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4. OPERATION
4.4.11 Automatic positioning function to the home position
POINT
You cannot perform automatic positioning from outside the position data
setting range to the home position. In this case, make a home position
return again using a manual home position return.
If this function is used when returning to the home position again after performing a manual home
position return after a power-on and deciding the home position, automatic positioning can be carried out
to the home position at high speed. In an absolute position system, manual home position return is not
required after power-on.
Please perform a manual home position return beforehand after a power-on.
Set the input signals and parameter as follows.
Item Device/Parameter used Description
Automatic/manual selection (MD0) Short MD0-SG (ON).
Point table No. selection 1 (DI0) Open DI0-SG (OFF).
Manual home position return mode
selection
Point table No. selection 2 (DI1) Open DI1-SG (OFF).
Home position return speed Parameter No.9 Speed is set up.
Home position return acceleration
time constant
Point table No.1
Use the acceleration time constant of point table
No.1.
Set up the home position return speed of the automatic positioning function to the home position by
parameter No.9. Use the data of point table No.1 to set the acceleration time constant and deceleration
time constant. When reverse rotation start (ST2) is ON, it will position automatically at the home
position.
ON
OFF
Acceleration time constant
of point table No. 1
Deceleration time constant
of point table No. 1
Home position
Home position return speed
Parameter No. 9
Servo motor speed
Reverse rotation start (ST2)
ON
OFF
Forward rotation start (ST1)