45
Motor
connections U, V, W
short circuited or
earth fault
?
OC1, OC2, or OC3 trip
during accel., decel., or
steady state
Overcurrent trip OC1, OC2, OC3
YES
NO
Load
excessive
?
YES
NO
Rectify
the fault
Load
fluctuating
?
YES
NO
Reduce load
or increase
inverter size
Torque
boost OK
?
YES
NO
Accel time
too short
?
YES
NO
Can
increase time
?
YES
NO
Raise set point
of Function
06 or 63
Reduce load
or increase
inverter size
Decel time
too short
?
YES
NO
Can
increase time
?
NO
YES
Can
reduce boost
?
YES
NO
Lower
set point of
Function
08 or 65
Malfunction
of inverter
— possibly noise.
Consult IMO
Reduce load
or increase
inverter size
Malfunction
of inverter
— possibly noise.
Consult IMO
Malfunction
of inverter
— possibly noise.
Consult IMO
Braking system
malfunction.
Consult IMO
Reduce load
or increase
inverter size
Raise set point
of Function
07 or 64
8.4
Troubleshooting Flow Diagrams
?
STATUS
QUERY
ACTION
NOTE Although it is impossible to forsee every eventuality, the diagrams on the following
pages will be found to cover the more common problems. If further assistance is required,
please consult IMO Precision Controls Ltd.
WARNING
SWITCH OFF AND
ISOLATE the main
power supply to the
inverter before making
any test connections.
Содержание Jaguar VXS
Страница 1: ......
