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4 APPLICABLE FUNCTIONS
4.5 Machine diagnosis
Setting method
Use the gear failure diagnosis function with the following procedure:
*1 The threshold for outputting [AL. 0F7 Machine diagnostic warning] is backlash threshold = [Pr. PF67 Backlash nominal value] × [Pr.
PF68 Backlash threshold multiplication].
*2 Once backlash estimation is performed, the servo amplifier will enter the test operation mode and control commands from the controller
will not be available.
NO
YES
Start
Startup the system.
Which function?
Use [Pr. PF68 Backlash threshold multiplication] to set a backlash
threshold that triggers [AL. 0F7 Machine diagnosis warning].
*1
Perform backlash estimation using MR Configurator2.
*2
The result of the backlash estimation is saved in the servo amplifier.
The result of the backlash estimation is saved in the servo amplifier.
The result of the backlash estimation is displayed on MR Configurator2.
The result is stored in [Backlash estimation value (Obj. 2C29h)].
Has the estimated backlash value
exceeded the threshold?
The result of the backlash estimation is displayed on MR Configurator2.
The result is stored in [Backlash estimation value (Obj. 2C29h)].
Perform backlash estimation using MR Configurator2.
*2
Backlash estimation function
End
Set [Pr. PF66.0-3 Gear for backlash estimation - Numerator] and
[Pr. PF66.4-7 Gear for backlash estimation - Denominator] to the gear
ratio of the gears connected to the servo motor.
Set [Pr. PF67 Backlash nominal value] based on the backlash
presented by the manufacturer of the gears being used.
Gear failure prediction function
[AL. 0F7 Machine diagnosis warning] will be triggered.
Reset the controller or cycle the power of the servo amplifier.