46 Chapter 4 Operation And Display Panel
Liebert
®
ITA 16kVA And 20kVA UPS User Manual
Alarm message
Description
Setting save error
Historical records are not saved (Reserved)
Input Disconnect
Fault
AC mains input neutral line is not checked out
Protocol version clash
Firmware incompatibility between monitor board and Digital Signal Processor (DSP) board
Manual on
Manually turn on the inverter through pressing ON on the operation and display panel
Manual off
Manually turn off the inverter through pressing OFF on the operation and display panel
EPO
Press the EPO button directly or receive the external EPO command
Transfer confirm
Prompt to press the Enter button to acknowledge that an interrupted load transfer to bypass will happen
Transfer cancel
Prompt to press the ESC button to avoid that an interrupted load transfer to bypass will happen
Fault clear
Press FAULT CLEAR
Alarm silence
Press ALARM CLEAR
Turn on fail
Inverter failed to turn on manually. The reason may be the invalid operation (maintenance bypass air
breaker closed), 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 stops the output:
1. Whether the EPO terminal is on the dry contact port 4
2. Whether the LCD displays ‘Parallel comm. Fail’
Battery float charging
Battery status (floating charge mode)
Battery boost
charging
Battery status (boost charge mode)
Battery discharging
Battery status (discharge mode)
Battery period testing
Automatically periodic battery maintenance test (20% capacity discharge)
Batt. capacity testing
User initiated battery capacity test (100% capacity discharge)
Batt. maint. testing
User initiated maintenance test (20% capacity discharge)
UPS system testing
User initiated UPS system self-test
Inverter in setting
Inverter is starting up and synchronizing
Rectifier in setting
Rectifier is starting up and synchronizing
Battery reverse
Reconnect the battery, and check the battery wiring
No battery
Check the battery and battery wiring
Auto start
UPS is off when the battery discharges completely, the inverter will automatically start after the mains is
restored
REC FLASH
UPDATE
Ongoing update of rectifier firmware
INV FLASH UPDATE
Ongoing update of inverter firmware
MONITOR FLASH
UPDATE
Ongoing update of monitor firmware
DSP softwar error
Inverter software does not match the rectifier software
Operation invalid and
Bypass unable to
trace
Alarm combination, when the two alarms appear at the same time, the UPS I/O cable connection mode
is not suitable with the setting mode (3-in 3-out or 3-in 1-out)
Note:
If the alarm is caused through setting the software value by Emerson authorized engineer, and when you wish to change the
setting values, please get in touch with the Emerson local customer service center