15. USING A LINEAR SERVO MOTOR
15 - 20
(b) When the linear encoder home position (reference mark) does not exist in the home position return
direction
POINT
To execute a home position return securely, start a home position return after
moving the linear servo motor to the opposite stroke end with JOG operation
and others.
Change the third digit value of [Pr. PL01] according to the linear encoder
resolution.
The home position return cannot be performed from the position which the home position of the
linear encoder does not exist in the home position return direction. Move the mover to the stroke end
on the opposite side of the home position return direction with the JOG operation from the controller
and others, and then perform a home position return.
Stroke end
Home position start position
Home position
Home position return speed
Creep speed
Home position return direction
ON
OFF
ON
OFF
Proximity dog signal
LZ
(Encoder Z-phase pulse)
Machine position
Linear encoder home position
JOG operation
Home position returnable area
Home position non-returnable area
Servo motor
speed
0 r/min
(c) Caution for passing the home position (reference mark)
An interval for turning on home position (reference mark) signal of the linear encoder has a certain
width. (Specifications differ depending on the linear encoders. For details, refer to "Linear Encoder
Instruction Manual".)
Example: When Z-phase is recognized at startup
Home position signal
B
A
B is recognized as
the on position.
A is recognized as
the on position.
The position which turns on LZ (Encoder Z-phase pulse) differs depending on the directions of home
position passing. When you need to set the home position return completion to the same position
each time such as dog type home position return, always start home position return with the same
direction.
Summary of Contents for MR-J4-100A(-RJ)
Page 19: ...10 MEMO ...
Page 75: ...1 FUNCTIONS AND CONFIGURATION 1 56 MEMO ...
Page 83: ...2 INSTALLATION 2 8 MEMO ...
Page 159: ...3 SIGNALS AND WIRING 3 76 MEMO ...
Page 203: ...4 STARTUP 4 44 MEMO ...
Page 351: ...7 SPECIAL ADJUSTMENT FUNCTIONS 7 40 MEMO ...
Page 365: ...8 TROUBLESHOOTING 8 14 MEMO ...
Page 387: ...9 DIMENSIONS 9 22 MEMO ...
Page 403: ...10 CHARACTERISTICS 10 16 MEMO ...
Page 553: ...12 ABSOLUTE POSITION DETECTION SYSTEM 12 30 MEMO ...
Page 567: ...13 USING STO FUNCTION 13 14 MEMO ...
Page 607: ...14 COMMUNICATION FUNCTION MITSUBISHI ELECTRIC GENERAL PURPOSE AC SERVO PROTOCOL 14 40 MEMO ...
Page 639: ...15 USING A LINEAR SERVO MOTOR 15 32 MEMO ...
Page 767: ...18 MR J4 03A6 RJ SERVO AMPLIFIER 18 84 MEMO ...
Page 856: ...APPENDIX App 41 ...
Page 905: ...MEMO ...