Delta Modulon DPH Series User Manual page 240

Alarm
No.
Message
PM #n Repair
65
Switch Open
INV #n Over
OTP Auto
66
Recover Limit
INV #n Over DC
Bus OVP Auto
67
Recover Limit
INV #n Over
OCP Auto
68
Recover Limit
INV #n Volt
69
Abnormal
INV #n PWM
70
Carrier Fault
Modulon DPH Series
Possible Cause
The switch of the power
module #n is in the lower
position ( ).
The inverter of the power
module #n activates its own
protection mechanism when
abnormalities occur and re-
starts automatically for more
than 3 times.
The inverter of the power
module #n activates its own
protection mechanism when
abnormalities occur and re-
starts automatically for more
than 3 times.
The inverter of the power
module #n activates its own
protection mechanism when
abnormalities occur and re-
starts automatically for more
than 3 times.
The inverter voltage of
the power module #n is
abnormal.
1. The system's internal
communication cable is
loose.
2. The inverter's circuit
board of the power
module #n is abnormal.
1. Please turn the switch of the power
module #n to the upper position
( ).
2. If the alarm message still exists
after the solution mentioned above
has been executed, please contact
service personnel.
Please contact service personnel for
assistance.
Please contact service personnel for
assistance.
Please contact service personnel for
assistance.
Please contact service personnel for
assistance.
Please contact service personnel for
assistance.
10-10
Solution