fiac AIRBLOK 40, Use And Maintenance Manual, Page: 26 / 68

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5 USING THE COMPRESSOR
2.
This points out that the oil separator filter in the separator tank is clogged. Replace the filter as soon
as possible.
3.
This points out that the pre-established maintenance time has expired. Carry out the maintenance jobs
stated herein. To reset the maintenance hours, see item 1 and 2 of the “MAINTENANCE” menu.
Note! If the alarm flashes without the display indicating the cause, press the “UP” and
“DOWN” arrow keys on the push button control panel together at the same time to
view an indication on the cause.
INVERTER ALARMS Stopped and Started
In the case of an anomaly or fault in the inverter, some alarms appear on the control unit on two different
lines of the viewer: STATUS WORD1 and STATUS WORD2 with a number of special codes that identify
the type of fault and possible solution. These alarms cause the compressor to stop. The alarm is pointed
out by the red flashing LED and buzzer. A list of all the types of alarms that may trigger together with their
possible solutions follows below. The following could appear on the display:
1.
Short-circuit in motor cables or motor.
To restore machine operation:
Eliminate the cause for the fault.
Press the RESET button on the keypad of the ACS550 INVERTER inside the electric cabinet.
Press the “RESET” key on the control board to set the compressor ready to start again.
2.
Excessive output current.
THE COMPRESSOR STOPS!
Solution:
Check the motor load. Check the motor and the motor cable (including the timing). Ensure there are
no correction condensers of the power factor or input circuits of the transistors in the motor cable.
To restore machine operation:
Eliminate the cause for the fault.
Press the RESET button on the keypad of the ACS550 INVERTER inside the electric cabinet. Then press
also the “RESET” key on the control board to set the compressor ready to start again.
3.
Excessive dc voltage in the intermediary circuit.
THE COMPRESSOR STOPS!
WARNING
OIL SEPAR. FILTER
WARNING
MAINTENANCE TIME
STATUS WORD1: 00008
STATUS WORD1: 00001
STATUS WORD1: 00002