Fault Diagnosis; Fault Information On Power Conversion System (Pcs) - Sungrow EMS200 User Manual

User Manual
Alarm
Node 1/2/3/4/5/6/7/8
Alarm
Air Condition
Temperature
Abnormal
Master
Abnormal Alarm
Note: * applicable only to SC1000 whose AC side is directly connected in
parallel.
10.3

Fault Diagnosis

10.3.1 Fault Information on Power Conversion System (PCS)

Fault
PCS fault
Possible causes
Dry contact of the local
controller collects node
signals.
The actual temperature
in the battery container is
higher
Condition
Value" or Air Condition T
Lowlimit Value ".
When multiple PCSs are
directly connected
Alloc
parallel on the AC side,
there is no master or
more than one master.
Possible causes
1. The grid is powered
off and the PCS is faulty.
Measures
the local controller.
Check whether the device
connected
corresponding dry contact
is normal.
The dry contact can be
configured for alarm or fault
collection.
When it is configured for
alarm, the node reports
alarms.
1. Check whether the air
conditioner in the battery
container is faulty.
2.
than "Air
parameters such as "Air
T Uplimit
Condition T Uplimit Value"
or Air Condition T Lowlimit
Value ". are appropriately
set.
in
Check the setting of master
and slave.
Measures
1. Check the grid state, and
check whether the voltage
frequency is normal.
10 Troubleshooting
to
Check whether
the
the
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