Gardner Denver GD Pilot, Original User Manual

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6. Error rectification
24
[Indication] / Problem Possible cause Remedy
A fault/warning cannot be
acknowledged Fault/warning still in place Find cause and remedy
No indication on the display Machine not energised Check fuses, replace if necessary
Pressure and temperature
indicator failed, indicator (----) Ground fault or short circuit for sensor B1,
B2 or R2 Check fuses, changing if necessary
Incorrect display of volumetric
flow
Volumetric flows incorrectly set.
Check max. and min. volumetric flow in
[LIMIT VALUES] menu
AUTO RESTART
function not activated Activate
(4)
Unit not automatically starting
after power loss
Power loss lasted too long
(4)
CONTINUOUS OPERATION operating mode
selected
(4)
Select AUTOMATIC OPERATION
operating mode
Unit runs continuously in off-
load without independently
switching to readiness (standby)
Very brief pressure requirements during the
run-on time
No compressed air
requirements within the
switching points set
(4)
Pressure changeover by timer or
external contact active
(5)
FAULT VSD man. Stop The red Stop button on the frequency
converter (VSD) was pressed while the
compressor was running. Always switch the compressor off via
the GD Pilot.
FAULT VSD FAULT xx The frequency converter (VSD) detected a
fault with error number xx that was not
subsequently listed. Notify Gardner Denver Service
Engineer.
FAULT VSD FAULT 4
The frequency converter (VSD) detected
undervoltage. Check the power supply.
Check back-up fuses, replace if
necessary
Check main contactor
Check that all connecting terminals and
plugs are tight, retighten if necessary
FAULT VSD FAULT 7 The frequency converter (VSD) detected a
motor overload Check pressure differential of fine
separator
Check oil level
Check water content of the oil
FAULT VSD FAULT 8
Frequency converter (VSD) overtemperature Check inlet and outlet filters of switch
cabinet, and replace if necessary
Check that electric motor-driven switch
cabinet and frequency converter fans
are working correctly
Check frequency converter for
blockages in the cooling air supply and
dirty heat sinks
FAULT VSD FAULT 13
FAULT VSD FAULT 38
FAULT VSD FAULT 39
FAULT VSD FAULT 40 The frequency converter (VSD) detected an
earth fault at the output
Check motor winding
Carry out insulation test