70
Overview of Version 1 Upgrades
Section 1-12
Starting Position for the
Electronic Cam Function
The electronic cam function operates with relative movement taking the start-
ing position as the basis. Before executing the electronic cam function, adjust
the input axis and operating axis positions.
When repeating is set for the end condition, the function operates with relative
movement even when the 0
°
position is crossed. Therefore, feed cam opera-
tion is used if the stroke ratio is different for cam angles 0
°
and 360
°
. (See the
diagrams below.)
Cam Processing
The following calculations are made every 2 ms in the servo cycle to deter-
mine the output.
Unlimited Axis Processing for the Input Axis
The input axis travel distance (p/ms) is added to the cam present position. If
the cam present position (p) exceeds the cam rotation distance (p), it is
reduced to within the rotation distance and the number of rotations is found.
Cam Angle
The cam angle (value in degrees
×
10,000) is found.
Cam angle [value in degrees
×
10,000] = (Cam present position [p]
×
3,600,000 / Cam rotation distance [p])
Reciprocating cam operation
When the stroke ratio is the same for 0
°
and 360
°
Feed cam operation
When the stroke ratio is different for 0
°
and 360
°
Operating axis
Cam rotation
distance
Stroke ratio width
*Stroke amount
Starting position
Starting position
Input axis
Starting position
Stroke ratio width
*Stroke amount
Cam rotation
distance
Starting position
Operating axis
Input axis
Содержание CS1W-MC221 -
Страница 1: ...Motion Control Units Cat No W359 E1 04 CS1W MC221 V1 421 V1 OPERATION MANUAL ...
Страница 2: ...CS1W MC221 V1 421 V1 Motion Control Units Operation Manual Revised February 2008 ...
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Страница 27: ...xxviii Conformance to EC Directives 6 ...
Страница 133: ...106 Installation Section 2 2 2 2 4 Dimensions CS1W MC421 CS1W MC221 ...
Страница 173: ...146 Connecting Peripheral Devices Section 2 7 ...
Страница 227: ...200 Command Area Section 3 6 ...
Страница 351: ...324 Interface Specifics Section 5 4 ...
Страница 513: ...486 Absolute Encoder Interface Specifications Section 9 7 ...
Страница 575: ...548 Error Log Section 12 6 ...
Страница 589: ...562 Performance Appendix A ...
Страница 655: ...628 Control Bit Flag Timing Charts Appendix E ...
Страница 683: ...656 Origin Search Patterns Appendix F ...
Страница 685: ...658 Encoder Divider Rate and Rotation Speed for OMRON Servo Drivers Appendix G ...