Troubleshooting With Fault Display - GE VAT2000 Instruction Manual

8-4 Troubleshooting with fault display

The countermeasures for when the inverter stops with a fault code display are shown in Table 8-4.
Display symbol
EMS.
PM-1~PM-9
OC-1
OC-2
OC-3
OC-4
OC-5
OC-6
OC-7
8. Maintenance and Inspection
Table 8-4 Troubleshooting (1)
Name
Emergency stop 1. The sequence input EMS has been activated.
2. This fault occurs when C00-4=2.
Power module 1. Indicates that the short circuit protection circuit activated.
2. The sub-codes and causes and countermeasures are the
Overcurrent 1. The power module in the main circuit may be broken.
during stop
Overcurrent 1. A sudden change in the load or short circuit may have
during constant
speed operation
Overcurrent 1. Increase the acceleration time setting (A01-0).
during
2. Reduce the torque boost voltage (A02-2).
acceleration
3. An excess GD
Overcurrent 1. Increase the deceleration time setting (A01-1).
during
2. A short circuit or rapid fluctuation of the load may have
deceleration
Overcurrent 1. Reduce the brake voltage setting (A03-0).
during braking
2. A short circuit in the load may have occurred.
Overcurrent 1. A short circuit in the load may have occurred.
during ACR
Overcurrent
during
pre-excitation
Causes and countermeasures
Check the signal wiring.
same as for OC-1~9.
occurred.
Reduce the load fluctuation.
2
, short circuit or rapid fluctuation of the load
may have occurred.
occurred.
8-4