UPS Status Messages
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APPENDIX A-UPS STATUS MESSAGES
Table 8 shows all event messages as they appear in the current status area of the LCD or the history
log, along with a description and recommended actions, if any. For further information on the current
status area and the history log, see 2.11 - UPS Status Messages.
Table 8 UPS status messages
No. Event Message Description / Suggested Action (if any)
1 Inverter Comm. Fail The RS485 communication between internal monitor and inverter fails.
2 Rectifier Comm. Fail The RS485 communication between internal monitor and rectifier fails
3 Parallel Comm. Fail
The CAN communication between different UPSs within a parallel system fails.
Suggested Action
1. Check if there are some UPS not powered on in the parallel system. If so, power on
these UPSs and check if the alarm disappears.
2. Compare the actual number of UPS in the parallel system with the setting number of
any UPS via the configuration software. If they are different, change the setting number
via the configuration software.
3. If they are coincident,
a. Check the connection status of parallel cables.
b. Replace the parallel board and try again.
4 Battery Overtemp.
The Battery temperature is over limit.
Suggested Action
Check the battery temperature and ventilation
5 Ambient Overtemp.
The Ambient temperature is over limit.
Suggested Action
Check the ventilation of UPS room.
6 Battery Fault
Battery is bad. (Reserved)
Suggested Action
Change the battery
7 Battery Replaced
Battery should be replaced.
Suggested Action
Replace the battery and set the battery model and parameters through software.
8 Battery Low Pre-warning
Before the end of discharging, battery under-voltage pre-warning should occur. After this
pre-warning, battery should have the capacity for 3 minutes discharging with full load. The
time is user configured from 3 to 60 minutes.
Suggested Action
Shut down the load in time
9 Battery End of Discharge
Inverter turned off due to low Battery Voltage.
Suggested Action
Check the utility failure and try to recover it.
10 Mains Volt. Abnormal
Mains Voltage exceeds the upper or lower limit and results in rectifier shutdown.
Suggested Action
Check the input line-to-neutral voltage amplitude of rectifier.
11 Mains Undervoltage
Mains Voltage is undervoltage (120v~176v) with derated load.
Suggested Action
Check the input line-to-line voltage amplitude of rectifier.
12 Mains Freq. Abnormal
Mains frequency is out of limit range and results in rectifier shutdown.
Suggested Action
Check the rectifier’s input voltage frequency
13 Battery Fuse Fail
Battery Fuse is broken.
Suggested Action
Change the battery fuse
14 Rectifier Fault Rectifier Fault
15 Input Inductor Overtemp.
The temperature of rectifier inductor is too high to keep the rectifier running.
Suggested Action
Check the ambient temperature and ventilation
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