Sungrow EMS200 User Manual page 48

10 Troubleshooting
Fault
PCS comm fault
PCS Address Conflict
PCS not Ready Fault
Micro start timeout
Micro Start Fail
Stop timeout
42
Possible causes
2. PCS AC
breaker is open.
The grid is powered off
and the PCS fails to
communicate with the
local controller.
Multiple PCSs have the
same Modbus address.
Refer to " PCS not Ready Alarm".
1. The PCS is in the
local mode.
2. Communication
between the PCS and
the local controller is
abnormal.
1. The PCS is connected
to the grid.
2. The Soft-Start Voltage
is abnormal.
3. The micro-grid voltage
range is inappropriate.
1. The PCS is in the
local mode.
2. Communication
between the PCS and
the local controller is
abnormal.
Measures
2. Check whether the PCS
circuit
AC circuit
closed.
1. Check the grid state, and
check whether the voltage
frequency is normal.
2. Check
communication
connecting the PCS and
the local controller is firmly
in place.
3. Check whether the IP
address
address of the PCS are
correctly set.
Check the Modbus address
setting.
1. Check whether the PCS
is in the local mode.
2. Check
communication
the PCS and the local
controller is normal.
1. Disconnect the PCS
from the grid.
2. Check
Soft-Start
normal.
3. Check
micro-grid voltage range of
the local
appropriately set.
1. Check whether the PCS
is in the local mode.
2. Check
communication
the PCS and the local
controller is normal.
User Manual
breaker is
whether the
cable
and Modbus
whether the
between
whether the
Voltage is
whether the
controller is
whether the
between