Sofar CH1000 - Page 92

Fault Phenom-
enon
Cause Analysis Exclusion Method
Inverter oine
or data error
1. CH1000 is not
networked
2. Communication
cable is not con-
nected or cable is
loose
3. Shielded twisted
pair cable is not
used
4. Wrong SN added
5. RS485 A, B termi-
nal connection is
reversed
1. Network the CH1000 via Ethernet,
Wi-Fi, or 4G
2. Check the communication cable
and connect it well
3. Use shielded twisted pair cable
4. Add the correct SN
5. Switch the wiring of RS485 A and
B
Meter oine 1. CH1000 is not
networked
2. Communication
cable is not con-
nected or cable is
loose
3. Shielded twisted
pair cable is not
used
4. RS485 A and B
terminals are
reversed
1. Network the CH1000 via Ethernet,
WiFi, or 4G
2. Check the communication cable
and connect it well
3. Use shielded twisted pair cable
4. Switch the wiring of RS485 A and
B terminals
Meter data error 1. Wrong SN added
2. CT connection di-
rection is wrong
3. CT ratio configu-
ration error
4. Wrong CT
mounting posi-
tion
1. Add the correct SN
2. Switch the direction of CT connec-
tion
3. According to the actual CT ratio
setting
4. Check that the CT mounting
position is mounted on the grid
connection point
Installation and User Manual 87/92
Fault Resolution