Chapter 5 Cam Function; Control Details For Cam Function - Mitsubishi Electric MELSEC iQ-R Series Programming Manual

5
CAM FUNCTION
5.1

Control Details for Cam Function

The output axis for synchronous control is operated with a cam.
The following operations can be performed with cam functions.
• Two-way operation: Reciprocating operation with a constant cam strokes range.
• Feed operation: Cam reference position is updated every cycle.
• Linear operation: Linear operation (cam No.0) in the cycle as the stroke ratio is 100%.
The output axis is controlled by a value (current feed value), which is converted from the input value (cam axis current value
per cycle) by cam data.
Two-way operation
Cam data
Cam axis current
value per cycle
Current feed value
(User created cam)
Feed operation
Cam data
Cam axis current
value per cycle
Current feed value
(User created cam)
Linear operation
Cam data
Cam axis current
value per cycle
Current feed value
(Linear cam: Cam No.0)
Cam
conversion
processing
Cam
conversion
processing
Cam reference
position
(At 1st cycle)
Cam
conversion
processing
Cam reference
position
(At 1st cycle)
Cam reference
position
Cam reference
(At 3rd cycle)
position
(At 2nd cycle)
Cam reference
Cam reference position
(At 3rd cycle)
position
(At 2nd cycle)
Stroke amount×100%
5.1 Control Details for Cam Function
t
t
t
t
t
t
5 CAM FUNCTION
83
5