Troubleshooting; Display Message - Epcom EPIG1K User Manual

Relay check

8. Troubleshooting

8.1 Display Message

It is important to understand all operational and error messages that could appear on the
LCD display. The error messages that appear are especially important because service
personnel will need this information reported in order to help them to define the failure
and correct it.
a. Working Status Messages
Operation Condition
Power Off
Initialization and Waiting
<<23
Relay check phase 1 fails, when
the first group relays are closed
19
while the second group relays are
opened
Relay check phase 2 fails, when
20 the first group relays and the
second group relays are closed
Relay check phase 3 fails, when
the first group relays are opened
21
while the second group relays are
closed
Relay check phase 4 fails, when
22 the first group and the second
group relays are opened
Messages
No Display
Waiting
Descriptions
1.Initial condition: Before system startup
voltage (80V)
2.PV Inverter is totally shutdown, Vpv < 70V
1.Initial condition: After PV voltage is higher
than 120V, inverter is waiting for feeding
to grid
2.After Startup: Input voltage range is at 80
~ 120V
1.Relay Check Fail
2.fault value and fault
code
1.Relay Check Fail
2.fault value and fault
code
1.Relay Check Fail
2.fault value and fault
code
1.Relay Check Fail
2.fault value and fault
code