Related Manuals for Bender RCMA421H
Summary of Contents for Bender RCMA421H
- Page 1 Manual RCMA421H WN-35BS Residual current monitor for monitoring AC, DC and pulsed DC currents in earthed and resistance earthed systems Software version D309 V1.0x RCMA421H_D00069_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.
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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 Device-specific safety information ............ - Page 4 5.7.3 Making settings in the SEt menu ............. 23 5.7.4 Querying and erasing the fault memory in the HIS menu ..... 25 6. Technical data ....................27 Data RCMA421H-D-2 in table form ............27 Error codes ....................... 30 Recommended contactors ................ 31 Response times of the RCMA421H system plus contactor in accordance with UL943 .............
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Page 5: Making Effective Use Of This Document
Info symbol. 1.2 Intended use The AC/DC sensitive residual current monitor RCMA421H with its measuring current transformer WN-35BS 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 RCMA421H_D00069_00_M_XXEN/05.2014...
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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: Device-Specific Safety Information
The relevant serial number for the trans- former is imprinted on the enclosure of the RCMA421H. The residual current monitor and the measuring current transformer assigned to it may only be used or inter- changed in pairs. -
Page 9: Function
3.2 Description of function The RCMA421H runs a device test when the power supply voltage is connect- ed. 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 The device will check the circuit for the presence of residual currents even dur- ing the self test. An external measuring current transformer (e.g. WN-35BS) is used for residual current measurement. The actual measured value is indicated on the LCD. If the rated residual operating current of 6 mA is exceeded, the alarm relay K2 will change to the alarm state and the TRP alarm LED will light up. -
Page 11: Self Test, Automatic
Function 3.2.3 Self test, automatic The device runs a self test every 24 h. Any internal malfunctions detected are shown on the display as error codes. The automatic self test is carried out without internal fault current. The alarm relay is not switched during the 24-h test. -
Page 12: Factory Setting Fac
Function 3.2.7 Factory setting FAC Activating the factory setting will reset all modified settings, with the excep- tion of the device address, to the default upon delivery. 3.2.8 Erasable history memory HiS The first alarm value to occur is written to this memory. The memory can be erased via the HiS menu. -
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 RCMA421H dimension diagram and drawing for screw fixing The front plate cover is easy to open at the lower part marked by an arrow. RCMA421H_D00069_00_M_XXEN/05.2014... - Page 14 Installation and connection Dimension diagram for measuring current transformer WN-35BS 51,20 Dimensions in mm RCMA421H_D00069_00_M_XXEN/05.2014...
- Page 15 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.
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Page 16: Factory Setting
Installation and connection Conductor colours for measuring current transformer Colour Colour assignment assignment brown black orange pink violet 4.2 Factory setting Rated residual operating cur- rent, fixed value: 6 mA Hysteresis, fixed value: 15 % Fault memory M: permanently activated Mode of operation K2: permanent N/C operation (n.c.) -
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 voltage is connected and the device is running. Red TPD alarm LED: Lights up when the rated residual operat- ing current I is exceeded. -
Page 18: Understanding Information On The Standard Display
Operation and configuration 5.2 Understanding information on the standard display Fig. 5.1: Standard display Measured value display in mA: Current type display AC / DC Password protection activated 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) or external test button for ... -
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 5.7.3 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 factory set- ting "run" appears on the display and the device is reset to the factory settings automatically.
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Page 25: Querying And Erasing The Fault Memory In The His Menu
Operation and configuration Change pa- Change/activate/ Change/apply SEt menu Select submenu rameter value deactivate param. param. display 8. Switch sub- menu 9. Go back to SEt menu 5.7.4 Querying and erasing the fault memory in the HIS menu 1. Select the HIS menu. 2. - Page 26 Operation and configuration HiS menu Error display/Submenu 5. Erase fault memory 6. Switch error display 7. Go back to HiS menu RCMA421H_D00069_00_M_XXEN/05.2014...
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Page 27: Technical Data
6. Technical data 6.1 Data RCMA421H-D-2 in table form ( )* = factory setting Insulation coordination acc. to IEC 60664-1 / IEC 60664-3 RCMA421H-D-2: Rated insulation voltage ............................250 V Overvoltage category/ pollution degree........................III/3 Rated impulse voltage.............................. 4 kV Protective separation (reinforced insulation) between.......... - 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 Flammability class ............................. UL94V-0 DIN rail mounting acc. to..........................IEC 60715 Screw fixing.......................... 2 x M4 with mounting clip Software version ............................D309 V1.0 Weight RCMA421H ............................≤ 150 g Weight WN-35BS ............................. ≤ 355 g ( )* = factory setting RCMA421H_D00069_00_M_XXEN/05.2014...
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Page 30: Error Codes
Action: E… Perform a reset. Restore the device to the factory setting. Should the error persist, contact Bender Service. After removing the CT mains connector, the error code E.03 / E.04 alternately appears on the display. The error code will be erased automatically once the error has been eliminated. -
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 Rcma421H System Plus Contactor In Accordance With Ul943
Technical data 6.4 Response times of the RCMA421H system plus contactor in accordance with UL943 RCMA421H_D00069_00_M_XXEN/05.2014... -
Page 33: Ordering Information
B 7404 3019 *Absolute values of the voltage range External measuring current transformer Type Internal diameter (mm) Art. No. WN-35BS B 9808 0044 RCMA421H accessories Mounting clip for screw fixing (1 per device)................... B 9806 0008 6.6 Standards, approvals and certifications RCMA421H_D00069_00_M_XXEN/05.2014... -
Page 34: Label For Modified Versions
Technical data 6.7 Label for modified versions There will only be a label in this field if the device is different from the standard version. RCMA421H_D00069_00_M_XXEN/05.2014... -
Page 35: Index
INDEX Accessories 33 Installation and connection 13 Button functions 19 Malfunction 11 Manual, target group 5 Menu, settings 21 Commissioning 16 Multi-conductor connection 29 Conductor colours for measuring current transformer 16 Operation and configuration 17 Ordering information 33 Description of function 9 Device features 9 Device test 9 Parameter setting... - Page 36 RS-485 interface 13 screw terminals 29 Self test, automatic 11 Self test, manual 11 Set bus address 23 SEt menu 23 Technical data 27 To call up the menu 20 To exit the menu 20 Wiring diagram 15 Work activities on electrical installations 7 RCMA421H_D00069_00_M_XXEN/05.2014...
- Page 37 RCMA421H_D00069_00_M_XXEN/05.2014...
- Page 38 RCMA421H_D00069_00_M_XXEN/05.2014...
- Page 40 D0006100MXXEN 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...