Mitsubishi Electric MELSERVO-J5 User Manual page 274

Ac servo system

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■Backlash estimation unit selection [G] [A]

Select the unit for the travel distance which is to be automatically set in the backlash estimation function.

4 APPLICABLE FUNCTIONS

4.5 Machine diagnosis

Backlash estimation unit selection

Select the unit for "travel distance at backlash estimation" which is to be

automatically set in the backlash estimation function.

0: Command pulse unit

1: Servo motor encoder pulse unit

A time-out will occur at execution of the backlash estimation function depending on

the setting values for the electronic gear ([Pr. PA06 Electronic gear numerator]/[Pr.

PA07 Electronic gear denominator]). When a time-out occurs, set this servo

parameter to "1".

When this servo parameter is "0", the servo motor rotation amount is as follows.

Servo motor rotation amount = travel distance at backlash estimation × ([Pr. PA06]/

[Pr. PA07]) [rev]

For "travel distance at backlash estimation", refer to the following setting examples.

Page 276 Setting example [G] [A]

Initial value: 0