Vertiv Liebert EXS - Page 77

Alarm/Warning Description Action
PowerCAN Comms.
Abnormal
Internal communication among the inverter, rectifier and bypass gets
a failure
Contact Vertiv Technical Support.
Pwr. Conditioner
Mode Active
Power conditioner mode activated. None required
Pwr. Conditioner
Mode Enabled
Power conditioner mode enabled. None required
Rectifier DSP SW
Error
Rectifier DSP program incorrect, may burn the inverter or bypass DSP. Contact Vertiv Technical Support.
Rectifier fault
A fault in the UPS rectifier has occurred and the load will transfer to
bypass power if available.
Contact Vertiv Technical Support.
Rectifier in Setting The rectifier starts up and is in synchronization. None required
Rectifier soft start
fail
Low DC bus voltage. Contact Vertiv Technical Support.
Regen. Mode Active Self-aging mode activated. None required
Regen. Mode
Enabled
Self-aging mode enabled. None required
RIB Open The input switch is opened. None required
Silence Active
Select the command of ‘Mute/Unmute audible alarm’ via the Control
page
None required
Silence Inactive
Under conditioner of buzzer silence, select the command of
‘Mute/Unmute audible alarm’ via the Control page.
None required
System Interrupt
Transfer
Execute the interval transfer under conditions of bypass unable to
trace and inverter phase not locked.
None required
Testing Mode
Active
Testing mode activated. None required
Testing Mode
Enabled
Testing mode enabled. None required
Turn On Fail The inverter failed to turn on when the Inverter Manual On is pressed.
Check event log for reason contact Vertiv Technical
Support.
Table 9.2 UPS Alarm and Warning Messages (continued)
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Vertiv™ Liebert® EXS Installer/User Guide