Instruction manual

79
Details of Troubleshooting
3
SETTING WIZARD
3.4.4 Motor current is large
• Causes under V/F control
• Causes other than V/F control
Cause Measures
Related
Parameters
Torque boost (Pr. 0, etc.) setting is too large. Decrease torque boost (Pr. 0, etc.) setting. Pr. 0, 46, 112
V/F control related parameter setting is not
an appropriate value.
Adjust torque boost (Pr. 0, etc.), base frequency (Pr. 3, etc.), base
frequency voltage (Pr. 19), load pattern selection (Pr. 14).
Pr. 0, 3, 14, 19, 46,
47, 112, 113
Load is heavy. Check the load. -
The acceleration/deceleration time (Pr. 7,
Pr. 8, etc.) setting is too small.
Set a larger value in acceleration/deceleration time (Pr. 7, Pr. 8, etc.).
Pr. 7, 8, 44, 45, 110,
111
Load inertia (GD2) is too large.
(1) Decrease inertia (GD2)
(2) Set a larger value in acceleration/deceleration time (Pr. 7, Pr. 8, etc.).
(2) Pr. 7, 8, 44, 45,
110, 111
Cause Measures
Related
Parameters
Motor specifications setting is not
appropriate.
Check that the motor specifications setting is correct.
Pr. 71, 80, 81, 83,
84, 450, 453, 454,
456, 457
Offline auto tuning is not performed. Perform Offline auto tuning. Pr. 96, 463
Load is heavy. Check the load. -
The acceleration/deceleration time (Pr. 7,
Pr. 8, etc.) setting is too small.
Set a larger value in acceleration/deceleration time (Pr. 7, Pr. 8, etc.).
Pr. 7, 8, 44, 45, 110,
111
Load inertia (GD2) is too large.
(1) Decrease inertia (GD2)
(2) Set a larger value in acceleration/deceleration time (Pr. 7, Pr. 8, etc.).
(2) Pr. 7, 8, 44, 45,
110, 111