Mitsubishi Electric Melservo-J3 Series MR-J3-B, Instruction Manual

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5. OPERATION
(2) Home position return parameter
When performing home position return, set each parameter as follows.
(a) Choose the home position return method with parameter No.PC02 (Home position return type).
0
Parameter No.PC02
0 0
Home position return method
0: Dog type
1: Count type
2: Data setting type
3: Stopper type
4: Home position ignorance (Servo-on position as home position)
5: Dog type rear end reference
6: Count type front end reference
7: Dog cradle type
8: Dog type first Z-phase reference
9: Dog type front end reference
A: Dogless Z-phase reference
(b) Choose the starting direction of home position return with parameter No.PC03 (Home position return
direction). Set "0" to start home position return in the direction in which the address is incremented from
the current position, or "1" to start home position return in the direction in which the address is
decremented.
0
Parameter No.PC03
0 0
Home position return direction
0: Address increment direction
1: Address decrement direction
(c) Choose the polarity at which the proximity dog is detected with parameter No.PD16 (Input polarity
setting). Set "0" to detect the dog when the proximity dog device (DOG) is OFF, or "1" to detect the dog
when the device is ON.
0 0 0
Parameter No.PD16
Proximity dog input polarity
0: OFF indicates detection of the dog
1: ON indicates detection of the dog
(3) Instructions
1) Before starting home position return, always make sure that the limit switch operates.
2) Confirm the home position return direction. Incorrect setting will cause the machine to run reversely.
3) Confirm the proximity dog input polarity. Not doing so may cause unexpected operation.