ABB SACE Tmax XT2 User Manual page 20

Malfunctions,
Malfunction
causes, and
solutions [2]
No power reading
Incorrect
measurements
(power, voltage,
etc.)
Password not
required
Password error
The trip test cannot
be performed
The expected trip did
not occur
Reaction times
different from
expectations
Quick intervention
with I3 = Off
High ground
voltage, but trip is
missing
No display of opening
data
1SDH002031A1002 ECN000092998
Possible causes:
Power below the minimum
viewable threshold
Power below the minimum
viewable threshold
Frequency setting incorrect
Harmonic distortion and/or peak
factor out of range
Incorrect RatedVoltage parameter
setting
The password has been disabled
or already entered during the
same programming session
Password incorrect or lost
The Trip coil is not connected
correctly
The CB alert has not been reset
The bus power is greater than
zero
Trip disabled
Wrong threshold/time/curve
selected
Thermal memory enabled
Zone selectivity enabled
Neutral selection incorrect
Linst intervention
Incorrect sensor selection
G function disabled for
voltage
Auxiliary power supply is missing
and/or battery is low
Rev. B
Suggestions
Proper operating condition
Proper operating condition
Set frequency
Proper operating condition
Set the correct parameters
Correct operating condition. See
the chapter on the password
(page 33)
Contact ABB or view the
document 1SDH001501R0001
Check the Trip coil connection
and the messages on the display
Press the reset button
Proper operating condition
Proper operating
enable trip if necessary.
Correct the parameters
Disable if not necessary
Disable if not necessary
Correct the neutral selection
Correct operating condition with
high-voltage short circuit
Set internal or external sensor
Correct operating condition (see
high
cases in the chapter describing
the protection)
Proper operating condition
SACE Tmax XT2 – XT4 | 20
condition;