Sungrow EMS200 - Fault Information on Grid; Other Faults

User Manual 10 Troubleshooting
43
10.3.2 Fault Information on Grid
Fault
Possible causes
Measures
Grid Start Timeout
1. The PCS is in the
local mode.
1. Check whether the PCS
is in the local mode.
2. Communication
between the PCS and
the local controller is
abnormal.
2. Check whether the
communication between
the PCS and the local
controller is normal.
Grid Start Fail
1. The gird is abnormal.
1. Check whether the grid
frequency or voltage is
abnormal.
2. The grid voltage range
is inappropriate.
2. Check whether the grid
voltage range is
appropriately set.
10.3.3 Other Faults
Fault
Possible causes
Measures
Upper Computer
Comm Err.
Communication between
the local controller and
the user-side EMS times
out.
1. Check whether the
communication cable
between the local controller
and EMS is firmly in place.
2. Check whether the
communication between
the EMS and the local
controller is normal.
Self Check Timeout
PCS is running in the
local mode.
Check whether the PCS is
in the local mode.
Self Check Fault
1. The gird is abnormal.
1. Check the grid status.
2. PCS is faulty or shuts
down due to emergency.
2. Check whether the PCS
is faulty or has shut down
due to emergency.
3. The battery is faulty.
3. Replace the faulty
battery.
4. Container node is
faulty.
4. Check the status of the
container node.
Master Alloc
Abnormal
Refer to the "Master Alloc Abnormal Alarm".