Mitsubishi Electric MELSERVO-J5 User Manual page 265
Ac servo system
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Also See for MELSERVO-J5:
- User manual (478 pages) ,
- Sample screen manual (128 pages) ,
- Introduction manual (112 pages)
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Total travel distance reading method [A]
The servo motor total travel distance can be read with the engineering tool (MR Configurator2) via USB connection. The value
set in [Pr. PF58 Servo motor total travel distance offset] is added to the read servo motor total travel distance.
■When reading the total travel distance with an engineering tool (MR Configurator2)
Select the servo motor total travel distance on the machine diagnosis screen and click "Read". The servo motor total travel
distance at the time of clicking "Read" is displayed, and can be checked and compared with the threshold of the servo motor
total travel distance. In addition, the read servo motor total travel distance can be saved on the machine diagnosis screen.
The displayed range is from 0 to 42949672950. If it exceeds this range, it is clamped at the maximum value.
Setting method of total travel distance failure prediction function [G] [B]
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. PF34.2 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. PF41], servo motor total travel distance failure prediction does not start. To carry over the servo
motor total travel distance when replacing equipment, set [Pr. PF47 Servo motor total travel distance offset]. For the setting
method of [Pr. PF47], refer to the following:
Page 267 When replacing equipment [G] [B]
1.
Startup the system.
2.
Set [Pr. PF34.2 Servo motor total travel distance failure prediction warning selection] to "1" (enabled).
3.
Based on the rated life, set [Pr. PF41 Failure prediction - Servo motor total travel distance].
4.
When replacing the equipment, set [Pr. PF47 Servo motor total travel distance offset].
Page 267 When replacing equipment [G] [B]
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. PF41 Failure prediction - Servo motor total travel distance].
Servo
Symbol
Name
parameter
PF34.2
*MFP
Servo motor total travel
distance failure prediction
warning selection
PF41
FPMT
Failure prediction - Servo motor
total travel distance
PF47
TMO
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 267 When replacing equipment [G] [B]
Initial value: 0 [10 rev], [m]
5
rev, set [Pr. PF41] to "80000"
4 APPLICABLE FUNCTIONS
4.5 Machine diagnosis
4
263
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