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RCMA423

Residual current monitor 

for monitoring AC- and (pulsed) DC-currents 

I

Δ

 = 10 mA…3 A

in TN- and TT systems 

RCMA423_D00063_03_M_XXEN/03.2021

Manual EN

Summary of Contents for RCMA423

Page 1: ...RCMA423 Residual current monitor for monitoring AC and pulsed DC currents I 10 mA 3 A in TN and TT systems RCMA423_D00063_03_M_XXEN 03 2021 Manual EN...

Page 2: ...any Londorfer Strasse 65 35305 Gr nberg 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 Reprinting only with permission of the p...

Page 3: ...isposal 9 2 Safety instructions 10 2 1 General safety instructions 10 2 2 Work activities on electrical installations 10 2 3 Intended use 11 3 Function 12 3 1 Device features 12 3 2 Function 12 3 2 1...

Page 4: ...5 1 Parameter query and setting overview 22 5 5 2 Response value setting for overcurrent 25 5 5 3 Setting the fault memory and alarm relay operating mode 26 5 5 4 Assigning alarm categories to the ala...

Page 5: ...pt any liability for injury to persons or damage to property resulting from errors or mistakes in this manual This manual is intended for qualified personnel working in electrical engineering and elec...

Page 6: ...BenderHelp Tel and Fax E mail support bender service de 1 2 2 Repair service Repair calibration update and replacement service for Bender products Repairing calibrating testing and analysing Bender pr...

Page 7: ...6401 807 753 sales Fax 49 6401 807 759 E mail fieldservice bender service de Internet www bender de Available from 7 00 a m to 8 00 p m 365 days a year CET UTC 1 Mo Thu 7 00 a m 8 00 p m Fr 7 00 a m 1...

Page 8: ...stored in areas where they are protected from dust damp and spray and dripping water and in which the specified storage tem peratures can be ensured 1 6 Warranty and liability Warranty and liability...

Page 9: ...of certain hazardous substances in electri cal and electronic equipment RoHS directive apply in the European Commu nity In Germany these policies are implemented through the Electrical and Electronic...

Page 10: ...dards and regulations must be complied with The European stand ard EN 50110 can be used as a guide Only qualified personnel are permitted to carry out the work necessary to install commission and run...

Page 11: ...ustable response ranges allow to distinguish between prewarning I n1 50 100 of the set response value I n2 and main alarm I n2 Since the values are measured with measuring current transformers the RCM...

Page 12: ...y voltage Us is applied the start up delay is activated Measu red values changing during this time do not influence the switching state of the alarm relays Residual current measurement takes place via...

Page 13: ...reset button R A second cascaded measuring current transformer will not be monitored 3 2 2 Fast response value query With the display in standard mode the currently measured response values I n1 and...

Page 14: ...ored 3 2 7 Assigning alarm categories to alarm relays K1 K2 The alarm categories deviceerror residualcurrent I n1 residualcurrent I n2 or alarm by device test can be assigned to the alarm relays via t...

Page 15: ...the device See page 30 3 2 10 Password protection on OFF When the password protection is activated on settings are only possible af ter entering the correct password 0 999 3 2 11 Factory setting FAC A...

Page 16: ...rry 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 Damage t...

Page 17: ...cts bey ond the enclosure Then fix the device using two M4 screws 2 Wiring Connect the device according the wiring diagram Observe the manu als of the respective measuring current transformer Terminal...

Page 18: ...nt Function RL Reload function with memory off L I I2 Response value I n2 as mA Alarm 2 main alarm I1 Response value I n1 as of I n2 Alarm 1 prewarning r1 1 r2 2 Alarm relay K1 Alarm relay K2 I Hys Re...

Page 19: ...rm 2 lights yellow Res ponse value 2 reached I n2 13 mA M 13 mA flow through the measuring current transformer fault memory active T Test button 1 5 s to indicate the display elements in use to start...

Page 20: ...ective function Menu Sub Menu Menu item Activati on Adjustable parameter AL response values I2 Hi I n2 Alarm 2 main alarm I1 Hi I n1 as of I n2 Alarm 1 prewarning Hys Hysteresis I n1 I n2 out output c...

Page 21: ...sponse delay K1 t on 2 Response delay K2 T Start up delay t off Delay on release K1 K2 Set device con trol I 12 HI Selectable parameters High window function low off Parameter setting via pass word FA...

Page 22: ...C operation n c individually for each K1 K2 Specify the number of the reload cycles Assign the alarm category I1 I n1 or I2 I n2 relay test or device error individually to K1 K2 1 r1 2 r2 t Set delays...

Page 23: ...Operation and setting 23 RCMA423_D00063_03_M_XXEN 03 2021 Menu structure AL out t SEt InF HiS ESC M m A t 1 5 s t 1 5 s t 1 5 s t 1 5 s t...

Page 24: ...e parameter response value I1 The para meter I1 flashes in addition the associated percentage value for prewarning 50 of I2 appears 4 Confirm with Enter The current value for prewarning appears on the...

Page 25: ...2 Response value I1 overcurrent I n1 Hysteresis Hys of the response values I n1 I n2 Increasing the response value I2 main alarm overcurrent Increasing the response value I1 prewarning overcurrent Set...

Page 26: ...M_XXEN 03 2021 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 M...

Page 27: ...rent 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 Alarm relay K1 D...

Page 28: ...ting 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...

Page 29: ...the device is being started Common delay on release toff 0 99 s for K1 K2 The setting toff is only relevant when the fault memory M is deactivated The operating steps for the setting of the response d...

Page 30: ...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 7 Fac...

Page 31: ...Operation and setting 31 RCMA423_D00063_03_M_XXEN 03 2021 b Changing the password c Deactivating the password protection on 12 I 2x 1 5 s on off off 12 I 2x 1 5 s...

Page 32: ...a scrolling text Once one pass is completed you can select individual data sections using the Up Down keys 5 5 9 History memory query The history memory can be selected via the menu HiS Use the Up and...

Page 33: ...nse value overcurrent I1 prewarning overcurrent I2 main alarm Hysteresis Fault memory M Operating mode K1 K2 Start up delay Response delay Delay on release Password 15 mA 50 of I2 30 mA 15 activated o...

Page 34: ...minating the fault the error code will be automatically deleted E 02 Fault CT connection monitoring during manual self test Appropriate action Check CT connection for short circuit or interruption Aft...

Page 35: ...rangeUs AC24 60V DC24 78V OperatingrangeUs AC16 72V DC9 6 94V Frequency range Us DC 42 460 Hz RCMA423 D 2 Supply voltage range Us AC DC 100 250 V Operating range Us AC DC 70 300 V Frequency range Us 4...

Page 36: ...larm 0 10 s 0 s Delay on release toff 0 99 s 1 s Operating time tae for I n 1 x I n1 2 180 ms Operating time tae for I n 5 xI n1 2 30 ms Response timetan tan tae ton1 2 Recovery time tb 300 ms Display...

Page 37: ...EMC EMC EN 61326 1 Ambient temperatures Operating temperature 25 55 C Transport 25 70 C Long term storage 25 55 C Classification of climatic conditions acc to IEC 60721 Stationary use IEC 60721 3 3 3...

Page 38: ...re terminals Connection properties Rigid 0 2 2 5 mm2 AWG 24 14 Flexible without ferrules 0 75 2 5 mm2 AWG 19 14 Flexible with ferrules 0 2 1 5 mm2 AWG 24 16 Stripping length 10 mm Opening force 50 N T...

Page 39: ...RCMA423 D 2 Response range I n 30 mA 3 A 30 mA 3 A Rated frequency 0 2000 Hz 0 2000 Hz Supply voltage Us DC 9 6 94 V AC 42 460 Hz 16 72 V DC 70 300 V AC 42 460 Hz 70 300 V Art No B7 push wire terminal...

Page 40: ...ter mm Shielded Art No CTUB101 CTBC20 20 mm B78120010 CTUB101 CTBC20P X B78120020 CTUB101 CTBC35 35 mm B78120012 CTUB101 CTBC35P X B78120022 CTUB101 CTBC60 60 mm B78120014 CTUB101 CTBC60P X B78120024...

Page 41: ...nt revision history Date Document version State Changes 03 2021 03 Editorial revision Chapter 4 Wiring diagram Chapter 6 3 relative uncertainty for f min contact load operating uncertainty Chapter 6 5...

Page 42: ...Data 42 RCMA423_D00063_03_M_XXEN 03 2021...

Page 43: ...nstallation and connection 16 Intended use 11 K K1 K2 assignment alarm category 20 L LED Alarm 1 lights 19 LED Alarm 2 lights 19 M Manual self test 13 Measuring current transformer connecting cable 40...

Page 44: ...19 Residual current monitoring in window discriminator mode 15 Residualoperatingcurrentrangesofthedif ferentmeasuringcurrenttransformers 39 Response delay ton 14 S Select the appropriate parameter fo...

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Page 48: ...der GmbH Co KG PO Box 1161 35301 Gr nberg Germany Londorfer Strasse 65 35305 Gr nberg Germany Tel 49 6401 807 0 Fax 49 6401 807 259 E Mail info bender de www bender de Photos Bender archives BENDER Gr...

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