ABB REU 523 - Page 57

1MRS 750942-MUM
Combined Overvoltage and Undervoltage Relay
Technical Reference Manual
REU 523
57
I
IEC 60870-5-103........................................................................................ 34
Indication messages ..............................................................................29, 46
Input/output connections ............................................................................ 47
Input/output signals.................................................................................... 45
Inputs.................................................................................................... 11, 45
Internal relay fault .......................................................................... 12, 46, 49
L
Latching feature.......................................................................................... 23
LCD...................................................................................................... 11, 46
LED ................................................................................................12, 29, 46
LED test...................................................................................................... 30
Local parameterization............................................................................... 46
LON bus ......................................................................................................33
M
Master reset ................................................................................................ 32
Measurements............................................................................................. 12
Measuring range......................................................................................... 50
N
New trip indication..................................................................................... 27
Non-volatile memory............................................................................ 11, 28
O
Ordering information.................................................................................. 54
Output signals .............................................................................................45
Overvoltage unit......................................................................................... 14
P
Parameterization..........................................................................................46
Parameters for the disturbance recorder............................................... 42, 62
Password................................................................................................11, 39
Positive-phase-sequence..............................................................................16
Power outputs (PO1, PO2) ....................................................... 11, 46, 49, 51
Power supply ..............................................................................................50
Product functions........................................................................................ 10
R
Recorded data....................................................................................... 32, 41
Requirements................................................................................................ 8
S
Safety information........................................................................................ 7
Self-supervision.....................................................................................12, 46
Serial communication........................................................................... 33, 49
Setting groups........................................................................................20, 60
Settings .................................................................................................20, 40