compensation

this becomes the gain to compensate for slip caused by motor temperature variation when motor,the temperature rise by converting it into slip compensation of inverter. its show inverters value.



SLIP COMPENSATION GAIN OF INVERTER

this function is used to improve speed accuracy when operating with a load .setting range is 0.0~2.5
and factory setting is 1.0 .its setting  very easy from parameters.

NOTE:

this constant dose not normally need to be set . with flux vector control, this becomes the gain to compensate for slip caused by motor temperature variation when motor temperature rises, the motors interior constants change and the slip compensation will be increased . set this constant and adjust the temperature rise by converting it into slip compensation .

this constant can be adjusted when the motors output torque changes at higher temperatures when torque control or limits are used . the larger the setting , the larger the compensation will be set this constant to be 1.0, to compensate the slip set according to rated torque output situation ,for flux vector control , it is used to be motors temperature compensation gain . the motor slip compensation function calculates the motor torque according to the output current and set gain to compensation for output frequency .

this function is used to improve speed accuracy when operating with a load . it is mainly effective with v/f control (without pg). when the control method is switched the factory setting changes as follows v/f control , 0.0, v/f with pg 1.0 open loop vector 0, flux vector 1.0 . when  1.0 is set this function compensation for the rated slip that has been set by the rated torque output .

with flux vector control this becomes the gain to compensate for slip caused by motor temperature variation ,(refer to slip compensation gain , c 3-0 1 under 7.3.6.)the adjustment consequence of slip compensation gain . 1 correctly set the motor rated slip (constant e 2-0 2)and the motor no load current (constant e 2-0 3). the motor rated slip can be calculated by means of the following equation using the numbers that are shown on the motor nameplate .

motor rated slip , motor rated frequency (Hz) rated speed (r/min )x motor (no. of poles )/120 set the values at the rated voltage and rated frequency for the motor no load current . with vector control the motor rated slip is automatically set by auto tuning, 2 set the slip compensation gain (constant c 3- 0 1 to 1.0  if it set to 0.0 slip compensation will be disable). operate with a load measure the speed and adjust the slip compensation gain (in increments of 0.1)when actual speed is low increase the set value when actual speed is high decrease the set value.

 



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