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Linear Interpolation
Section 9-7
Example: Linear Interpolation for 2-axis (Axis 1 and Axis 2) Operation
Note
(1) The interpolation speed, axis 1 speed, and axis 2 speed are the maxi-
mum speeds for executing linear interpolation operations without exceed-
ing their respective speed command values.
(2) The
Second-step Linear Acceleration Constant
for W-series Servo Drives
(Pn80B) or
Linear Acceleration Constant
for G-series Servo Drives
(Pn107) and
Second-step Linear Deceleration Constant
for W-series
(Pn80E) or
Linear Deceleration Constant
for G-series Servo Drives
(Pn10A) in the Axis Servo Parameters are used for axis acceleration/de-
celeration operations for the set interpolation acceleration and decelera-
tion times for linear interpolation in Position Control Unit. The setting unit
for the Second-step Linear Acceleration Constant and Second-step Lin-
ear Deceleration Constant is 10,000 command units/s
2
. In operation, the
actual acceleration and deceleration times are thus affected by the preci-
sion of the command unit.
9-7-2
Linear Interpolation Operation Procedure
Just as with direct operation (absolute and relative movement commands), lin-
ear interpolation is executed by setting operation commands in the Axis Oper-
ating Output Memory Area.
Common commands for linear interpolation operations, such as designation
of interpolation axis combinations, interpolation speeds, and interpolation
acceleration and deceleration times, are set in the Axis Operating Output
Memory Area for axis 1 or axis 5, and position and speed command values for
individual linear interpolation axes are set in the Axis Operating Output Mem-
ory Area for those particular axes. Then linear interpolation operations are
started by using the LINEAR INTERPOLATION SETTING and LINEAR
INTERPOLATION START Bits.
The following procedure describes the steps related to starting linear interpo-
lation operations, from servolock onwards.
Axis 2
Axis 1
Start Point
Interpolation end point
Interpolation speed
Axis 1 Speed
Axis 2 speed
Speed
Time
Interpolation acceleration time
Interpolation speed
Axis 1 speed
Axis 2 speed
Axis 2 target position
Interpolation deceleration time
Axis 1 target
position
Summary of Contents for CJ1W-MA - REV 10-2008
Page 3: ...iv ...
Page 5: ...vi ...
Page 21: ...xxii ...
Page 57: ...30 Starting Operation Section 2 2 ...
Page 97: ...70 Wiring Section 3 4 ...
Page 247: ...220 Transferring Servo Parameters Section 5 3 ...
Page 281: ...254 Standard Settings for Servo Drives Using MECHATROLINK Section 6 4 ...
Page 343: ...316 Absolute Encoder Origin Section 8 6 ...
Page 375: ...348 Linear Interpolation Section 9 7 ...
Page 423: ...396 DEVIATION COUNTER RESET Section 10 10 ...
Page 631: ...604 Additional Functions for the CJ1W NCF71 MA Appendix F ...
Page 641: ...614 Index ...
Page 643: ...616 Revision History ...