
User Manual 200 kVA-1200 kVA UPS
Appendix 1 Alarm List
84
2.
Whether the control loop is normal;
404
Frequent switching the mains and the
battery (locking)
1.
Confirm the switching times and whether it is
locked in battery mode;
515
Failure of mains contact
Confirm whether the contactor drive signal and feedback
signal are corresponding
500/501/502/503/
504/505
Rectifier IGBT over-temperature
(A1A2B1B2C1C2)
1.
Check whether the sampling is abnormal and the
terminals are loose;
2.
Check the temperature calculation of the program;
520
Emergency shutdown
1.
Check whether the EPO terminals are connected
2.
Check the dry contacts and connection for correct
setting
516
CPLD software version error
Check the CPLD software version number
517
DSP software version error
Check the DSP software version number
518
Inconformity between software
version and hardware version
Check hardware and software version number
508
DSP and CPLD communication
failure
1.
Check whether the communication circuit is
abnormal;
2.
Check whether the communication part of the
program is abnormal;
512
Failure of auxiliary power supply 1
1.
Check the open circuit of the fuse
2.
Check the 15V voltage of the power panel is
abnormal;
3.
Check whether the power supply of the fan on the
power board is abnormal.
4.
Check the software for testing and judgment
problem;
513
Failure of auxiliary power supply 2
1.
Check the open circuit of the fuse
2.
Check the 15V voltage of the power panel is
abnormal;
3.
Check whether the power supply of the fan on the
power board is abnormal.
4.
Check the software for testing and judgment
problem;
521/522/523/524
Failure of driver connecting cable
(ABCN)
1.
Check whether the drive wire is connected;
2.
Check whether the drive wire is damaged
3.
Check software judgment
525
SPI communication failure of
rectifier and inverter
1.
Abnormal communication is normal in the
recording program.
2.
Caused by program burning failed
3.
Caused by hardware circuit
4.
Check the program
506
EEPROM reading and writing
1.
Hardware circuit connect
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