Delta Modulon DPH Series User Manual page 238

Alarm
No.
Message
INV #n PLL
44
Bus Abnormal
CSU Aux
45
Pwr #n Fail
CSU Aux
Pwr #n On
46
Repair
Parallel
Communication
47
Card #n
Removed
PM #n
Abnormal
48
Absent
System
Control Card
49
Abnormal
PFC #n Soft
50
Start Fail
INV #n Soft
51
Start Fail
PFC #n Over
52
Heat Warning
PFC #n Over
53
Heat Shutdown
Modulon DPH Series
Possible Cause
The main AC source's
voltage is changed or the
power module #n's circuit
board is abnormal.
The auxiliary power card #n
is abnormal.
The auxiliary power card #n
is not inserted.
The parallel communication
card #n is abnormal.
The power module #n is
abnormally removed or the
power outage occurs.
The system control card is
abnormal.
The PFC of the power
module #n is abnormal.
The inverter of the power
module #n is abnormal.
The fans of the power
module #n are abnormal.
The fans of the power
module #n are abnormal.
voltage is abnormal or not.
If yes, please wait for the main AC
source to be restored to normal.
If no, 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.
Please contact service personnel for
assistance.
Please contact service personnel for
assistance.
Please contact service personnel for
assistance.
1. Check if any foreign matter blocks
the fans or not. If yes, remove the
foreign matter.
2. Contact service personnel for
assistance.
1. Check if any foreign matter blocks
the fans or not. If yes, remove the
foreign matter.
2. Contact service personnel for
assistance.
10-8
Solution