16. FULLY CLOSED LOOP SYSTEM
16 - 14
16.3.2 Home position return
(1) General instruction
Home position return is all performed according to the load-side encoder feedback data, independently
of the load-side encoder type. It is irrelevant to the Z-phase position of the servo motor encoder. In the
case of a home position return using a dog signal, the home position (reference mark) must be passed
through when an incremental type linear encoder is used, or the Z-phase be passed through when a
rotary encoder is used, during a period from a home position return start until the dog signal turns off.
(2) Load-side encoder types and home position return methods
(a) About proximity dog type home position return using absolute type linear encoder
When an absolute type linear encoder is used, the home position reference position is the position
per servo motor revolution to the linear encoder home position (absolute position data = 0).
In the case of a proximity dog type home position return, the nearest position after proximity dog off
is the home position.
The linear encoder home position may be set in any position.
Linear encoder home position
Home position
Home position return speed
Creep speed
Home position return direction
ON
OFF
Proximity dog
signal
Servo motor
speed
Reference home
position
Machine position
0 r/min
Equivalent to one servo motor revolution
Summary of Contents for MR-J4W2
Page 9: ...A 8 MEMO ...
Page 17: ...8 MEMO ...
Page 31: ...1 FUNCTIONS AND CONFIGURATION 1 14 MEMO ...
Page 95: ...4 STARTUP 4 20 MEMO ...
Page 169: ...6 NORMAL GAIN ADJUSTMENT 6 20 MEMO ...
Page 201: ...7 SPECIAL ADJUSTMENT FUNCTIONS 7 32 MEMO ...
Page 213: ...8 TROUBLESHOOTING 8 12 MEMO ...
Page 219: ...9 OUTLINE DRAWINGS 9 6 MEMO ...
Page 229: ...10 CHARACTERISTICS 10 10 MEMO ...
Page 295: ...13 USING STO FUNCTION 13 14 MEMO ...
Page 327: ...14 USING A LINEAR SERVO MOTOR 14 32 MEMO ...
Page 371: ...16 FULLY CLOSED LOOP SYSTEM 16 24 MEMO ...
Page 521: ...APPENDIX App 38 ...
Page 537: ...MEMO ...
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