Atlas Copco GHS 900 VSD+ - Page 96

Instruction book
96 6996 0227 40
Fault code
Fault
Remedy
2
(or 60000)
DC Bus Under voltage (Uv1)
Check supply voltage
Check input wiring
Check EMC filter
3
(or 60000)
Control Power Supply Voltage Fault (Uv2)
Check supply voltage
Check input wiring
Check EMC filter
4
(or 60000)
Under voltage 3 (Uv3)
Check supply voltage
Check input wiring
Check EMC filter
5
Output Short-Circuit or IGBT Fault (SC)
Check wiring to motor
Check for short-circuits
Check inlet valve
Check back pressure oil separator vessel
Check oil injection
6
Ground Fault (GF)
Check wiring to motor
Check for short-circuits
Check inlet valve
Check back pressure oil separator vessel
Check oil injection
7
Overcurrent (oC)
Check wiring to motor
Check for short-circuits
Check inlet valve
Check back pressure oil separator vessel
Check oil injection
8
Drive Overheat Warning (ov)
Check ambient temperatures
Check cooling unit/inverter
Check heatsink inverter
9
Heat sink Overheat (oH)
Check ambient temperatures
Check cooling unit/inverter
Check heatsink inverter
10
Overheat 1 (oH1)
Check ambient temperatures
Check cooling unit/inverter
Check heatsink inverter
11
Motor Overload (oL1)
Check inlet valve
Check back pressure oil separator vessel
Check drive train
Check oil injection
12
Drive Overload (oL2)
Check inlet valve
Check back pressure oil separator vessel
Check drive train
Check oil injection
13
Over torque Detection 1 (oL3)
Check inlet valve
Check back pressure oil separator vessel
Check drive train
Check oil injection