4-2 Function Mode Motor Capacity, Pole Number and Motor Voltage Set the capacity, number of poles and voltage of the motor connected to the Inverter. •With incorrect parameters set, appropriate operation cannot be ensured. 4 Functions * To switch to the 2nd control, allocate 08 (SET) to the multi-function input 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 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 (A044/A244 = 02), 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) 4-63 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 Factory default kW *H203 2nd motor capacity selection Factory default kW H004 Motor pole number selection 2/4/6/8 4 Pole *H204 2nd motor pole number selection 4 Pole H007 Motor voltage selection 00: 200 V 01: 400 V Factory default *H207 2nd motor voltage selection Factory default 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 14.0 Unit: kHz (Lower this in motor hunting.) H006/H206 Stabilization parameter 0. to 255. Adjust this in motor hunting.