Omron I537-E2-01 User Manual page 222

Display
Motor Overheating Alarm
The Inverter will stop or will continue
to operate according to the setting of
L1-03.
Motor Overheating Fault
The Inverter will stop according to the
setting of L1-04.
Motor Overload
The motor overload protection func-
tion has operated based on the internal
electronic thermal value.
Inverter Overload
The Inverter overload protection func-
tion has operated based on the internal
electronic thermal value.
Overtorque Detected 1
There has been a current greater than
the setting in L6-02 for longer than the
setting in L6-03.
High-slip Braking OL
The output frequency did not change
for longer than the time set in N3-04.
Undertorque Detected 1
There has been a current less than the
setting in L6-02 for longer than the
setting in L6-03.
-4
7
Table 7.1 Fault Displays and Processing (Continued)
Description
The motor has overheated.
The motor has overheated.
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) is
incorrect.
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.
The inertia returned to the load is too
large.
Probable Causes
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 temperature
input on terminals A1 and A2.
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 temperature
input on terminals A1 and A2.
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).
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 the settings in
L6-02 and L6-03 are appropri-
ate.
-
• 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 0 V is 120 s 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.
Corrective Actions