Mitsubishi Electric MR-J4, Instruction Manual

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15. USING A LINEAR SERVO MOTOR
15 - 10
(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].
POINT
To enable the parameter values, cycle the power after setting.
(a) Parameter setting
Set the values that apply to the following equation.
[Pr. PL02 Linear encoder resolution - Numerator]
[Pr. PL03 Linear encoder resolution - Denominator]
= Linear encoder resolution [µm]
(b) Parameter setting example
When the linear encoder resolution is 0.5 μ m
[Pr. PL02]
[Pr. PL03]
= Linear encoder resolution = 0.5 µm =
2
1
The following shows the simplified chart for the setting values of [Pr. PL02] and [Pr. PL03].
Linear encoder resolution [µm]
0.01 0.02 0.05 0.1 0.2 0.5 1.0 2.0
Setting
value
[Pr. PL02] 1 1 1 1 1 1 1 2
[Pr. PL03] 100 50 20 10 5 2 1 1
POINT
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.