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Chapter 3 Cam Function
3.1 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 (feed current value), which is converted from the input
value (cam axis current value per cycle) by cam data.
Cam data
Two-way operation
(User created cam)
Cam axis current
value per cycle
Feed current value
Cam
conversion
processing
Feed operation
Cam data
(User created cam)
Cam axis current
value per cycle
Feed current value
Cam
conversion
processing
t
t
Cam reference
position
(At 1st cycle)
Cam reference
position
(At 2nd cycle)
Cam reference
position
(At 3rd cycle)
Linear operation
Cam data
(Linear cam: Cam No.0)
Cam axis current
value per cycle
Feed current value
Cam
conversion
processing
t
t
Cam reference
position
(At 1st cycle)
Cam reference
position
(At 2nd cycle)
Cam reference
position
(At 3rd cycle)
Stroke amount 100%
t
t
Summary of Contents for LD77MH
Page 2: ......
Page 48: ...1 16 Chapter1 Outline of Synchronous Control MEMO ...
Page 84: ...2 36 Chapter 2 Input Axis Module MEMO ...
Page 104: ...3 20 Chapter 3 Cam Function MEMO ...
Page 168: ...4 64 Chapter 4 Synchronous Control MEMO ...
Page 234: ...Appendix 18 Appendices MEMO ...
Page 237: ......