Omron SYSDRIVE RV Series User Manual page 425

Display Meaning
Motor Overload
The motor overload protection func-
Motor
tion has operated based on the internal
Overloaded
electronic thermal value.
Inverter Overload
The Inverter overload protection func-
Inv Over-
tion has operated based on the internal
loaded
electronic thermal value.
Overtorque Detected 1
There has been a current greater than
Overtorque
the setting in L6-02 for longer than the
Det 1
setting in L6-03.
Overtorque Detected 2
There has been a current greater than
Overtorque
the setting in L6-05 for longer than the
Det 2
setting in L6-06.
High-slip Braking OL
The output frequency did not change
HSB-OL
for longer than the time set in N3-04.
Undertorque Detected 1
There has been a current less than the
Undertorq
setting in L6-02 for longer than the
Det 1
setting in L6-03.
Undertorque Detected 2
There has been a current less than the
Undertorq
setting in L6-05 for longer than the
Det 2
setting in L6-06.
Table 7.1 Fault Displays and Processing (Continued)
Probable Causes
The load is too heavy. The accelera-
tion time, deceleration time, and cycle
time are too short.
The V/f characteristics voltage is too
high or too low.
The Motor Rated Current (E2-01) and
Motor 2 Rated Current (E4-01) is
incorrect.
A short-circuit between +V, −V, and
AC terminals occurred.
The load is too heavy. The accelera-
tion time, deceleration time and cycle
time are too short.
The V/f characteristics voltage is too
high or too low.
The Inverter capacity is too low.
A short-circuit between +V, −V, and
AC terminals occurred.
The inertia returned to the load is too
large.
Protective and Diagnostic Functions
Corrective Actions
Check the size of the load and the
length of the acceleration, deceler-
ation, and cycle times.
Check the V/f characteristics.
Check the Motor Rated Current
(E2-01) and Motor 2 Rated Cur-
rent (E4-01).
Make sure that incorrect wiring
has not been done.
Check the size of the load and the
length of the acceleration, deceler-
ation, and cycle times.
Check the V/f characteristics.
Replace the Inverter with one that
has a larger capacity.
Make sure that incorrect wiring
has not been done.
• Make sure that the settings in
L6-02 and L6-03 are appropri-
ate.
-
• Check the mechanical system
and correct the cause of the
overtorque.
• Make sure that the current set-
ting in L6-05 and time setting in
L6-06 are appropriate.
-
• Check the mechanical system
and correct the cause of the
overtorque.
• Make sure the load is an inertial
load.
• Set the system so that the decel-
eration time that does not pro-
duce OV is the value of N3-04
or less.
• Make sure that the settings in
L6-02 and L6-03 are appropri-
ate.
-
• Check the mechanical system
and correct the cause of the
overtorque.
• Make sure that the current set-
ting in L6-05 and time setting in
L6-06 are appropriate.
-
• Check the mechanical system
and correct the cause of the
overtorque.
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