Liebert ITA UPS 16kVA User Manual page 39

Alarm message
Rectifier and inverter were shut down because DC bus voltage is too high. Check whether there is a
DC bus over voltage fault in rectifier side. If not, check whether there is an overload. After recovering the fault, restart the
inverter
Bypass over current Bypass current is over limit above 135% rating. The UPS just alarms and does nothing
Setting save error History records not saved. (Reserved)
Fault of entering
AC mains input neutral line is not checked out
Protocol version clash Firmware incompatibility between Monitor Board and Digital Signal Processor Board
Manual on Manual Turn On through operator control and display panel
Manual off Manual Turn Off through operator control and display panel
EPO Press the EPO switch directly or receive the external EPO command
Transfer confirm Prompt to press the Enter key to acknowledge that an interrupted load transfer to bypass will happen
Transfer cancel Prompt to press the ESC key to avoid that an interrupted load transfer to bypass will happen
Fault clear Press FAULT CLEAR
Alarm silence Press ALARM CLEAR
Inverter failed to turn on when INVERTER ON direct access key was pressed. This may be as a result
Turn on fail
of Invalid Operation (Maintenance bypass on) or DC bus or rectifier not ready
Alarm silence cancle Press FAULT CLEAR or ALARM CLEAR
Bypass mode The UPS is in Bypass mode
Normal mode The UPS is in Normal mode
Battery mode The UPS is in Battery mode
Check UPS output The UPS is off and has no output
Battery float charging Battery status (Float charge mode)
Battery boost
Battery status (Boost charge mode)
charging
Battery discharging Battery status (discharge mode)
Battery period testing Automatic periodic battery maintenance discharge test (20% capacity discharge)
Batt. capacity testing User initiated battery capacity discharge test (100% capacity discharge)
Batt. maint. testing User initiated maintenance discharge test (20% capacity discharge)
UPS system testing User initiated system test
Inverter in setting Inverter starting up and synchronizing
Rectifier in setting Rectifier starting up and synchronizing
Battery reverse Reconnect the battery, check the battery connection
No battery Check the battery and the battery wiring
Auto start After UPS was shutdown at EOD, inverter auto starts when utility restore
REC FLASH
Ongoing update of rectifier firmware
UPDATE
INV FLASH UPDATE Ongoing update of inverter firmware
MONITOR FLASH
Ongoing update of monitor firmware
UPDATE
DSP softwar error Inverter software does not match the rectifier software
Note: When the alarm is caused through setting the software value by the Emerson authorized engineer, if you wish to change
the setting values, please get in touch with the Emerson local customer service center
Liebert ITA 16kVA/20kVA User Manual
Chapter 3 Operation And Display Panel
Description
31