Atlas Copco QAS 60 Pd - Page 36

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Following LEDs are used on the Qc2002™:
5
AUTOMATIC: Is used to put the
unit in manual or automatic
operation.
6
START: Is used to start the unit in
manual operation.
7STOP: Is used to stop the unit in
manual or automatic operation
(without cooldown). When the unit is
stopped with the STOP button in
automatic operation, it will
automatically go to manual
operation.
8 GENERATOR
CONTACTOR: Is used to
open or close the Generator
contactor, if the Qc2002™
is in manual operation
9 MAINS CONTACTOR:
Is used to open or close the
Mains contactor, if the
Qc2002™ is in manual
operation.
G
1Power Green LED indicates that the
unit is powered up.
2Automatic Green LED indicates that the
Qc2002™ is in automatic
operation.
3Start/Stop Green LED indicates that the
Qc2002™ receives running
feedback (via the W/L input, via
the RPM value at the Canbus, or
via the AC frequency).
4U/F OK Green LED indicates that the
voltage/frequency is present
and OK.
5 Generator
contactor
Green LED indicates that the
voltage and the frequency of the
alternator are within certain
limits for a certain time. It will
be possible to close the
Generator Contactor (both in
Island and in AMF mode), if the
Mains contactor is open.
Qc2002
1.00.1
G
1
8
3
2
4
5 7
6
6Mains
contactor
Green LED indicates that it is
possible to close the Mains
Contactor (only in AMF mode),
if the Generator contactor is
open.
7Mains
voltage
LED is green, if the mains is
present and OK.
LED is red when a mains failure
is detected.
LED is flashing green when the
mains returns during the ‘mains
OK delay’ time.
8Alarm Flashing red LED indicates that
an alarm is present. A
continuous red LED indicates
that the alarm has been
acknowledged by the user. The
exact alarm is shown on the
display.