4.2 LED functions
The display unit holds 10 LED functions. Dependent on the situation, the colour of the LEDs is green, red or a
combination. The table below describes the functionality of the LEDs on the CGC 400:
LED no. LED name LED function
1: Alarm LED steady light indicates that all alarms are acknowledged, but some are still
present.
2 : Power LED indicates that the auxiliary supply is switched on. If it is green, the controller is
operational. If it is red, the self-check has failed.
LED flashing indicates that unacknowledged alarms are present.
3: 4 x LED 4 x LEDs with selectable indication function. Selection is made in M-Logic.
4: MAN LED steady light indicates that Manual mode is active.
LED flashing green indicates that Block mode is active.
5: AUT LED indicates that Auto mode is active.
6: Mains
OK
LED is green if the mains is present and OK.
LED is red at a mains failure.
LED is flashing green when the mains returns during the "mains OK delay" time.
7: MB on LED indicates that the mains breaker is closed.
8: GB on LED indicates that the generator breaker is closed.
9: Hz/V ok LED indicates that voltage and frequency is present and OK.
10: Run LED indicates that running feedback is present.
CGC 400 quick start guide 4189340849 UK Display push-buttons and LEDs
DEIF A/S Page 9 of 10
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