333
Helical Circular Interpolation
Section 6-5
The helical circular interpolation locus is as shown below for circular interpola-
tion executed for the X and Y axes and the Z axis added as a supplemental
axis.
The Z-axis feed rate is obtained by the following equation:
Feed rate = (Specified interpolation feed rate x Z-axis length)/(Arc length)
The interpolation acceleration time, the interpolation deceleration time, and
triangular control are the same as for linear interpolation.
With helical circular interpolation, the travel time is calculated giving priority to
the feed rate along the arc. For that reason, the feed rate of the supplemental
axis may exceed the maximum interpolation feed rate set in the system
parameters. If this occurs, a SUP AXIS SP OVER (supplemental axis speed
overflow) error will be generated and operation will be stopped. Lower the
feed rate if this error occurs.
Supplemental
axis
Summary of Contents for CS1W-MC221 -
Page 1: ...Motion Control Units Cat No W359 E1 04 CS1W MC221 V1 421 V1 OPERATION MANUAL ...
Page 2: ...CS1W MC221 V1 421 V1 Motion Control Units Operation Manual Revised February 2008 ...
Page 3: ...iv ...
Page 5: ...vi ...
Page 11: ...xii ...
Page 15: ...xvi ...
Page 19: ...xx ...
Page 27: ...xxviii Conformance to EC Directives 6 ...
Page 133: ...106 Installation Section 2 2 2 2 4 Dimensions CS1W MC421 CS1W MC221 ...
Page 173: ...146 Connecting Peripheral Devices Section 2 7 ...
Page 227: ...200 Command Area Section 3 6 ...
Page 351: ...324 Interface Specifics Section 5 4 ...
Page 513: ...486 Absolute Encoder Interface Specifications Section 9 7 ...
Page 575: ...548 Error Log Section 12 6 ...
Page 589: ...562 Performance Appendix A ...
Page 655: ...628 Control Bit Flag Timing Charts Appendix E ...
Page 683: ...656 Origin Search Patterns Appendix F ...
Page 685: ...658 Encoder Divider Rate and Rotation Speed for OMRON Servo Drivers Appendix G ...