User Manual 200 kVA-1200 kVA UPS
Appendix 1 Alarm List
89
5.
Check CPLD version
900
Soft starting failure of inverter
1.
Check whether the inverter voltage and output
voltage sampling are normal
905
Self-inspection failure of inverter
1.
Check whether inverter voltage and DC component
sampling circuit are normal
901
Phase lock failure
1.
Use the oscilloscope to test whether TP20
synchronous square wave signal is normal;
1068
Abnormal synchronous square wave
1.
Use the oscilloscope to test whether TP20
synchronous square wave signal is normal;
205
Bus undervoltage (P N)
1.
Check whether the bus voltage sampling is normal
1039
Emergency shutdown
1.
Check for EPO
1077/1078/1079
Inverter output shorted (A B C AB
BC CA)
1.
Check whether the output is shorted
2.
Check whether inductance current sampling is
normal
1111
Load impact
1.
Check output for impact load
2.
Check whether the output voltage, inductance
current and bus voltage sampling is normal
1071
Inverter overload alarm
1.
Check for overload
2.
Check whether the output voltage, inductance
current and bus voltage sampling is normal
707
105% inverter overload time out
1.
Check for overload
2.
Check whether the output voltage, inductance
current and bus voltage sampling is normal
708
110% inverter overload time out
1.
Check for overload
2.
Check whether the output voltage, inductance
current and bus voltage sampling is normal
709
125% inverter overload time out
1.
Check for overload
2.
Check whether the output voltage, inductance
current and bus voltage sampling is normal
710
150%inverter overload time out
1.
Check for overload
2.
Check whether the output voltage, inductance
current and bus voltage sampling is normal
700/701/702
Output over-voltage (A B C)
1.
Check whether the output voltage sampling is
normal
703/704/705
Output under-voltage
1.
Check whether the output voltage sampling is
normal
600/601/602
Bypass over-voltage (A B C)
1.
Check whether the bypass voltage sampling is
normal
603/604/605
Bypass under-voltage (A B C)
1.
Check whether the bypass voltage sampling is
normal
607
Bypass over-frequency
1.
Check whether the bypass voltage sampling is
normal
Summary of Contents for EA990 Super
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