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
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