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Chapter 3 Cam Function
Cam reference position
The cam reference position is calculated as shown below.
(1) Stroke ratio data format
Cam reference
position
=
The preceding cam
reference position
+
Cam stroke
amount
Stroke ratio at
the last point
(2) Coordinate data format
Cam reference
position
=
The preceding cam
reference position
+
Output value corresponding
to "Input value = Cam axis
length per cycle"
-
Output value
corresponding to
"Input value = 0"
Feed current value
Cam axis current
value per cycle
t
t
Cam reference
position
(At 1st cycle)
Cam reference
position
(At 2nd cycle)
Cam reference
position
(At 3rd cycle)
Stroke ratio data format:
Cam stroke amount Stroke ratio at last point
Coordinate data format:
(The output value corresponding to "Input value = Cam axis length per cycle")
- (The output value corresponding to "Input value = 0")
Create cam data for two-way cam operation as shown below.
(1) Stroke ratio data format
Create cam data so that the stroke ratio is 0% at the last point.
(2) Coordinate data format
Create cam data with the same output value for the point where the input value is 0
and the input value is equal to the cam axis length per cycle.
t
t
Cam axis current
value per cycle
Feed current value
Cam reference position
(Does not change because of the
stroke ratio 0% and output value = 0.)
Содержание LD77MH
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Страница 48: ...1 16 Chapter1 Outline of Synchronous Control MEMO ...
Страница 84: ...2 36 Chapter 2 Input Axis Module MEMO ...
Страница 104: ...3 20 Chapter 3 Cam Function MEMO ...
Страница 168: ...4 64 Chapter 4 Synchronous Control MEMO ...
Страница 223: ...Appendix 7 Appendices 3 Create the cam data cam No 1 4 Set the synchronous parameter of the axis 1 ...
Страница 234: ...Appendix 18 Appendices MEMO ...
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