92
1
Z E N ITH Z TG ( D/C T ) T-S E R I E S 16 0 0 -3 0 0 0 A
Message (continued)
Fault
Action
S2 unbalance
Phases of source 2 are not symmetric
Check the power source
S2 phase rotation
Phase rotation of source 2 is different
from the value of parameter “Phase
sequence“
Connect the phases according to the
configuration
S2 invalid frequency
Frequency of source 2 is out of range
set in parameters “Drop-out frequency,
upper threshold“ and “Drop-out
frequency, lower threshold“
Check the correlation between power
source and device configuration
Frequency Difference
Frequency difference of voltage
sources is greater than 3 Hz while in-
phase monitor is on
Alarm is active and transfer operations
disabled as long as the frequency
difference is above the accepted level
High current alarm
Measured current is higher than ten
times the nominal value
Alarm is active and transfer operations
disabled as long as the high current
status remains
Open I failure, Alarm
LED blinking
Switch transfer from position I to O or
II failed
Reset alarm by pressing Auto button or
via menu page Operation / Alarm Reset
Close I failure, Alarm
LED blinking
Switch transfer to position I failed Reset alarm by pressing Auto button or
via menu page Operation / Alarm Reset
Open II failure, Alarm
LED blinking
Switch transfer from position II to O or
I failed
Reset alarm by pressing Auto button or
via menu page Operation / Alarm Reset
Close II failure, Alarm
LED blinking
Switch transfer to position II failed Reset alarm by pressing Auto button or
via menu page Operation / Alarm Reset
Switch position alarm,
Alarm LED on
More than one switch position
indication inputs are activated
Switch service needed
Pole temperature
alarm
Measured pole temperature is too high
Switch service needed
Contact wear alarm
Switch contact wear is near the limit
that requires maintenance
Switch service needed
Ekip Com Hub Alarm
Ekip Com Hub failure
Check configuration
HMI Not Compatible
Firmware versions of HMI and device
are not compatible to be used together
Check current versions and update
compatible versions
Continued on next page
Summary of Contents for Zenith ZTG T Series
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