Liebert 1000kVA Power Supply User Manual


 
Operation
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Table 5 shows the alarm conditions that stop the History Status buffer from gathering data.
The History Status buffer does not resume collecting new frames until the fault is cleared and the
Alarm Reset pad is pressed for more than 5 seconds (or until the screen clears).
Table 5 Alarm conditions that freeze history data gathering
Alarm in SCC Alarm in Module
Auto Transfer to Bypass DC Cap Fuse Blown
Output Overvoltage DC Overvoltage Shutdown
Output undervoltage Inverter Fault
Overload Transfer Low Battery Shutdown
Overload Shutdown
Overtemperature Timeout
Rectifier Fuse Blown
Reverse Power
NOTE
The Emergency Off alarm will also freeze the SCC History Status buffer with the Auto
Transfer to Bypass alarm (if the load is on the UPS system when the alarm condition occurs).