Condition Description Possible Cause Suggested Action
Undervoltage Trip * Motor is about to be stopped.
The lowest of the measured
voltages is below the trip level.
Voltage dip below the trip level Check parameter settings.
Check main line voltage
Contactor Feedback Trip Motor is stopped. Contactor
feedback is not as expected.
Contactor feedback fault Check for loose connection of
contactor feedback
Check for contactor control
Check motor load and motor
process condition
Serial Communication Trip After the permitted time delay
elapse,
M10x considers loss of
communication and activates
failsafe
communication interruption
between m10x and upper control
system
Check parameter settings.(change
the setting to "255" will disable the
communication supervision);
Check network interface
Start limitation Trip Motor is stopped and a new start is
prevented.
The motor starts too frequent and
the number of starts in a given
interval is reached start limitation
Check parameter settings.
DIx Trip Motor is tripped because the DIx
changes status from healthy to
unhealthy during running ; Motor
is prevented from starting
because the DIx input is
unhealthy.
The process interlock1 switch
remain inactive on the occurrence
of a motor start or the process
interlock2 switch remain active
when motor is in running.
Check DI settings on process
interlock.
Check DIx wirings
Long start Trip Motor is stopped.
After a start signal, when the
measured phase currents remain
above the set value for a locked
rotor delay time during the
startup time
motor locked or stalled in start
state and signals a fault when
current continuously exceeds a
separately set threshold after a
start command for the same
period of time.
Check parameter settings.
Check motor or connected load.
Feeder trip Motor is stopped because of
external trip input of feeder
starter type.
The input is defined as ‘external
trip’, M10x will trip the motor
after a high input is detected.
Check parameter settings.
Check Digital input wiring.
Emergency stop trip Motor is stopped because of
emergency stop input.
The input is defined as ‘emergency
stop’, M102 will stop or trip the
motor
after a high input is detected.
Check parameter settings.
Check Digital input wiring.
External Trip Motor is stopped because of
external trip input.
The input is defined as ‘external
trip’, M10x will trip the motor
after a high input is detected.
heck parameter settings.
Check Digital input
wiring.
Main switch off trip Motor is stopped because of main
switch input.
The input is defined as ‘Main
switch status’, M10x will trip the
motor after a low input is
detected.
Check parameter settings.
Check Digital input wiring.
Current feedback trip Motor is stopped. Current feedback
is not as expected.
Current is not measured during
motor starting or running. Or
current is measured while
starter is detected in test
position.
Check parameter settings if 'soft
test' is enabled. Check motor
connected load and process
condition.
94 M OTO R CO NTRO L A N D PROTE C TI O N U N IT M10X USER G U I D E