Automatic Positioning Function To The Home Position - Mitsubishi Electric MELSERVO-J2-Super Series Instruction Manual

5. OPERATION

5.4.11 Automatic positioning function to the home position

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
Manual home position return mode
selection
Home position return speed
Home position return acceleration
time constant
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 (RYn2) is ON, it will position automatically at the home
position.
Servo motor speed
Reverse rotation start (RYn2)
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.
Device/Parameter used
Automatic/manual selection (RYn6) Short MD0 ON.
Point table No. selection 1 (RYnA)
Point table No. selection 2 (RYnB)
Point table No. selection 3 (RYnC)
Point table No. selection 4 (RYnD)
Point table No. selection 5 (RYnE)
Parameter No.9
Point table No.1
Home position return speed
Acceleration time constant
Parameter No. 9
of point table No. 1
ON
OFF
Open DI0 OFF.
Open DI1 OFF.
Turn RYnC OFF.
Turn RYnD OFF.
Turn RYnE OFF.
Speed is set up.
Use the acceleration time constant of point table
No.1.
Deceleration time constant
of point table No. 1
Home position
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