Chapter 3 Before positioning
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• Range of S/W upper limit and lower limit is checked when starting positioning and operating.
• If an error is detected by setting software upper/lower limits(software upper limit error: 501,
software lower limit error: 502), pulse output of positioning module is prohibited.
Therefore, to resume operation after an error is detected, it is prerequisite to cancel ‘No output’.
(No output status is displayed at K4205(%KX6725), for X axis and K4305(%KX6885) for Y axis.
• It can be set according to each axis and range is as follows.
- S/W upper limit address value range: -2,147,483,648 2,147,483,647∼ (unit: Pulse)
- S/W lower limit address value range: -2,147,483,648 2,147,483,647∼ (unit: Pulse)
(9) Backlash Compensation Amount
• A tolerance that a machine does not operate due to wear when its rotation direction is changed if it
is moving with motor axis combined with gear and screw is called ‘backlash’.
• Therefore, when changing a rotation direction, it should output by adding backlash compensation
amount to positioning amount.
• The range is between 0 ∼ 65,535(unit: Pulse) per axis.
• It is available for positioning operation, inching operation and jog operation
• Backlash compensation outputs backlash compensation amount first and then, address of
positioning operation, inching operation and jog operation move to the target positions. (At this time,
output as many as backlash amount is not added to the current position address.)
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