HELI CPD15, Operation & Service Manual

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Request microswitch stuck.
c) < STANDBY HIGH CURRENT >
Test carried out in standby, checks that the current is nil. If this is not verified, an
alarm is signalled. This alarm shuts down the machine.
Possible causes:
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Current sensor broken and logic failure.
First replace the logic, and if the defect persists, replace the power unit.
d) < CURRENT ALWAYS EQUAL 0 >
Test carried out in running. Checks that the current during running is greater than a
minimum value. If not, an alarm is signalled and the machine is shut down.
Possible causes:
●
The current sensor is faulty. Replace the power unit.
e) < WATCH-DOG >
The test is made in both running and standby. It is a self-diagnosis test within the
logic. If an alarm should occur, replace the logic.
f) < COIL SHORTED >
Cause:
This alarm occurs when there is a short circuit of LC coil connected to driver output
of the HP CAN. After the overload condition has been removed, the alarm exits
automatically by releasing and then enabling an hydraulic demand.
Troubleshooting:
●
The typical root cause for this error code to be displayed is in the harness or in
the load coil. So the very first check to carry out concerns connections between controller
outputs and loads.
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In case no failures/problems have been found