Vertiv Liebert EXS - Page 75

Alarm/Warning Description Action
Inverter
Asynchronous
The UPS output voltage and/or frequency and bypass voltage and/or
frequency are not synchronized.
This alarm resets automatically once the condition is no
longer true.
Inverter DSP SW
Error
Inverter DSPsoftware being updated. Contact Vertiv Technical Support.
Inverter fault
A fault in the UPS inverter has occurred and the load will transfer to
bypass power if available.
Contact Vertiv Technical Support.
Inverter FPGA SW
Error
Inverter FPGA being updated. Contact Vertiv Technical Support.
Inverter in Setting The inverter starts up and is in synchronization with the monitoring. None required
Inverter Manual Off
Power button on the operator control and display panel pressed to
manually turn off the inverter.
None required
Inverter Manual On
Power button on the operator control and display panel pressed to
manually turn on the inverter
None required
Inverter relay fail
At least one of the inverter output relays has failed and the load will
transfer to bypass power if available
Contact Vertiv Technical Support.
IP Mode Active Intelligent parallel mode activated, that is sleep mode. None required
IP Mode Demo
Active
Intelligent parallel demo mode activated, that is sleep demo mode. None required
IP Mode Demo
Enabled
Intelligent parallel demo mode enabled, that is sleep demo mode. None required
IP Mode Enabled Intelligent parallel mode enabled, that is sleep mode. None required
LBS Active LBS is enabled. None required
Load Impact
Transfer
A transfer to bypass occurred due to a large step load.
This alarm resets automatically once the condition is no
longer true.
Load Off UPS shutdown, both bypass and inverter have no output. None required
Load on Battery UPS is in battery mode. None required
Load on Bypass UPS is in bypass mode. None required
Load on Inverter UPS is in normal mode. None required
Load Shed Signal 1
Active
During the battery discharge, if the back-up time or remaining
capacity is insufficient, the load shed signal 1 will be activated.
Signal to external device to shed load is sent.
Load Shed Signal 2
Active
During the battery discharge, if the back-up time or remaining
capacity is insufficient, the load shed signal 2 will be activated.
Signal to external device to shed load is sent.
Maint Isolation
Breaker Open
The internal maintenance isolating switch is opened. The UPS is being serviced, the load is not protected.
Manual Battery Test The user initiates a maintenance test (20% capacity discharge). None required
MMS Capacity
Exceeded
The parallel system load exceeds the parallel system rating and
system settings.
Verify the parallel system settings, remove unauthorized
loads, or contact Vertiv Technical Support.
MMS Inv. Manual Off
Power button is pressed on one UPS, and select the parallel system
for unified shutdown.
None required
Table 9.2 UPS Alarm and Warning Messages (continued)
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Vertiv™ Liebert® EXS Installer/User Guide