Mitsubishi Electric LD77MH, User Manual

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Chapter 4 Synchronous Control
4.3.3 Smoothing method for clutch
Set the clutch smoothing method in "[Pr.411] Main shaft clutch smoothing method" and
"[Pr.428] Auxiliary shaft clutch smoothing method".
The 2 types of clutch smoothing include the following.
• Time constant method smoothing
• Slippage method smoothing
When not using clutch smoothing, set "0: Direct" in the clutch smoothing method.
Item
Setting item
Setting details/Setting value
Main shaft clutch Auxiliary shaft clutch
Clutch
smoothing
method [Pr.411]
Main shaft clutch
smoothing method
[Pr.428]
Auxiliary shaft clutch
smoothing method
• Set the clutch smoothing method.
Set in decimal.
0: Direct
1: Time constant method (Exponent)
2: Time constant method (Linear)
3: Slippage method (Exponent)
4: Slippage method (Linear)
The operation of each smoothing method is shown below.
Time constant method smoothing
Smoothing is processed with the time constant setting value in the smoothing time
constant at clutch ON/OFF. After clutch ON smoothing is complete, smoothing is
processed with the time constant setting value when the speed of the input values
changes.
The travel value between the clutch turning ON and OFF is not changed with smoothing.
Travel value after clutch smoothing = Travel value before clutch smoothing
Item
Setting item
Setting details Setting value
Main shaft clutch Auxiliary shaft clutch
Clutch
smoothing time
constant
[Pr.412]
Main shaft clutch
smoothing time
constant [Pr.429]
Auxiliary shaft clutch
smoothing time
constant
• For smoothing with a time
constant method, set the
smoothing time constant.
Set in decimal.
0 to 5000 [ms]