
B-63943EN-1/02 17.PMC CONTROL FUNCTION
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(6) Reference position return ( 05h )
This command performs the same operation as manual reference
position return of the CNC after rapid traverse in the reference
position return direction set by bit 5 (ZMIx) of parameter No. 1006.
Reference position setting without DOG
If bit 1 (DLZx) of parameter No. 1005 for the function for setting the
reference position without dogs is set for each axis, and reference
position return operation is not performed even once after the power is
turned on, a reference position return operation (positioning at a grid
closest to the current position) can be performed without using the
reference position return deceleration signal when a movement
(positioning at a location near the reference position) is made in the
direction set for each axis with the continuous feed command (EC0g
to EC6g: 06h) and the reference position return command (EC0g to
EC6g: 05h) is specified.
At the time of positioning at a location near the reference position, the
machine needs to be moved in the reference position return direction
at such a feedrate that the servo position deviation exceeds the value
set in parameter No. 1836.
The direction from a neighborhood point to a grid is set by bit 5
(ZMIx) of parameter No. 1006.
If the reference position return command (EC0g to EC6g: 05h) is
issued after reference position establishment, a high-speed reference
position return operation is performed, regardless of the reference
position return direction set by bit 5 (ZMIx) of parameter No. 1006.
Specify this command after canceling cutter compensation and tool
length compensation.
Axis control block data
Signal
abbreviation
Signal address
(group 1)
Data
EC0g to EC6g G143.0 to .6 Reference position return command
(05h)
Related parameters
Parameter DLZx (No.1005#1)
Parameter ZMIx (No.1006#5)
Parameter (No.1836)