51
Switch Function Default setting
SGF1/5 Minimum pulse length for PO1, PO2 and PO3 0
*
0=80 ms
*
1=40 ms
The latching feature being selected for PO1, PO2
and PO3 will override this function.
SGF1/6 CBFAIL 0
*
0 =CBFAIL is not in use
*
1 = the signal to PO1 will start a timer which will generate a
delayed signal to PO2, provided that the fault is not cleared
before the CBFAIL operate time has elapsed.
SGF1/7 Restart disable function 0
*
When the switch is in position 0, the restart disable signal will
be routed to PO3.
*
When the switch is in position 1, the restart disable signal will
not be routed to PO3.
SGF1/8 External fault warning 0
*
When the switch is in position 1, the warning signal from the
trip-circuit supervision is routed to SO2.
To avoid conflicts, SGR5 should be set to 0 when
SGF1/8=1.
ΣSGF1 0
Table 5.1.4.12.-3 SGF2
Switch Function Default setting
SGF2/1 Operation mode of the alarm target of element 49 0
SGF2/2 Operation mode of the pickup target of element 48/14
a)
0
SGF2/3 Operation mode of the pickup target of element 50P
a)
0
SGF2/4 Operation mode of the pickup target of element 37
a)
0
SGF2/5 Operation mode of the pickup target of element 51N 0
SGF2/6 Operation mode of the pickup target of element 46 0
SGF2/7 Operation mode of the alarm target of element 49/38-1 0
SGF2/8 Operation mode of the alarm target of element 49/38-2 0
*
0 = the pickup target will automatically be cleared once the fault
has disappeared
*
1 = latching. The pickup target will remain active although the
fault has disappeared.
ΣSGF2 0
a)
In addition, the phase(s) which caused the pickup will be shown on the LCD.
Motor Protection Relay
Technical Reference Manual - ANSI Version
REM 610REM 610
1MRS755537
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