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Trip-test mode
ABB Automation
Register 0 also allows access to the so called
Trip-test function, which allows the output
signals of the relay module to be activated one by
one. If the auxiliary relay module of the protec-
tion assembly is in place, the auxiliary relays will
be included in the testing.
When pressing the RESET button for about 10
seconds, the three green digits to the right start
flashing to indicate that the relay module is in
test position. The indicators of the setting knobs
indicate by flashing which output signal can be
activated. The required output function is se-
lected by pressing the RESET button for about
1 second, until the following LED indicator
starts flashing.
The indicators of the setting knobs refer to the
following output signals:
Setting knob 1
SS1
Setting knob 2
TS1
Setting knob 3
SS2
Setting knob 4
TS2
No indication
IRF
REGISTER 0
RESET
10 s
Fig. 4. Sequence order for selecting the output signals in the Trip-test mode.
If e.g. the indicator of the setting knob 2 (second
from the top) is flashing, and the push-buttons
STEP and RESET are being pressed, the signal
TS1 (tripping of stage 1) is activated. Return to
the main menu is possible at any stage of the
The selected starting or tripping is activated by
simultaneous pressing of the push-buttons STEP
and RESET. The signal remains activated as
long as the two push-buttons are being pressed.
The self-supervision output is activated by press-
ing the STEP button once when no setting knob
indicator is flashing. The IRF output is acti-
vated in about 5 seconds after pressing of the
STEP button, and resets after that. Simultane-
ously, the display returns to the main menu and
performs the initial testing indicated by rolling
digits 0...9 in the display several times.
The signals are selected in the order illustrated in
fig. 4.
Starting of stage 1
Tripping of stage 1
Starting of stage 2
Tripping of stage 2
Self-supervision
IRF
SS1
RESET
RESET
1 s
1 s
STEP
STEP+
RESET
Trip-test sequence scheme, by pressing the
RESET button for about 10 seconds. If the
module is left in the Trip-test mode, it will
return automatically after approx. 5 minutes.
TS1
SS2
RESET
RESET
1 s
1 s
STEP+
STEP+
RESET
RESET
TS2
RESET
1 s
STEP+
RESET
7
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