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4. OPERATION
4.7.10 Dog type first Z-phase reference home position return
After the proximity dog front end is detected, the current position moves in the reverse direction at creep
speed. After this moving away from the proximity dog, the home position is determined to be where the first Z-
phase pulse is issued.
(1) Devices, parameters
Set the input devices and parameters as indicated below.
Item Device/Parameter used Description
Manual home position return mode
selection
Automatic/manual selection (MD0) Turn MD0 ON.
(Note)
Point table No. selection 1 to 8
(DI0 to DI7)
DI0 to DI7 are turned off.
Dog cradle type home position return Parameter No.PC02 8: Select the dog cradle type.
Home position return direction Parameter No.PC03
Refer to (2) in this section and select the home
position return direction.
Dog input polarity Parameter No.PD16
Refer to (2) in this section and select the dog
input polarity.
Home position return speed Parameter No.PC04 Set the speed till the dog is detected.
Creep speed Parameter No.PC05 Set the speed after the dog is detected.
Home position shift distance Parameter No.PC06
Set when the home position is moved from the
Z-phase signal position.
Home position return
acceleration/deceleration time
constants
Point table No.1
Use the acceleration/deceleration time constant
of point table No. 1.
Home position return position data Parameter No.PC07
Set the current position at home position return
completion.
Note. This setting is for when the point table is used. When using the BCD input, turn SP0 to 3 OFF.