ELECTRIC INVERTER,S ZERO SERVO COMPLETION WIDTH.


ZERO SERVO COMPLETION WIDTH.

to set the output width of zero servo completion signal , multi  function input is set be effective when zero servo is completed. zero servo completion signal,s output in current position (zero servo start position+/ - zero servo completion width ) is on . the delay value from zero servo starting position to admissible position is set by 4 times of plus quantity of pg (plus encoder ).
setting range is 0~16383 ,
factory setting is 10
flux vector is A








NOTE:
any of the multi function inputs (h 1- 01--06) is allocated to zero servo command. the set value is 72. when frequency (speed) command is below zero speed level (b 2 - 0 1 ),it will be zero servo status. if the operation command,s input is still (on),off, the output will be cut, and the loss ends.the lock strength of zero servo depends on (b 9 - 0 1 ), zero servo gain .the bigger the set of  b 9 - 0 1  is , the bigger the lock strength is , please adjust the lock strength after adjusting the speed control (a s r ) gain. when zero servo is output to the exterior , any of the constant among multi function output (h 2- 01~03) is set be to zero servo completion width  (value is 33). then zero servo completion  width (b 9 -0 2)is set be too effective . zero servo ending signal is in position of on with in the range of zero servo starting position +/ - zero servo completion width . the delay value from zero servo starting position to admissible position is set by 4 times of pulse quantity of pg (pulse encoder). set the allowable position displacement from the zero servo rate of the pg (pulse generator, encoder ) in the use for instance:for the encoder width 600 p/r four times of pulse quantity is 2400/r. if zero servo function, please avoid long time servo lock with 100% load , otherwise , it will result in inverters fault, please increase the power level of inverter when the servo retentiveness current drops to 10%.  

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