Mitsubishi Electric MELSERVO-J3W Series, Инструкция по эксплуатации

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13. USING A LINEAR SERVO MOTOR
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3) Linear servo motor operation (when FLS or RLS is OFF)
When the FLS or RLS is OFF at the servo-on, the magnetic pole detection is carried out as
follows.
Moves to any magnetic pole detection
start position at the same time as the servo-on
Magnetic pole
detection start position
Servo-on position
RLS FLS
(Note)
Magnetic pole detection complete position
Returns to the magnetic pole detection start position after several reciprocating operation,
and changes to the servo lock status after the completion of magnetic pole detection.
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 (2) (a) 2) Note 2 in this section.
(b) For the absolute position linear encoder
POINT
If a gap is generated to the positional relationship between the linear encoder and
the linear servo motor when using the absolute position linear encoder, carry out
the magnetic pole detection again.
Carry out the magnetic pole detection referring the following procedure.
1) Set the parameter No.PS01 (Linear function selection 1) to " 1 (Magnetic pole detection
always valid)".
1
Magnetic pole detection always valid (factory setting)
Parameter No.PS01
2) Execute the magnetic pole detection. (Refer to (2) (a) 1) and 2) in this section)
3) Change the parameter No.PS01 to " 0 (Magnetic pole detection not valid)" after the normal
completion of magnetic pole detection.
0
Magnetic pole detection invalid
Parameter No.PS01
By making the magnetic pole detection function invalid with the parameter No.PS01 after the magnetic
pole detection, the magnetic pole detection for each power-on will be unnecessary.