LiteOn EVO 8000 Series, User Manual

Page: 133 / 169

130
Keypad
Display
Fault Name Cause Possible Solution
oscillation » Set a lower value to C3-00
(Torque Compensation Gain) until
the current is decreased and the
motor does not stall.
7. Adjust parameters related to
Speed Search
» Adjust b3-01 (Speed Search
Operation Current)
8. Check the power supply for
phase loss
ot1
Overtorque Detection
1
The current has
exceeded the torque
level set to P6-01 for
longer than the time
set to P6-02
1. Incorrect parameter settings
2. Malfunction on the
machinery side 1. Reset P6-01 and P6-02
2. Check machinery and load
status
ot2
Overtorque Detection
2
The current has
exceeded the torque
level set to P6-04 for
longer than the time
set to P6-05
1. Incorrect parameter settings
2. Malfunction on the
machinery side 1. Reset P6-04 and P6-05
2. Check machinery and load
status
Ut1
Undertorque
Detection 1
The current has
dropped below the
torque detection level
set to P6-01 for longer
than the time set to
P6-02
1. Incorrect parameter settings
2.Malfunction on the
machinery side 1. Reset P6-01 and P6-02
2. Ensure there is no problem on
the machinery side.
Ut2
Undertorque
Detection 2
The current has
dropped below the
torque detection level
1. Incorrect parameter settings
2.Malfunction on the
machinery side 1. Reset P6-04 and P6-05
2. Ensure there is no problem on
the machinery side.