Mitsubishi Electric MELSERVO-J4 Series Instruction Manual page 563

■Execution of total travel distance failure prediction
When a threshold is inputted to the servo amplifier as indicated in the following section, the servo amplifier starts total travel
distance failure prediction. After the occurrence of [AL. F7.3 Total travel distance failure prediction warning], if "_ 0 _ _
(disabled)" is set in [Pr. PF34 (_ x _ _)] and the power is cycled, [AL. F7.3] will be canceled.
Page 560 Setting of servo motor total travel distance for failure prediction
Servo motor
total travel distance
ON
WNG
(warning)
OFF
■Total travel distance reset
If any part of the equipment is replaced, reset the servo motor total travel distance. To reset the servo motor total travel
distance, cycle the power after setting "_ 2 _ _ (servo motor total travel distance reset)" in [Pr. PF34 (_ x _ _)]. When the servo
motor total travel distance is reset, "_ 1 _ _ (enabled)" is set in [Pr. PF34 (_ x _ _)].
Related object (servo transient transmission function)
Index Sub Object Name
2C29h 0 VAR Fault prediction status
2C2Ah 0 VAR Friction based fault prediction upper
threshold
2C2Bh 0 VAR Friction based fault prediction lower
threshold
2C2Ch 0 VAR Friction based fault prediction prepare
status
2C2Dh 0 VAR Vibration based fault prediction threshold I32
Threshold = [Pr. PF34 (x _ _ _)] × [Pr. PF41]
Data Type Access Description
U32 ro [Bit 0 to 3: Friction failure prediction status]
0: Friction failure prediction disabled
1: During preparation for friction failure prediction
2: During execution of friction failure prediction
3: During friction failure prediction warning
[Bit 4 to 7: Vibration failure prediction status]
0: Vibration failure prediction disabled
1: During preparation for vibration failure prediction
2: During execution of vibration failure prediction
3: During vibration failure prediction warning
[Bit 8 to 11: Total travel distance failure prediction status]
0: Total revolution failure prediction disabled
1: During execution of total revolution failure prediction
2: During total revolution failure prediction warning
[Bit 12 to 15: Motor total travel distance calculation
status]
0: During stop of motor total travel distance calculation
1: During calculation of motor total travel distance
[bit 16 to 31: reserved]
I32 ro Friction failure prediction - Upper limit threshold
The upper limit threshold used for friction failure
prediction is displayed in increments of 0.1% assuming
the rated torque as 100%.
I32 ro Friction failure prediction - Lower limit threshold
The lower limit threshold used for friction failure
prediction is displayed in increments of 0.1% assuming
the rated torque as 100%.
I16 ro Friction failure prediction - Preparation progress
The threshold creation progress used for friction failure
prediction is displayed in percentage unit. The creation
of an upper and a lower limit threshold for friction failure
prediction will be completed at 100%.
ro Vibration failure prediction - Threshold
The threshold used for vibration failure prediction is
displayed in increments of 0.1% assuming the rated
torque as 100%.
17 APPLICATION OF FUNCTIONS
17.5 Machine diagnosis function
17
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