Mitsubishi Electric MELSEC iQ-R RD78G4 - Page 117

4 ADVANCED SYNCHRONOUS CONTROL
4.3 Clutch
115
4
■Slippage method linear acceleration/deceleration smoothing
Set "4: Slippage method (Linear)" or "5: Slippage method (Linear: Input value follow up)" in the clutch smoothing method.
The differences between "4: Slippage method (Linear)" and "5: Slippage method (Linear: Input value follow up)" are shown
below.
• When the input speed to the clutch is fixed
The operations of "4: Slippage method (Linear)" and "5: Slippage method (Linear: Input value follow up)" are same.
• When the input speed to the clutch is changed continuously and slightly
["4: Slippage method (Linear)" is set.]
The clutch smoothing status ON section is changed.
When the clutch smoothing status ON section is extended
Input speed during smoothing Smoothing method
4: Slippage method (Linear) 5: Slippage method (Linear: Input value follow up)
When the speed is fixed No differences
When the speed is changed
continuously and slightly
Smoothing section is changed. Smoothing section is fixed.
When the speed is changed largely The output speed is changed slightly. (The
average speed might be faster than the speed
before starting smoothing.)
The output speed is changed depending on the input speed. (When
the input speed is decelerated and accelerated again, the speed
might be accelerated rapidly.)
t
t
ON
ON
OFF
OFF
Speed after clutch smoothing
Clutch ON/OFF status
Clutch smoothing status
Speed before clutch
processing
Slippage amount at clutch ON Slippage amount at clutch OFF
OFF
t
t
ON
ON
OFF
Output speed
(Speed after clutch processing)
Clutch ON/OFF status
Clutch smoothing status
Input speed
(Speed before clutch
processing)
Slippage amount at clutch ON
Slippage amount at clutch OFF
Clamped at low speed
ON section is extended.