Omron 3G3JX

4-76
4-2 Function Mode
4
Functions
<Group H: Motor Control Parameters>
Motor Capacity and Pole Number
Set the capacity and number of poles of the motor connected to the Inverter.
•With incorrect parameters set, appropriate operation cannot be ensured.
* To switch to the 2nd control, allocate 08 (SET) to the multi-function input terminal and then turn it on.
Stabilization Parameter
This function adjusts to reduce motor hunting.
* To switch to the 2nd control, allocate 08 (SET) to the multi-function input terminal and then turn it on.
•In case of motor hunting, check whether the motor capacity selection (H003/H203) and motor pole
number selection (H004/H204) match your motor. If they do not, match them.
•For adjustment, raise the stabilization parameter (H006) by degrees. If this increases motor
hunting, lower it by degrees.
•When using the automatic torque boost (A041/A241 = 01), if motor hunting occurs in a low speed
range, lower the manual torque boost voltage (A042/A242) and manual torque boost frequency
(A043/A243).
•Other than this function, the following methods are suggested to reduce hunting:
Lower the carrier frequency (b083)
Lower the output voltage gain (A045)
Parameter No. Function name Data Default setting Unit
H003 Motor capacity selection
200-V class
0.2/0.4/0.75/1.5/2.2/3.7/
5.5/7.5
400-V class
0.4/0.75/1.5/2.2/3.7/5.5/7.5
Inverter capacity kW
*
H203 2nd motor capacity selection
H004 Motor pole number selection
2/4/6/8 4 Pole
*
H204 2nd motor pole number selection
Related functions A041 to A045, A241 to A244
Parameter No. Function name Data Default setting Unit
H006 Stabilization parameter
0. to 255.
100 ⎯
*
H206 2nd stabilization parameter 100 ⎯
Related functions A045, b083
Parameter No. Function name Data Description
A045 Output voltage gain 20. to 100.
Unit: %
(Lower this in motor hunting.)
b083 Carrier frequency 2.0 to 12.0
Unit: kHz
(Lower this in motor hunting.)
H006/H206 Stabilization parameter 0. to 255. Adjust this in motor hunting.