7 Troubleshooting
Power Conversion System BCS-B-H Series (1000K-1500K)
User Manual
72
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Phenomenon
Possible reason
Solution
alarm
is too high.
3.
Air inlet or outlet holes are
blocked.
ventilation holes unblocked.
2.
Replace the inner cooling fan.
3.
Lower the temperature of air inlet holes.
Power
module
over-temperature
The
temperature
of
power
module is too high.
After the PCS discharge completely,
maintain the inner power module.
SPD abnormal
SPD is damaged or fault.
After the PCS discharge completely, check
if the SPD fault, if yes, please replace it in
time.
CAN
communication
abnormal
The communication wire of
screen abnormal.
Check the communication wire of screen.
RS485
communication
abnormal
The communication wire of
screen abnormal.
Check the communication wire of screen.
Grid
phase
sequence
abnormal
The phase sequence of AC
output
wires
is
wrongly
connected.
Check the phase of AC side and make sure
that the phase sequence is corresponding to
each wire.
Grid
over-frequency
The grid frequency larger than
max. allowable grid frequency.
Check the grid, if the grid recover normal,
the PCS will recover normal operation.
Grid
under-frequency
The grid frequency less than
min. allowable grid frequency.
Check the grid, if the grid recover normal,
the PCS will recover normal operation.
Grid over-voltage The amplitude of grid voltage
larger than max. allowable grid
amplitude.
Check the grid, if the grid recover normal,
the PCS will recover normal operation.
Grid
under-voltage
The amplitude of grid voltage
less than min. allowable grid
amplitude.
Check the grid, if the grid recover normal,
the PCS will recover normal operation.
Insulation
resistance
abnormal
The wires of the PCS damaged.
1.
After the PCS discharge completely,
check the wires inside the PCS, ensure
the wires are all in good condition.
Summary of Contents for BCS-B-H Series
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