4.2.2.1.
Menu system of parameters ............ 30
4.2.2.2.
How to change settings .................. 31
4.2.2.3.
Configuration ................................ 34
4.2.2.4.
How to acknowledge and reset
indications, output contacts and
memorized values ......................... 37
4.3.
Protection relay indications ........................................ 38
4.3.1.
Indicator LEDs ............................................ 38
4.3.1.1.
Green indicator LED ...................... 38
4.3.1.2.
Yellow indicator LED ...................... 39
4.3.1.3.
Red indicator LED ......................... 39
4.3.1.4.
Programmable indicator LEDs ......... 40
4.3.2.
Indication messages..................................... 40
4.3.2.1.
Operation indication messages ........ 40
4.3.2.2.
Disturbance recorder indication........ 41
4.3.2.3.
Self-supervision............................. 41
4.4.
Detachable plug-in unit ............................................. 44
4.4.1.
Identifying the product .................................. 44
4.4.2.
Detaching and installing the plug-in unit........... 45
4.4.3.
Inserting and changing the battery .................. 47
5. Commissioning and maintenance............................. 49
5.1.
Commissioning instructions ....................................... 49
5.2.
Maintenance instructions........................................... 50
5.2.1.
Relay verification ......................................... 50
5.2.2.
Preventive parts replacement......................... 51
5.3.
Measurements verification ......................................... 51
5.4.
Function test ........................................................... 51
5.5.
Digital input test....................................................... 53
5.6.
Testing protection functions ....................................... 53
5.6.1.
Testing overvoltage protection ........................ 53
5.6.2.
Testing residual voltage protection .................. 54
6. Spare parts ............................................................ 55
6.1.
Plug-in unit ............................................................. 55
6.2.
Battery ................................................................... 55
7. Repair .................................................................... 57
8. Ordering information ............................................... 59
9. Abbreviations ......................................................... 61
4
REU 610
REU 610
Voltage Protection Relay
Operator's Manual
1MRS755770
