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Following LEDs are used on the
Qc4002™
The main Qc4002™ control unit
includes 5 LEDs
1Alarm LED flashing indicates that
unacknowledged alarms are present.
LED fixed light indicates that ALL
alarms are acknowledged.
2Power LED indicates that the auxiliary
supply is switched on.
3 Self check
OK
LED indicates that the self check is
OK.
4Alarm
inhibit
Please refer to Alarm inhibit in the
chapter ‘Additional functions’.
5Run LED indicates that the generator is
running.
6 Generator
voltage
LED green light indicates that the
voltage/frequency is present and OK.
Qc4002
G
!
OK
LOG
5
1
67 8
2
3
4
10
9
7 (GB) ON LED green light indicates that the
generator breaker is closed.
LED yellow light indicates that the
generator breaker has received a
command to close on a black BUS,
but the breaker is not yet closed due to
interlocking of the GB.
LED is flashing orange if the ‘Spring
load time’ signal from the breaker is
missing.
8(MB) ONLED indicates that the mains breaker
is closed.
9 Mains
voltage
LED is green, if the mains is present
and OK.
LED is red at a measured mains
failure.
LED is flashing green when the mains
returns during the ‘mains OK delay’
time.
10 Auto LED indicates that auto mode is
selected.
1Power Green LED indicates that the voltage
supply is switched on.
2 Self check
OK
Green LED indicates that the unit is
OK.
3Alarm
inhibit
Green LED indicates that the inhibit
input is ON.
4 CAN 2
5 CAN 1
3
2
1
5
4
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