Mitsubishi Electric MELSERVO-J5 MR-J5 Series User Manual page 205

Setting method of total travel distance failure prediction function [A]
Using the servo motor total travel distance, the total travel distance failure prediction function can be performed in the
following procedure.
■Failure prediction function setting with servo motor total travel distance
To enable servo motor total travel distance failure prediction warning, set [Pr. PF51.2 Servo motor total travel distance failure
prediction warning selection] to "1" (enabled). Set "Failure prediction - Servo motor total travel distance". It is recommended
that the servo motor total travel distance for failure prediction be set to about the same as the rated life suggested by the
manufacturers of the guides and ball screws being used. For example, for a rated life of 8 × 10
[10 rev]. When "0" is set in [Pr. PF53], servo motor total travel distance failure prediction does not start. To carry over the servo
motor total travel distance when replacing equipment, set [Pr. PF58 Servo motor total travel distance offset]. For the setting of
[Pr. PF58], refer to the following:
Page 206 When replacing equipment [A]
1.
Startup the system.
2.
Set [Pr. PF51.2 Servo motor total travel distance failure prediction warning selection] to "1" (enabled).
3.
Based on the rated life, set [Pr. PF53 Failure prediction - Servo motor total travel distance].
4.
When replacing the equipment, set [Pr. PF58 Servo motor total travel distance offset].
Page 206 When replacing equipment [A]
5.
Drive the servo motor.
6.
Machine total travel distance failure prediction is performed.
[AL. 0F7.3 Failure prediction warning based on servo motor total travel distance] occurs when the machine total travel
distance exceeds [Pr. PF53 Failure prediction - Servo motor total travel distance].
Servo Symbol
parameter
PF51.2 *MFP
PF53 FPMT
PF58 TMO
Name
Servo motor total travel distance
failure prediction warning
selection
Failure prediction - Servo motor
total travel distance
Servo motor total travel distance
offset
Outline
Enable/disable the warning output for servo motor total travel distance.
0: Disabled (initial value)
1: Enabled
2: Servo motor total travel distance reset
Set the threshold of the warning output for servo motor total travel distance.
If the value is "0", the warning output for servo motor total travel distance is not
performed.
Initial value: 0 [10 rev], [m]
Set an offset value for servo motor total travel distance.
Page 206 When replacing equipment [A]
Initial value: 0 [10 rev], [m]
5
rev, set [Pr. PF53] to "80000"
4 APPLICABLE FUNCTIONS
4.5 Machine diagnosis
4
203