Mitsubishi Electric MELSERVO-JN Series Instruction Manual page 401

13. POSITIONING MODE
(2) Home position return parameter
When performing home position return, set parameter No. PE03 (home position return type) as follows.
Parameter No. PE03
0
Home position return type .......................(a)
0: Dog type
1: Count type
2: Data set 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
Home position return direction ..................................(b)
0: Address increasing direction
1: Address decreasing direction
Proximity dog input polarity ..................................(c)
0: OFF indicates detection of the dog
1: ON indicates detection of the dog
(a) Choose the home position return type.
(b) Choose the starting direction of home position return. 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.
(c) Choose the polarity at which the proximity dog is detected. 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.
(3) Instructions
(a) Before starting home position return, always make sure that the limit switch operates.
(b) Confirm the home position return direction. Incorrect setting will cause the machine to run reversely.
(c) Confirm the proximity dog input polarity. Not doing so may cause unexpected operation.
13.6.2 Selection of home position return mode
Set the input device as shown in the following table to select the home position return mode.
Input device
Automatic/manual selection (MD0)
Point table No./Program No. selection 1 (DI0)
Point table No./Program No. selection 2 (DI1)
Point table No./Program No. selection 3 (DI2)
The explanations in the following sections apply when the home position return mode is selected by MD0, MI0,
DI1, and DI2.
Point table method
OFF
All OFF
(The home position return mode is
selected.)
13 - 50
Device setting
Program method
OFF
Select a program that has the home
position return "ZRT" command.