Home Position Return By The Dogless Home Position Signal Reference Method - Mitsubishi Electric MELSEC Q Series Programming Manual

6 POSITIONING CONTROL

6.23.14 Home position return by the dogless home position signal reference method

Servo amplifier model
Standard
Direct drive
motor
MR-J4- B
Linear servo
MR-J4W- B
MR-J4- B-RJ
Fully closed
loop control
(Note-2)
MR-J3- B
MR-J3- B Safety
MR-J3W- B
MR-J3- B-RJ004
MR-J3- B Safety
(Note-2)
MR-J3- B-RJ006
MR-J3- B Safety
MR-J3- B-RJ080W
(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.
Linear encoder
Home position
type
—
Home position signal
(zero point)
—
Position where
Absolute address of absolute
position type linear encoder
becomes 0.
Incremental
Reference mark
type
Position where
Absolute address of absolute
position type linear encoder
becomes 0.
Incremental
Reference mark
type
—
Home position signal
(zero point)
—
Position where
Absolute address of absolute
position type linear encoder
becomes 0.
Incremental
Reference mark
type
Position where
Absolute address of absolute
position type linear encoder
becomes 0.
Incremental
Reference mark
type
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.
Home position return data
Home position
Home position
return operation
return retry
(Note-1)
function
Operation B
Operation A
Operation C
Operation A
Operation C
Operation A
Operation B
Operation C
Operation A
Operation C
Operation A
6 - 235
servo parameter "Function
selection C-4 (PC17)
Dwell time at the
(Selection of home position
home position
setting condition)"
return retry
1: Not need to pass motor Z
Invalid phase after the power
supply is switched on.
0: Need to pass motor Z
Valid phase after the power
supply is switched on.
Invalid Both
0: Need to pass motor Z
Valid phase after the power
supply is switched on.
Invalid Both
0: Need to pass motor Z
Valid phase after the power
supply is switched on.
1: Not need to pass motor Z
phase after the power
supply is switched on.
Invalid
Both
0: Need to pass motor Z
Valid phase after the power
supply is switched on.
Invalid Both
0: Need to pass motor Z
Valid phase after the power
supply is switched on.
Ver.!