Mitsubishi Electric MELSEC-Q Series - Home Position Return by the Dogless Home Position Signal Reference Method

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6 POSITIONING CONTROL
6.23.14 Home position return by the dogless home position signal reference method
Ver.!
(1) Dogless home position signal reference method
Home position return is executed using home position signal (zero point). This is
a home position return method that does not use proximity dogs.
Home position, home position return operation, home position return data (home
position return retry function, dwell time at the home position return retry) differ by
the servo amplifier connected as shown below.
Also, set the servo parameter "Function selection C-4 (PC17) (Selection of home
position setting condition)" as follows.
Servo amplifier model
Linear encoder
type
Home position
Home position
return operation
(Note-1)
Home position return data
servo parameter "Function
selection C-4 (PC17)
(Selection of home position
setting condition)"
Home position
return retry
function
Dwell time at the
home position
return retry
MR-J4- B
MR-J4W-
B
MR-J4-
B-RJ
Standard —
Home position signal
(zero point)
Operation B Invalid
1: Not need to pass motor Z
phase after the power
supply is switched on.
Direct drive
motor
— Operation A Valid
0: Need to pass motor Z
phase after the power
supply is switched on.
Linear servo
Absolute
position type
Position where
address of absolute
linear encoder
becomes 0.
Operation C Invalid Both
Incremental
type
Reference mark Operation A Valid
0: Need to pass motor Z
phase after the power
supply is switched on.
Fully closed
loop control
(Note-2)
Absolute
position type
Position where
address of absolute
linear encoder
becomes 0.
Operation C Invalid Both
Incremental
type
Reference mark Operation A Valid
0: Need to pass motor Z
phase after the power
supply is switched on.
MR-J3- B
MR-J3-
B Safety
—
Home position signal
(zero point)
Operation B
Invalid
1: Not need to pass motor Z
phase after the power
supply is switched on.
MR-J3W- B —
MR-J3- B-RJ004
MR-J3-
B Safety
Absolute
position type
Position where
address of absolute
linear encoder
becomes 0.
Operation C Both
Incremental
type
Reference mark Operation A Valid
0: Need to pass motor Z
phase after the power
supply is switched on.
MR-J3- B-RJ006
(Note-2)
MR-J3-
B Safety
Absolute
position type
Position where
address of absolute
linear encoder
becomes 0.
Operation C Invalid Both
Incremental
type
Reference mark
Operation A Valid
0: Need to pass motor Z
phase after the power
supply is switched on.
MR-J3- B-RJ080W —
Home position signal
(zero point)
(Note-1): Refer to (2) to (4) of this section for home position return operation.
(Note-2): During semi closed loop control is equivalent to MR-J3-
B and MR-J4- B (standard).
Ver.!
: Refer to Section 1.3 for the software version that supports this function.