Delta Modulon DPH Series User Manual page 247

Alarm
No.
Message
PFC #n
MONCAN
114
Comm Loss
INV #n DC Bus
115
Over Warning
INV #n DC Bus
116
Under Warning
INV #n Local
117
Comm Loss
INV #n INTCAN
118
Comm Loss
INV #n
MONCAN
119
Comm Loss
PM #n Parallel
120
I/O Fault
INV #n DC
121
Warning
INV #n DC
122
Shutdown
INV #n Over
OutRelayVDP
123
Auto Recover
Limit
Possible Cause
The PFC's internal
communication of the power
module #n is abnormal.
The inverter DC BUS voltage
of the power module #n is
too high.
The inverter DC BUS voltage
of the power module #n is
too low.
The power module #n's
internal communication cable
is loose or the circuit board is
abnormal.
The power module #n's
internal communication cable
is loose or the circuit board is
abnormal.
The power module #n's
internal communication cable
is loose or the circuit board is
abnormal.
The parallel I/O
communication cable of the
power module #n is loose or
the circuit board is abnormal.
The inverter of the power
module #n is abnormal.
The inverter of the power
module #n is abnormal.
The bypass voltage
waveform is abnormal, or the
inverter voltage of the power
module #n is abnormal,
resulting in a repeated alarm.
10-17
Solution
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.
Please contact service personnel for
assistance.
1. Please check if the bypass voltage
waveform is normal.
2. If the alarm message still exists
after the solution mentioned above
has been executed, please contact
service personnel.
10 Troubleshooting