Mitsubishi Electric MELSERVO-J5 User Manual page 302
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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■Threshold setting for belt tension
Set a threshold to generate [AL. 0F7 Machine diagnosis warning]. When the belt tension estimated value inside the servo
amplifier falls below the belt tension threshold, [AL. 0F7 Machine diagnostic warning] occurs.
[Pr. PF72
Belt tension on installation]
[Pr. PF73
Belt tension when extended]
*1
Belt tension threshold
Servo
Symbol
parameter
PF76
BTS
■Belt tension prediction warning selection setting
To enable belt tension prediction warning, set [Pr. PF71.0 Belt tension deterioration prediction function selection].
Furthermore, when a value other than 0 is set in [Pr. PF72 Belt tension on installation], [Pr. PF73 Belt tension when extended],
[Pr. PF74 Static friction during installation], and [Pr. PF75 Static friction when extended], setting a value other than "0"
(disabled) in [Pr. PF71.0 Belt tension deterioration prediction function selection] will estimate the belt tension.
Servo
Symbol
parameter
PF71.0
BFP
■Belt tension deterioration prediction function
During belt tension prediction, [AL. 0F7 Machine diagnostic warning] occurs when the static friction estimated by the friction
estimation function falls below the threshold. After the occurrence of [AL. 0F7 Machine diagnosis warning], if the static friction
becomes equal to or higher than the threshold value, [AL. 0F7 Machine diagnostic warning] will be canceled.
Static friction
ON
WNG
(Warning)
OFF
4 APPLICABLE FUNCTIONS
300
4.5 Machine diagnosis
Static friction
[Pr. PF75
that triggers
Static friction
a warning
when extended]
Name
Belt tension irregular threshold
Name
Belt tension deterioration prediction function selection
Torque
[Pr. PF74
Static friction
during installation]
Description
Set a threshold to generate [AL. 0F7 Machine diagnosis
warning]. Set this servo parameter as a percentage of [Pr. PF72
Belt tension on installation]. When using the belt diagnosis
function, input a value other than 0.
Initial value: 0 [0.1 %]
Description
Belt tension deterioration prediction function selection
0: Disabled (initial value)
1: Execute only belt tension estimation
2: Belt tension deterioration prediction function enabled
After the equipment goes into actual operation, enable the belt
tension deterioration prediction function.
Time
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