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Example 2:
8
Trip-test function. Forced activation of the out-
puts is made as follows:
a)
Step forward on the display to register 0.
b)
Press the RESET button for about 10 seconds
until the three green digits to the right and the
LED indicator of the uppermost setting knob
start flashing.
c)
Press the push-buttons RESET and STEP si-
multaneously. Then the starting of stage 1 (e.g.
the I>-stage of the overcurrent module SPCJ
3C3) is activated and, simultaneously, the indi-
cator of the stage starts glowing yellow.
d)
Press the RESET button for about 1 second
until the indicator of the second setting knob
starts flashing.
e)
Press the push-buttons RESET and STEP si-
multaneously to activate tripping of stage 1 (e.g.
the I>-stage of the overcurrent module SPCJ
3C3). The indicator of the concerned stage
starts glowing red.
f)
Starting and tripping of the second stage is
activated in the same way as stage 1. The indica-
tor of the third or fourth setting starts flashing to
indicate that the concerned stage has been acti-
vated.
g)
To activate the self-supervision output step to-
wards the test position, where no indicator is
flashing. Press the STEP button once. In about
5 seconds the red IRF indicator starts glowing
and the IRF output is activated. Shortly thereaf-
ter the indicator goes out and the output auto-
matically resets. At the same time the module
leaves the test position.
h)
It is possible to leave the trip test mode at any
step of the sequence scheme by pressing the
RESET button for about 10 seconds until the
three digits to the right stop flashing.
ABB Automation
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