Goodwe BT Series User Manual

User Manual V1.3-2021-12-15 04 OTHER
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4.2 Troubleshooting
Relay Check
Failure
Self checking of
relay failure
Neutral & ground
cables are not
connected well on
AC side or just an
occasional failure
Check (use multi-meter) if there is
high voltage (normally should be
lower than 10V) between N & PE
cable on the AC side. If the voltage
is higher than 10V, it means the
Neutral & ground cable are not
connected well on AC side or restart
inverter.
DC Injection
High
/
The inverter
detects a higher
DC component in
AC output
.Try to restart the inverter,check
if it still occurs.If not,it is just an
occasional situation.Otherwise,
contact after-sales immediately.
EEPROM R/W
Failure
/
Caused by a
strong external
magnetic eld etc.
Try to restart the inverter,check
if it still occurs.If not,it is just an
occasional situation.Otherwise,
contact after-sales immediately.
SPI Failure
Internal
communication
failure
Caused by a
strong external
magnetic eld etc.
Try to restart the inverter,check
if it still occurs.If not,it is just an
occasional situation.Otherwise,
contact after-sales immediately.
DC Bus High BUS voltage is
over-high
/ Try to restart the inverter. Check
if the fault still occurs. If not, it
means it is caused by an occasional
situation,or contact after-sales.
Back-Up Over
Load
Back-up side is
over loaded
Total back-up load
power is higher
than the back-up
nominal output
power
Decrease back-up loads to make sure
the total load power is lower than
back-up nominal output power.
Checks Before Turning On AC Power
• Battery connections: Conrm that the connections between the inverter and battery and
that the polarities (+/-) are not reversed. Refer to gure 4.2-1
• On-grid & backup connections: Conrm that the on-grid is connected to the power grid
and that the backup is connected to the loads and that the polarities (e.g. L1/L2/L3/N are in
sequence) are not reversed. Refer to gure 4.2-2.
• Smart Meter & CT connections: Make sure that the Smart Meter and CT are connected
between the house loads and the grid and follow the Smart Meter direction sign on the CT.
Refer to gure 4.2-3.

Goodwe BT Series Specifications

General

Brand	Goodwe
Model	BT Series
Category	Inverter
Language	English