Mitsubishi Electric MELSERVO-J5 Series User Manual page 212

Execution of total travel distance failure prediction function [A]
Using the servo motor total travel distance, the total travel distance failure prediction function operates as follows.
■Total travel distance failure prediction with servo motor total travel distance
Servo motor total
travel distance
ON
WNG
(Warning)
OFF
When [Pr. PF51.2 Servo motor total travel distance failure prediction warning selection] is set to "1" (enabled), the servo
amplifier starts total travel distance failure prediction using the servo motor total travel distance. [AL. 0F7.3 Failure prediction
warning based on servo motor total travel distance] occurs when the servo motor total travel distance exceeds the threshold.
The procedure to follow when this alarm occurs and the canceling method are as follows:
When [AL. 0F7.3 Failure prediction warning based on servo motor total travel distance] occurs, take one of the following
actions:
• Check that the threshold has been set correctly. If the threshold is set incorrectly, reset it, and restart the equipment.
• Check the equipment. When replacing the equipment, refer to the following.
Page 211 When replacing equipment [A]
[AL. 0F7.3 Failure prediction warning based on servo motor total travel distance] can be deactivated by using one of the
following methods:
• Set a value larger than the servo motor total travel distance in [Pr. PF53 Failure prediction - Servo motor total travel
distance].
• Set [Pr. PF51.2] to "0" (disabled).
• Set "2" (servo motor total travel distance reset) in [Pr. PF51.2] to reset the servo motor total travel distance.
For the resetting method, refer to the following.
Page 210 Reset method of servo motor total travel distance [A]
Reset method of servo motor total travel distance [G] [WG]
If any part of the equipment is replaced, reset the servo motor total travel distance. To reset the servo motor total travel
distance, set [Pr. PF34.2] to "2" (servo motor total travel distance reset), and then cycle the power or perform either the
software reset or the controller reset. When the servo motor total travel distance is reset, [Pr. PF34.2] is changed to "1"
(enabled).
Reset method of servo motor total travel distance [A]
If any part of the equipment is replaced, reset the servo motor total travel distance. To reset the servo motor total travel
distance, set [Pr. PF51.2] to "2" (servo motor total travel distance reset), and then cycle the power or perform either the
software reset or the controller reset. When the servo motor total travel distance is reset, [Pr. PF51.2] is changed to "1"
(enabled).
4 APPLICABLE FUNCTIONS
210
4.5 Machine diagnosis
Threshold = [Pr. PF53]