Delta C2000 series User Manual page 412

Chapter 14 Fault Codes and Descriptions C2000 Series
ID* Fault Name
Fault
68
SdRv
SpdFbk Dir Rev
Fault
69
SdOr
SpdFbk over SPD
Fault
70
SdDe
SpdFbk deviate
Fault
73
S1
S1-emergy stop
Fault
79
Uoc
U phase oc
Fault
80
Voc
V phase oc
Fault
81
Woc
W phase oc
Fault
82
OPHL
U phase lacked
Fault
83
OPHL
V phase lacked
Fault Descriptions
Rotaing direction is different from the commanding direction deteced by the
sensorless.
Solution
Verify if the parameter setting of the motor drive is correct
Increase the estimator's bandwidth and verify if parameters relating to the
sensorless are correct.
Overspeed rotation detected by the sensorless
Solution
Verify if the parameter setting of the motor drive is correct
Increase the estimator's bandwidth and verify if parameters relating to the
sensorless are correct.
Verify if the gains of the speed circuit is reasonable.
Big difference between the rotating speed and the command deteced by the
sensorless
Solution
Verify if the parameter setting of the motor drive is correct
Increase the estimator's bandwidth and verify if parameters relating to the
sensorless are correct.
Verify if the gains of the speed circuit is reasonable.
Emergency stop for external safety
Phase U short circuit
Phase V short circuit
W phase short circuit
Output phase loss (Phase U)
Output phase loss (Phase V)
Corrective Actions
14-8