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ITA2
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User Manual |
60
APPENDIX A - UPS PROMPTS AND ALARMS
A.1
Prompt Window
A prompt window is displayed during the operation of the system to alert you to certain
conditions and/or to require confirmation of a command or other operation.
prompts and meanings.
A.2
UPS Alarm Message List
lists all UPS alarm messages based on the
Current
and
History
menus.
Table 16
UPS prompts and meanings
Prompt
Meaning
System setting is different, please
check
Appears when the parallel parameters are different.
Cannot set this on-line, please shut
down output
If the user wants to change some important settings under condition of output
(output voltage, output frequency, output phase No.), the prompt will appear
Incorrect password, please input
again
Appears when the user incorrectly inputs the Settings password
Operation failed, condition is not
met
Appears when the user wants to execute a certain operation but conditions are not
met
Password changed OK
Appears when the user successfully change the Settings password
Fail to change password, please try
again
Appears when the user tries to change the Settings password but input two different
new passwords
The time cannot be earlier than
system time
Appears when the user sets the time of 'Turn on delay' or 'Turn off delay' is earlier
than the current system time.
Turn on failed, condition is not met
When users press the power button (or execute the command of 'Turn on/Turn off/to
Bypass' under 'Control' Screen), the prompt will appear
Please disconnect power, check
output: 1 phase, 3 phase, then
power UPS On
Appears when the output phase is changed. The system requires the user to power
Off and check the cable connections, then power On the UPS again to guarantee the
safety.
Table 17
UPS alarm messages
Alarm message
Description
Communication fail
Internal communication is abnormal; verify that the communication cables are connected
correctly.
Rectifier fault
A rectifier fault has been detected.
DC/DC fault
The battery charger has a fault.
DC bus abnormal
The DC bus has a fault. The load will transfer to bypass if the bypass is available.
Charger fault
The charger output voltage is abnormal, and the charger is Off.
Aux. power fault
The auxiliary power output voltage exceeds the normal range.
Input back-feed
A rectifier short circuit is detected while in Battery Mode.
Inverter fault
The inverter is Off when the inverter output voltage and current exceed the setting range.
If bypass is available, the UPS will transfer to bypass mode, otherwise the system will
power Off.
Output short
Check that the output cables are not shorted.
Bypass backfeed
A bypass short circuit is detected while in Battery mode.
Output off, voltage is not zero
When there is no output, the system detects that the output has a voltage.
Summary of Contents for Liebert ITA2-08KRT208
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