RESTART DISABLE
66
A040273_2
Fig. 4.3.2.1.-4 Restart disable target
Latching and non-latching targets
A latching operation target message remains on the display until manually cleared or
until replaced by a message of higher priority. However, if the fault is stable and has
not disappeared, the operation target message and the LED(s) are not cleared. An
operation target generated by a non-latching pickup is automatically cleared when
the element is reset.
Priority of operation target messages
The messages on the display have a certain priority order. If different types of targets
are activated simultaneously, the message with the highest priority appears on the
display.
The priority order of the messages:
1. CBFAIL
2. Trip
3. Pickup/Alarm
4. Restart disable
4.1. Thermal protection
4.2. Cumulative start-up time counter
4.3. External restart disable
When several protection elements generate pickups or alarms, the last pickup/alarm
target message is displayed. When several protection elements trip, the first trip
target message is displayed until the time, as specified by the NEW TRIP IND.
setting value, has expired. After this, a new trip target message can replace the old
one. A hidden trip target message can be brought forward by pressing
.
4.3.2.2. Disturbance recorder target
When the display is in the idle mode, an asterisk “*” indicating that the disturbance
recorder has been triggered and is ready to be unloaded, is shown in the lower right-
hand corner of the display. Disturbance recorder status target can also be routed to
the programmable LEDs.
42
REM 610REM 610
Motor Protection Relay
Operator's Manual - ANSI ve rsion
1MRS755538
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