Mitsubishi Electric MELSERVO-J5 MR-J5-G Series, User Manual

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10 USING A LINEAR SERVO MOTOR
10.2 Startup [G] [WG]
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• Linear servo motor movement (when LSP (Forward rotation stroke end) and LSN (Reverse rotation stroke end) are on)
*1 When LSP (Forward rotation stroke end) or LSN (Reverse rotation stroke end) is turned off during the magnetic pole detection, the
operation of the magnetic pole detection is carried on to the opposite direction.
When both LSP and LSN are off, [AL. 027 Initial magnetic pole detection error] occurs.
*2 The following shows the pitch against the magnetic pole.
• Linear servo motor movement (when LSP (Forward rotation stroke end) or LSN (Reverse rotation stroke end) is off)
When LSP or LSN is off at servo-on, the magnetic pole detection is performed as follows.
*1 The following shows the pitch against the magnetic pole.
Linear servo motor series LM-H3
LM-F LM-U2 LM-K2 LM-AJ
Medium thrust
(Continuous thrust: Less
than 400 N) Large thrust
(Continuous thrust: 400 N
or more)
Pitch against magnetic pole [mm] 48 30 60 48 20
Linear servo motor series LM-H3
LM-F LM-U2 LM-K2 LM-AJ
Medium thrust
(Continuous thrust: Less
than 400 N) Large thrust
(Continuous thrust: 400 N
or more)
Pitch against magnetic pole [mm] 48 30 60 48 20
LSN
*1
LSP
*1
Servo-on position
(Magnetic pole detection start position)
Magnetic pole detection completion position
*2
LSN LSP
The linear servo motor moves to the magnetic pole detection start position
upon servo-on, and the magnetic pole detection is executed.
Magnetic pole detection
start position
Magnetic pole detection completion position *1
The linear servo motor reciprocates several times and returns to the magnetic pole detection start position
to complete the magnetic pole detection, and then changes 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.