ABB SACE Tmax XT2 - Page 20

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