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4
Basic Operations
Section 1-3
1-3
Basic Operations
The PCU's operations are as follows:
1-3-1
Position Control (Direct Operation)
Positioning can be executed either to an absolute position (i.e., to an absolute
position from the origin) or to an incremental position (i.e., to a position rela-
tive to the present position). Interrupt feeding is also possible, whereby an
axis is moved a specified amount when an interrupt input signal is received
and then stopped.
Absolute Movements and
Relative Movements
With absolute and relative movements, position and speed data are set
directly from the ladder program in the CPU Unit. Positioning is executed
according to operating commands sent to the PCU from the CPU Unit. It is
also possible to change the speed or to send commands to move axes to dif-
ferent positions while positioning is being performed.
Origin searches
CJ1W-NC
@
71/CS1W-NC
@
71
Position Control Unit functions
Position control
(direct operation)
Speed control
Torque control
Other operations
Absolute movement
Relative movement
Interrupt feeding
Jogging
Overrides
Present position preset
Stop functions
Backlash compensation
Time
Speed
Start
Start
Position changed, start
New target position
X
Y
Speed changed
Target position before
position changed
Summary of Contents for CJ1W-NC271 - 12-2009
Page 2: ......
Page 4: ...iv ...
Page 6: ...vi ...
Page 22: ...xxii ...
Page 58: ...30 Starting Operation Section 2 2 ...
Page 244: ...216 Axis Operating Input Memory Areas Section 4 8 ...
Page 264: ...236 Transferring Servo Parameters Section 5 3 ...
Page 396: ...368 Linear Interpolation Section 9 7 ...
Page 648: ...620 List of Error Codes Appendix D ...
Page 674: ...646 Additional Functions for the CJ1W NCF71 MA Appendix F ...
Page 684: ...656 Index ...
Page 686: ...658 Revision History ...