Mitsubishi Electric MR-J5 Series, Руководство пользователя

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9 USING A LINEAR SERVO MOTOR
9.4 Basic function
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9
9.4
Basic function
Homing [G] [WG]
Precautions
• The incremental linear encoder and the absolute position linear encoder have different reference home positions at
homing.
• For the incremental linear encoder, a home position (reference mark) of the linear encoder is necessary in the homing
direction.
• To execute a homing securely in the following example, start the homing after moving the linear servo motor to the LSN with
the JOG operation and others.
Homing setting method
■
Incremental linear encoder
• Interval setting of homing
When an incremental linear encoder is used, the home position is the position per 1048576 pulses (changeable with [Pr.
PL01.2 Homing stop interval setting]) with reference to the linear encoder home position (reference mark) that passed through
first after a homing start. Change the setting value of [Pr. PL01] according to the linear encoder resolution.
Servo parameter Description
PL01.2 Homing stop interval setting
0: 2
13
(= 8192) pulse
1: 2
17
(= 131072) pulse
2: 2
18
(= 262144) pulse
3: 2
20
(= 1048567) pulse
4: 2
22
(= 4194304) pulse
5: 2
24
(= 16777216) pulse
6: 2
26
(= 67108864) pulse
7: 2
30
(= 1073741824) pulse
Initial value: 3 (220 (= 1048567) pulses)
LSN LSP
Returnable area: Homing is possible when homing
is started from this area.
Non-returnable area: Homing is not possible when homing
is started from this area.
Dog
Homing direction
Home position of linear encoder (reference mark)