14. USING A LINEAR SERVO MOTOR
14 - 14
3) Linear servo motor movement (when FLS (Upper stroke limit) or RLS (Lower stroke limit) is off)
When FLS or RLS is off at servo-on, the magnetic pole detection is carried out as follows.
RLS
FLS
(Note)
Magnetic pole detection completion position
Magnetic pole detection
start position
Servo-on
position
The linear servo motor moves to a
magnetic pole detection start position
upon servo-on, and the magnetic pole
detection is executed.
The linear servo motor reciprocates several times and returns
to the magnetic pole detection start position to complete the
magnetic pole detection and to go into the servo-lock status.
At this time, there may be a gap, approximately a quarter of
the pitch against magnetic pole, from the start position.
Note. For the pitch against magnetic pole, refer to (3) (a) 2) Note 2 of this section.
(b) For the absolute position linear encoder
POINT
When you use an absolute position linear encoder with the following timings, the
magnetic pole detection will be required.
When the system is set up (at the first startup of equipment)
After a servo amplifier is replaced
After a linear servo motor (primary-side or secondary-side) is replaced
After a linear encoder (scale or head) is replaced or its position is adjusted
When the absolute position linear encoder is used, if a gap is generated to the
positional relation between the linear encoder and the linear servo motor,
perform the magnetic pole detection again.
Perform the magnetic pole detection in the following procedure.
1) Set [Pr. PL01 Linear servo motor/DD motor function selection 1] to "_ _ _ 1" (Magnetic pole
detection at first servo-on).
[Pr. PL01]
Magnetic pole detection at first servo-on (Initial value)
1
2) Execute the magnetic pole detection. (Refer to (3) (a) 1), 2) of this section.)
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 ...
Page 541: ......