East EA990 Super, User Manual

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User Manual 200 kVA-1200 kVA UPS Appendix 1 Alarm List
83
Appendix 1 Alarm List
Alarm code Description Corrective action
111
Mains abnormal during quick
inspection Check whether the mains is normal, the sampling line
is connected and the sampling is normal
118/119/120
Overvoltage at instantaneous input
value (A B C) Check whether the mains is normal and sampling is
normal
121/122/123
Undervoltage at instantaneous input
value (A B C) Check whether the mains is normal, the sampling line
is connected and the sampling is normal
100/101/102
Effective value overvoltage of input
(A B C) Check whether the power supply is normal and
sampling is normal
103/104/105
Effective value undervoltage of input
(A B C) Check whether the mains is normal, the sampling line
is connected and the sampling is normal
106 Input over-frequency Check whether the mains frequency is normal
107 Input under-frequency Check whether the mains frequency is normal
109 Input voltage unbalance
Check whether the mains is normal, the sampling line
is connected and the sampling is normal
124 Input phase loss
Check whether the mains is normal, the sampling line
is connected and the sampling is normal
108 Reverse input phase sequence
Check whether the phase sequence of the mains is
inverted, the sampling line is inverted and the sampling
is normal
124 Abnormal input phase lock
Check whether the phase sequence of the mains is
inverted, and the program is abnormal.
514 Soft starting of PFC failed
1. Check whether CPLD is driven
2. Check whether the conditions are satisfied by the
PFC soft start-up program
112/115/113/116/
114/117 Rectifier over-current
(A1A2B1B2C1C2) 1. Check the connection of Hall line;
2. Check the given limit of electric current loop
418/419/420/421/
422/423
Quick over-current of rectifier
software (A1A2B1B2C1C2)
1. Check the connection of Hall line;
2. Check whether the sampling is normal
3. Check over-current point setting
4. Check the software for erroneous judgment
424/425/426/427/
428/429 Wave-based current limit failure of
rectifier hardware
1. Confirm whether the hardware is normal;
2. Confirm whether CPLD is normal;
3. Confirm whether DSP program is abnormal;
412/413/414/415/
416/417 Alarm of rectifier wave-based
current limit hardware
1. Check whether the waveform is true or false;
2. Confirm whether the hardware is normal;
3. Confirm whether CPLD is normal;
4. Confirm whether DSP program is abnormal;
110 Input current unbalance (alarm)
1. Confirm the loading condition, whether the current
sampling is abnormal, and whether the DSP
program judgment the condition is reasonable;