Related Manuals for Bender RCMA420
Summary of Contents for Bender RCMA420
- Page 1 RCMA420 Residual current monitor for monitoring AC, DC and pulsed DC currents in TN and TT systems Software version D242 V1.2x RCMA420_D00059_04_M_XXEN/05.2021 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.
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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 3.2.12 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. Operation and setting .................. 18 Display elements in use ................18 Function of the operating elements .............
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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
Important information Sale and delivery conditions can be obtained from Bender in printed or electronic 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. In the event of damage in transit, please contact Bender immediately. -
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 home- page 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
Safety instructions 2.3 Intended use The AC/DC sensitive residual current monitor RCMA420 is designed for use in earthed systems (TN and TT systems) where DC and AC fault currents may oc- cur. These are in particular loads containing six-pulse rectifiers or one way rec- tifiers with smoothing, such as converters, battery chargers, construction site equipment with frequency-controlled drives. -
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 Starting delay, response delay and delay on release ... -
Page 13: Connection Monitoring
Function The device function can be tested using the TEST button. The parameterizati- on of the device can be carried out via the LC display and the function keys in- tegrated in the front plate and can be password-protected. 3.2.1 Connection monitoring The CT connections are continuously monitored. -
Page 14: Functional Faults
3.2.5 Functional faults If an internal functional fault occurs, all three LEDs flash. An error code will ap- pear on the display (E01…E32). In such a case please contact the Bender Ser- vice. 3.2.6 Set the number of reload cycles... -
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 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 fixing Use a tool to move the rear mounting clips (a second mounting clip required, see ordering information) to a position that it projects bey-...
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Page 18: Operation And Setting
Operation and setting 5. Operation and setting 5.1 Display elements in use A detailed description of the meaning of the display elements in use is given in the table below. Ele- Display elements in use Function ment Reload function with memory = off (L = I.) Response value I as mA (Main alarm) Δn2... -
Page 19: Function Of The Operating Elements
Operation and setting 5.2 Function of the operating elements Device front Element Function LED lighting continuously: Power On green Flashing LED: System fault or con- nection monitoring fault AL1, LED Alarm 1 lights (yellow): 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 Activa- Menu Adjustable parameter Menu item tion t on 1 Response delay K1 t on 2 Response delay K2 (timing Starting delay check) t off Delay on release K1/K2 Selectable parameters: I 12 High, window function, low Parameter setting via password (device control) -
Page 22: Display In Menu Mode
Operation and setting 5.5 Display in menu mode Parameter query and setting: overview Menu item Adjustable parameter 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 relays: –... - Page 23 Operation and setting Menu item Adjustable parameter Query the first stored alarm value Move to the next higher menu level (back) Menu structure t > 1,5 s t > 1,5 s t < 1,5 s t > 1,5 s t < 1,5 s RCMA420_D00059_04_M_XXEN/05.2021...
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Page 24: Parameter Settings
Operation and setting 5.6 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 Operation and setting Increasing the response value I2 (main alarm overcurrent) > > > > Increasing the response value I1 (prewarning overcurrent). > > > > > Setting the hysteresis of the response value > RCMA420_D00059_04_M_XXEN/05.2021...
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Page 26: Setting The Fault Memory And Alarm Relay Operating Mode
Operation and setting 5.6.2 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 RCMA420_D00059_04_M_XXEN/05.2021... -
Page 27: Assigning Alarm Categories To The Alarm Relays
Operation and setting 5.6.3 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 CAUTION respective alarm LED (AL1/AL2)!
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Page 29: Set The Time Delays
Operation and setting 5.6.4 Set the time delays The following delays can be set: Response delay t (0…10 s) for K1, and t (0…10 s) for K2 Starting delay t (0…10 s) when the device is being started ... -
Page 30: Changeover: Overcurrent/Undercurrent/Window Mode
Operation and setting 5.6.5 Changeover: overcurrent/undercurrent/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. . >1,5 s 5.6.6 Factory setting and password protection Use this menu to activate the password protection, to change the password or to deactivate the password protection. - Page 31 Operation and setting b) Changing the password >1,5 s c) Deactivating the password protection >1,5 s RCMA420_D00059_04_M_XXEN/05.2021...
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Page 32: Device Information Query (Example)
Operation and setting Restoring factory settings ..5.6.7 Device information query (Example) This function is used to query the software (1.xx) version. 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) Response value overcurrent I2 (main alarm) 30 mA 15 % Hysteresis Fault memory M activated (on) Operating mode K1/K2 N/C operation (n.c.) Starting delay t = 0.5 s Response delay = 1 s... -
Page 34: Error Codes
Appropriate action when error codes > 02 occur: Carry out a reset. Reset the device to factory setting. After elimina- ting the fault, the error code will be automatically deleted. If the fault continues to exist, please contact the Bender Service. RCMA420_D00059_04_M_XXEN/05.2021... -
Page 35: Technical Data
Data 6.3 Technical data ( )* = factory setting Insulation coordination acc. to IEC 60664-1/IEC 60664-3 Insulation coordination acc. to IEC 60664-1/IEC 60664-3 RCM420-D-1 Rated insulation voltage ........................... 100 V Overvoltage category/ pollution degree ...................... III/3 Rated impulse voltage ..........................2.5 kV RCM420-D-2 Rated insulation voltage .......................... - Page 36 Data Relative uncertainty for ≤ 2 Hz ............................... 0…-35 % >2 Hz…<16 Hz ........................ -35 %…+100 % ≥ 16 Hz… ≤ 1000 Hz........................0…-35 % > 1000 Hz…≤ 2000 Hz ........................± 35% Operating uncertainty ............................ 0…35% Response values Rated residual operating current (prewarning, AL1) ..........50…100 % x , (50 %)* Δn1...
- 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 service life under rated operating conditions............ 10000 switching operations Contact data acc. to IEC 60947-5-1 Utilization category.............AC-13 ..AC-14..DC-12..DC-12..DC-12 Rated operational voltage ...........230 V ..230 V ...24 V ...
- Page 38 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............................
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Page 39: Standards, Approvals And Certifications
6.5 Residual operating current ranges of the different measuring current transformers Residual operating current ranges Type 10…500 mA CTUB101-CTBC20(P) CTUB101-CTBC35(P) 30 mA…10 A CTUB101-CTBC60(P) 6.6 Ordering information RCMA420-D-1 RCMA420-D-2 Response range 10…500 mA 10…500 mA Δn Rated frequency 0…2000 Hz 0…2000 Hz DC 70…300 V / DC 9.6…94 V /... - Page 40 — B78120014 60 mm CTUB101-CTBC60P B78120024 Measuring current transformer connecting cable Type Length (m) Art. No. CTX-100 B98110080 CTX-250 B98110081 CTX-500 B98110082 CTX-1000 B98110083 Accessories RCMA420 Mounting clip for screw fixing (1 piece per device) .................. B 9806 0008 RCMA420_D00059_04_M_XXEN/05.2021...
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Page 41: Document Revision History
Data 6.7 Document revision history Document Date State/Changes version 02.2020 Editorial revision Chapter 4. : Wiring diagram, Chapter 6.6: Ordering information CTUB… Chapter 6.3: Tolerance frequencies 05.2021 Editorial revision Terms prewarning + main alarm Chapter 6.3: min. contact load Added Chapter 6.4: UKCA logo RCMA420_D00059_04_M_XXEN/05.2021... - Page 42 Data RCMA420_D00059_04_M_XXEN/05.2021...
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Page 43: Index
INDEX Adjustable parameters, list 20 Installation 16 Automatic self test 13 Installation and connection 16 Intended use 11 Connection of an additional cascaded measuring current transformer 17 K1/K2: assignment alarm category 20 LED Alarm 1 lights 19 Delay on release toff 15 LED Alarm 2 lights 19 Deleting the fault alarms 19 Device features 12... - Page 44 Support 6 Parameter query and setting, overview 22 Parameter setting Technical data 33 - Activating or deactivating the pass- Test button 19 word protection 30 Training courses 7 - Assigning alarm categories to the alarm relays 27 - Changeover from overcurrent opera- Wiring diagram 17 tion to window operation 30 Work activities on electrical installations 10...
- 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...