Table of Contents
3
RCM420_D00057_03_M_ XXEN/03.2021
1. Important information .................................................................................... 7
1.1 How to use this manual ................................................................................. 7
1.2 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
1.3 Training courses ................................................................................................ 9
1.4 Delivery conditions .......................................................................................... 9
1.5 Inspection, transport and storage ........................................................... 10
1.6 Warranty and liability ................................................................................... 10
1.7 Disposal ............................................................................................................ 11
2. Safety instructions ......................................................................................... 12
2.1 General safety instructions ........................................................................ 12
2.2 Work activities on electrical installations ............................................. 12
2.3 Intended use ................................................................................................... 13
3. Function ........................................................................................................... 14
3.1 Device features .............................................................................................. 14
3.2 Function ............................................................................................................ 14
3.2.1 Connection monitoring .............................................................................. 15
3.2.2 Fast response value query ......................................................................... 15
3.2.3 Automatic self test ........................................................................................ 15
3.2.4 Manual self test .............................................................................................. 15
3.2.5 Functional faults ............................................................................................ 16
3.2.6 Set the number of reload cycles .............................................................. 16
3.2.7 Assigning alarm categories to alarm relays K1/K2 ............................ 16
3.2.8 Time delays t, ton and toff ....................................................................... 16
3.2.9 Residual current monitoring in window discriminator mode ...... 17