Delta C1000 User Manual

Message Possible cause Action
HW AC OCR
DC Current High
1. Large Grid harmonics
2. Switching device is defective
3. Detection circuit malfunction
1. Check the utility waveform.
Grid connection of inverter need to
be far away from non-linear load if
necessary
2. Check all switching devices in
inverter stage
3. Check the detection circuit inside
the inverter
AC Aux Fail
1. AC AuxPower offer incorrect
output voltage
2. Detection circuit of AC Auxpower
malfunction
1. Check the connection between
Inverter and AC side
2. Check detection circuit
Input current detection circuit
malfunction
Check input current detection circuit
Message Possible cause Action
Door Opened
1.
Door switches are defective
2. Door switches are disconnected
3. Detection circuit malfunction
1. Replace the defective door switch(es)
2. Check the connections of all switches
3. Check the detection circuit inside the
inverter
Table 6-3 : Fault Message (Continued)
Table 6-4 : Other Message
68
Troubleshooting
* F / W will be updated periodically.

Delta C1000 Specifications

General

Brand	Delta
Model	C1000
Category	Inverter
Language	English