014...
  • Page 38 RCMA426H-DCB_D00066_00_M_XXEN/05.2014...
  • Page 40 D0006600MXXEN 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 Web: http://www.bender.de...

Table of Contents