Goodwe EH Plus Series User Manual

47
User Manual V1.4-2022-08-30 09 Maintenance
No. Fault Cause Solutions
9
Grid Frequency
Instability
Utility grid
exception. The
actual grid
frequency change
rate does not meet
the requirement
of the local grid
standard.
1. If the problem occurs occasionally, the
utility grid may be abnormal temporarily.
The inverter will recover automatically after
detecting that the utility grid is normal.
2. If the problem occurs frequently, check
whether the grid frequency is within the
permissible range.
• Contact the local power company if the grid
frequency exceeds the permissible range.
• Contact the dealer or the after-sales
service if the grid frequency is within the
permissible range.
10
LVRT
Undervoltage
Utility grid
exception. The
duration of the
utility grid exception
exceeds the set time
of LVRT.
1. If the problem occurs occasionally, the
utility grid may be abnormal temporarily.
The inverter will recover automatically after
detecting that the utility grid is normal.
2. If the problem occurs frequently, check
whether the grid frequency is within the
permissible range. If not, contact the local
power company. If yes, contact the dealer or
the after-sales service.
11
HVRT
Overvoltage
Utility grid
exception. The
duration of utility
grid exception
exceeds the set time
of HVRT.
12
Abnormal GFCI
30mA
The input insulation
impedance becomes
low when the
inverter is working.
1. If the problem occurs occasionally, it may be
caused by a cable exception. The inverter will
recover automatically after the problem is
solved.
2. Check whether the impedance between the
PV string and PE is too low if the problem
occurs frequently or persists.
13
Abnormal GFCI
60mA
14
Abnormal GFCI
150mA
15 Abnormal GFCI
16
Large DC of AC
current L1
The DC component
of the output
current exceeds
the safety range or
default range.
1. If the problem is caused by an external fault
like a utility grid exception or frequency
exception, the inverter will recover
automatically after solving the problem.
2. If the problem occurs frequently and the PV
station cannot work properly, contact the
dealer or the after-sales service.
17
Large DC of AC
current L2

Goodwe EH Plus Series Specifications

General

Brand	Goodwe
Model	EH Plus Series
Category	Inverter
Language	English