Liebert 1000kVA Power Supply User Manual


 
Operation
69
Table 10 Alarm messages - summary
Alarm Message MMU SCC Special Functions
Input Fail X
DC Ground Fault X D, L, S
DC Capacitor Fuse Blown X D, F, S
Battery CB Open X, R D, S
Battery Discharging X, R R D, S
Low Battery Warning X, R R D, S
Low Battery Shutdown X D, F, L, S
DC Overvoltage Shutdown X D, F, L, S
Load On Bypass X, R D
Auto Transfer to Bypass E D, F
Auto Retransfer Primed X
Manual Reset/Retransfer X
Static Switch Unable X D, S
Bypass Not Available X D, L, S
Bypass Phase Sequence Wrong X
Input Current Unbalanced E D
Control Power Fail X, R X D, L, S
Output Over/Under Frequency X D, L, S
Output Undervoltage X D, F, L, S
Output Overvoltage X D, F, L, S
Overload X X, R D, S
Overload Transfer X D, F, L, S
Inverter Non-Synchronized X
Module N (1-6) Off Line R X D
Overload Shutdown X D, F, L, S
Reverse Power X D, F, L, S
Rectifier Fuse Blown X D, F, S
Inverter Fault X D, F, S
Hardware Shutdown X D#
Emergency Off X X D*, L, S
Ambient Overtemperature X, R R D, S
Blower Failed X D, S
Equipment Overtemperature X D, S
Overtemperature Timeout X D, F
Load On UPS R
New Alarm R R
Module Summary Alarm R X S
System Summary Alarm R
Battery Exercise X
Battery Overtemp X D, S
D = Auto-Dial initiated
D* = Auto-Dial initiated through Auto Transfer to
Bypass if load is on UPS
D# = Auto-Dial initiated through Module N (1-6)
off-line
E = message displayed on Status Report screens
F = freezes the History Status Report memory buffer
L = latches the displayed alarm message
R = Remote Alarm Contact (optional on MMU)
S = Summary Alarm (System or Module) initiated
X = message displayed on Monitor/Mimic screen
and audible alarm