Detailed Parameter 1 - Mitsubishi Electric MELSEC iQ-R-RD75P4 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.)
OPR direction
Pr.44
• 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.
Backlash compensation amount
0 ≤
Movement amount per pulse
(Omit values after the decimal point.)
■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 RD75 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
(moving body)
Worm gear
Backlash
(compensation amount)
≤ 255
Axis 1
17
Setting value with engineering tools
0 to 6553.5 (m)
0 to 0.65535 (inch)
0 to 0.65535 (degree)
0 to 65535 (pulse)
Axis 2 Axis 3
167 317
Setting value with programs
-1
m)
0 to 65535 (10
-5
0 to 65535 (10 inches)
-5
0 to 65535 (10 degrees)
0 to 65535 (pulse)
12 DATA USED FOR POSITIONING CONTROL
12
Axis 4
467
*1
391
12.3 Basic Setting