Goodwe SDT G2 Series User Manual page 51

User Manual V1.1-2022-08-15
No. Fault
5 Isolation Fail
6 DC inject High
7 Ground I Fail
8
Cause Solutions
1. Check whether the PV input cables are
2. Check whether the module frames
1. The PV system is
short-circuited to
3.
the ground.
2. The PV system
is in a moist
also alarm as following when Isolation Fail occurs.
1.
the circuit is not
well insulated to
the ground.
2.
1.
DC injection exceeds
the allowed range. 2.
1.
The input insulation
impedance to the
ground decreases
2. Make sure that the components are
operating.
Excess PV modules 1. Check whether the PV string input
are connected in
the series, and the
2.
is higher than the
47
09 Maintenance
broken.
and the metal bracket are securely
grounded.
grounded
email about the fault will be sent to the user
automatically.
minute. If the problem persists, the buzzer will
the latest one.
For example, the fault may occur due to
high humidity on rainy days
properly grounded.
displayed on the LCD.