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TruONE® ATS, INSTALLATION AND OPERATING INSTRUCTION
1
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6.1 Alarms
Message Fault Action
Locked, Alarm LED on Lock input activated Unlock
Switch not in AUTO
mode, Alarm LED on
Slide switch is in handle or lock
position
Turn slide switch into the AUTO position
Phases crossed
different
Connect the phases of both sources in
the same order
threshold level set in parameter “Drop-
Check the correlation between power
threshold level set in parameter “Drop-
Check the correlation between power
Check the power source and
connections
Check the power source
from the value of parameter “Phase
sequence“
upper threshold“ and “Drop-out
Check the correlation between power
threshold level set in parameter “Drop-
Check the correlation between power
threshold level set in parameter “Drop-
Check the correlation between power
Check the power source and
connections
Check the power source
from the value of parameter “Phase
sequence“
phase monitor is on
Alarm is active and transfer operations
difference is above the accepted level
Table 6.1 Alarms-list in level 3 and 4, LCD and touch control interfaces
LCD
Touch
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6. Troubleshooting
LCD, TOUCH
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