22
Zenith ZTS(D) 30-1200A ATS, QUICK START USER MANUAL
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Troubleshooting
Warning
Any troubleshooting should be conducted by trained and authorized personnel only. Appropriate personal
protectiveequipment (PPE) shall be used when troubleshooting the ATS panel.
Hazardous voltage may be present. Disconnect all power sources before performing work inside the ATS panel.
Failure to do so may result in serious injury or death.
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Alarms LCD
Touch
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-
out voltage, lower threshold“
Check the correlation between power
source and device configuration
threshold level set in parameter “Drop-
out voltage, upper threshold“
Check the correlation between power
source and device configuration
missing
Check the power source and
connections
Check the power source
from the value of parameter “Phase
sequence“
Connect the phases according to the
configuration
set in parameters “Drop-out frequency,
upper threshold“ and “Drop-out
frequency, lower threshold“
Check the correlation between power
source and device configuration
threshold level set in parameter “Drop-
out voltage, lower threshold“
Check the correlation between power
source and device configuration
threshold level set in parameter “Drop-
out voltage, upper threshold“
Check the correlation between power
source and device configuration
missing
Check the power source and
connections
Table 5 Alarms-list in level 3 and 4, LCD and touch control interfaces
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