Mitsubishi Electric MR-J4-10A(-RJ) Instruction Manual page 617

15. USING A LINEAR SERVO MOTOR
(4) Linear encoder resolution setting
Set the ratio of the electronic gear to the linear encoder resolution with [Pr. PL02 Linear encoder
resolution - Numerator] and [Pr. PL03 Linear encoder resolution - Denominator].
(a) Parameter setting
Set the values that apply to the following equation.
[Pr. PL02 Linear encoder resolution - Numerator]
[Pr. PL03 Linear encoder resolution - Denominator
(b) Parameter setting example
When the linear encoder resolution is 0.5 μm
[Pr. PL02]
= Linear encoder resolution = 0.5 µm =
[Pr. PL03]
The following shows the simplified chart for the setting values of [Pr. PL02] and [Pr. PL03].
Setting
value
POINT
To enable the parameter values, cycle the power after setting.
If an incorrect value is set for [Pr. PL02] or [Pr. PL03], the linear servo motor
may not operate properly, or [AL. 27] or [AL. 42] may occur at the positioning
operation or the magnetic pole detection.
0.01
[Pr. PL02] 1
[Pr. PL03] 100
= Linear encoder resolution [µm]
1
2
Linear encoder resolution [µm]
0.02 0.05 0.1
1 1 1
50 20 10
15 - 10
0.2 0.5 1.0
1 1 1
5 2 1
2.0
2
1