IMO Precision Controls Jaguar VXS - Page 49

47
Motor overload OL
Inverter overload OLU
OL trip
NO
Are
motor charac-
teristics matched to
electronic O/L
relay
?
YES
Install external
thermal overload
relay and set
Function 15 = 0
or Function 66 = 0
(inactive).
Is load
too high
?
YES
NO
Reduce the load
or increase the
inverter capacity
NO
Are
O/L relay settings
correct
?
YES
Rectify
settings of
Functions 15, 16
or 66, 67.
OLU trip
Malfunction
of inverter
— possibly noise.
Consult IMO
Can
switching freq.
Function 12
be reduced
?
YES
NO
Reduce the value
of Function 12
Can
torque boost
Function 08 (or 65)
be reduced
?
YES
NO
Reduce the value
of Function 08
(or 65)
External trip alarm input OH2
OH2 trip
NO
Is
an alarm circuit
connected to THR
?
YES
Link terminals
THR-P24
Is the
external alarm
circuit OPEN
?
YES
NO
Rectify
the cause of
the alarm
Malfunction
of inverter
— possibly noise.
Consult IMO
Is the
internal power
supply overloaded
(>50mA)
?
YES
NO
Increase impedance of loads
connected to Y1E &/or FMA
or use external power supply
?
STATUS QUERY ACTION