6 Error Message And Trouble Shooting; Error Codes (Field Fault) - Delta M125HV 113 Operation And Installation Manual

Error Message and Trouble Shooting
6 Error Message and Trouble Shooting
While Delta Electronics endeavors to build electronic products to very high
standards of reliability, there will arise instances where the inverter may not
operate properly. When such a condition is encountered, please follow the
instructions in the Troubleshooting Guide (Tables 6-1, 6-2, and 6-3) to attempt
to clear the fault. If it can't solve the problem, please contact customer service
for technical support.

6.1 Error Codes (Field Fault)

Message
AC Freq High
Grid frequency high
(E01)
AC Freq Low
Grid frequency low
(E02)
Island
Islanding is detected
(E03,E04,E05)
AC phase
jump Phase jump of Grid voltage
(E06)
Grid Quality Non-linear load in Grid and near
(E07) to inverter
AC phase
abnormal Wrong connection in AC terminal
(E08)
No Grid 1. AC breaker is OFF
(E09) 2. Disconnect in AC terminal
AC Volt Low
Grid voltage low
(E10)
AC Volt High
Grid voltage high
(E11)
EPO
EPO is operated by user
(E25)
DC Voltage
Input voltage is over 1500Vdc
High
(E30)
Insulation
Insulation problem of PV array
Fault
to ground
(E34)
Remote OFF Remote OFF by extern
(E36) communication
Table 6-1A: Error Codes (Field Fault) & Messages
Description
1. Check the utility frequency
2. Check Grid code & Grid setting
Check Grid breaker
If repeated occurrence, contact customer
service for technical support
If repeated occurrence, contact customer
service for technical support
Check the AC connection in accordance
with the user manual
1. Check switch or AC breaker turn on
2. Check the connection in AC terminal and
make sure it connects to inverter
1. Check the utility voltage within the suitable
range
2. Check Grid code & Grid setting
3. Check the connection in AC terminal
Release the EPO button
Modify the solar array setting, and make the
Voc less than 1500Vdc
1. Check if panel enclosure ground conpletely
2. Check if inverter ground conpletely
3. Check if the DC breakers get wet
Check if remote OFF function is active
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Action