Home Position Return By The Data Set Method 3 - Mitsubishi Electric MELSEC iQ-R16MTCPU Programming Manual

Home position return by the data set method 3

Data set method 3
The proximity dog is not used in this method that allows home position return to be performed during servo ON/OFF.
Home position return by the data set method 3
Home position is the real position of servo motor at the home position return operation.
Real position of
machine at the home
position return start
Home position return
by the servo program
start instruction
Home position return execution
Home position return by the data set method 3 is executed using the servo program (Page 378 Servo program for home
position return).
Cautions
• A zero point must be passed ("[St.1066] Zero pass (R: M32406+32n/Q: M2406+20n)" ON) between turning on the power
supply and executing home position return. If home position return is executed without passing a zero point once, minor
error (error code: 197AH) occurs. If minor error (error code: 197AH) occurred, perform the home position return again, after
reset the error and turn the servo motor at least one revolution by the JOG operation. The zero point passing can be
confirmed with the "[St.1066] Zero pass (R: M32406+32n/Q: M2406+20n)". However, when "1: Not need to pass motor Z
phase after the power supply is switched on" is selected in the "function selection C-4 (PC17)" of servo parameter
(expansion setting parameter), even if it does not pass zero point at the servo amplifier power ON, the home position return
is possible because the "[St.1066] Zero pass (R: M32406+32n/Q: M2406+20n)" turns ON.
• When executing home position return during servo OFF, fix the home position return target axis. (For servo motor speed of
20[r/min] or less, the home position return is completed.)
• Home position return is not performed at a servo error or forced stop. Perform a home position return after removing the
error cause and resetting the error.
• When performing data set method 3 home position return, do not change the servo ON/OFF status of the home position
return target axis while the home position return is being executed.
• The home position return data required for the data set method 3 are the home position return direction and home position
address.
5 POSITIONING CONTROL
390
5.21 Home Position Return
Machine travel range
Command position
at the home
position return start
Home position is the
real position at the
home position return