Fault code Cause Actions
1 Overcurrent Contact Atlas Copco
Ground fault Contact Atlas Copco
2 Too high voltage. The voltage on the
converter is above the specifications.
Check the supply voltage
Contact Atlas Copco.
3 Too low voltage. The voltage on the
converter is below the specifications.
Power quality faults
Check the supply voltage
Contact Atlas Copco
Check for loose wiring/wiring errors
Check supply voltage during start up
Check fuses transformer (200V, 230V,
500V and 575V units only)
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
Instruction book
116 2920 7109 23
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