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Gardner Denver
8 Starting and
Operating
27
8.8 Warnings/Faults/Power
Failures
8.8.1
Warnings – machine will continue to run
These are messages which are displayed when a
monitored parameter is exceeded but not by enough to
warrant shutting down the compressor.
For example, if the compression temperature should
reach 59°C, a flashing warning symbol (
) will appear
on the screen with an explanatory message. The red
LED and “Fault History” tab will also flash but the
machine will keep running.
If the problem is rectified and the temperature lowers,
the warning message will remain on the screen and the
symbol, LED and tab will keep flashing until the warning
has been reset (
Fault History
>
button
). The
warning can be acknowledged whether the machine is
stopped or running.
8.8.2
Faults – machine will stop automatically
These are messages which are displayed when a
monitored parameter is exceeded by enough to warrant
shutting down the compressor automatically for safety
reasons or to prevent damage to the machine.
For example, if the compressor’s discharge temperature
should reach 65°C, the controller will shut the machine
down and a flashing fault symbol (
) will appear on
the screen with an explanatory message. The “Fault
History” tab will also flash but in this case, the red LED
will flash rapidly.
The compressor cannot be re-started until the cause of
the overheating has been rectified and the fault re-set
(Fault History >
button
)
.
8.8.3 Power
Failures
In the event of power failure (Fault
Power Supply
Failure
), the light-emitting diode test is activated
when power returns.
The test must be acknowledged before the machine
can be re-started
(Fault History>
button
).
In the remote start mode, however, all that is required is
a new REMOTE ON pulse with which the fault is
automatically acknowledged in the Fault History.