Product Manual

Fault code Cause Actions
4 Drive overload Contact Atlas Copco
8 Converter overheating (heat sink) Check the ambient temperature
Check the cubicle cooling
Check airflow around drive
Check cooling fan and cooler contamination
Contact Atlas Copco
256 Hardware fault Contact Atlas Copco
512 Motor overload Contact Atlas Copco
Drive overload Contact Atlas Copco
Over-torque detection Contact Atlas Copco
Under-torque detection Contact Atlas Copco
1024 Over-speed Contact Atlas Copco
Safe torque off Check for loose wiring at inverter - Push
emergency
stop button
Check temperature switch
8192 Output phase loss Contact Atlas Copco
Input phase loss Check supply voltage
Check for loose wiring/wiring errors
Check supply voltage during start-up
Check fuses transformer (200V, 230V, 500V and
575V units only)
16384 Communication error Contact Atlas Copco
TIME-OUT Time-out communication error
between Elektronikon and Inverter
Contact Atlas Copco
Faults and remedies, dryer
For all references hereafter, consult section Air dryer.
Condition Fault Remedy
Pressure dew point too high Air inlet temperature too high Check and correct; if necessary, clean the
aftercooler of the compressor
Ambient temperature too high Check and correct; if necessary, draw
cooling air via a duct from a cooler place or
relocate the compressor
Shortage of refrigerant Have circuit checked for leaks and recharged
Refrigerant compressor does
not run
See below
Evaporator pressure too high See below
Condenser pressure too high See below
Condenser pressure too high
or too low
Fan control switch out of order Replace
Fan blades or fan motor out of
order
Have checked fan/fan motor, if necessary
replace
Ambient temperature too high Check and correct; if necessary, draw
cooling air via a duct from a cooler place or
relocate the compressor
Instruction book
2920 7109 21 103