Detailed Parameter 1 - Mitsubishi Electric MELSEC iQ-F Series FX5 User Manual

Detailed parameter 1

[Pr.11] Backlash compensation amount
The error that occurs due to backlash when the machine is moved via gears can be compensated.
(When the backlash compensation amount is set, pulses equivalent to the compensation amount is output each time the
direction changes during the positioning.)
[Pr.44] OPR direction
• The backlash compensation is valid after machine OPR. Thus, if the backlash compensation amount is set or changed,
always perform machine OPR once.
• The setting range of the backlash compensation amount is 0 to 65535. Set the amount with the following condition
satisfied. (Omit values after the decimal point)
Backlash compensation amount
0 ≤
Movement amount per pulse
■Buffer memory address
The following table shows the buffer memory address of this area.
Buffer memory name
[Pr.11] Backlash compensation amount
■Setting range
The setting range depends on the setting of [Pr.1] Unit setting.
Setting of [Pr.1] Unit setting
0: mm
1: inch
2: degree
3: pulse
*1 When this buffer memory area is set with programs, a calculation is performed in the positioning module to convert a setting value to the
value in each unit. For setting this buffer memory area, take the value after the unit conversion into consideration.
■Default value
The default value is 0 for all the axes.
Workpiece
(moved object)
Feed screw
Backlash
(compensation amount)
≤ 255
Axis 1
17
Setting value via GX Works3
0 to 6553.5 (μm)
0 to 0.65535 (inch)
0 to 0.65535 (degree)
0 to 65535 (pulse)
Axis 2
167
Setting value with programs
-1
μm)
0 to 65535 (×10
-5
0 to 65535 (×10 inch)
-5
0 to 65535 (×10 degree)
0 to 65535 (pulse)
17 DATA USED FOR POSITIONING CONTROL
17.3 Basic Setting
17
*1
383