Automatic Positioning Function To The Home Position - Mitsubishi Electric MELSERVO-J3 Series Instruction Manual

5. OPERATION

5.6.14 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 detection 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/deceleration time
constants
Set up the home position return speed of the automatic positioning function to the home position by parameter
No.PC04. 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.
Forward rotation start (RYn1)
Reverse rotation start (RYn2)
Forward
rotation
Servo motor speed
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)
Point table No. selection 1 to 8
(RYnA to RYnE, RY(n 2)3 to RY(n 2)5)
Parameter No.PC04
Point table No.1
ON
OFF
ON
OFF
Home position return speed
parameter No.PC04
0r/min
Acceleration time constant
of point table No.1
Turn RYn6 ON.
RYnA to RYnE, RY(n 2)3 to RY(n 2)5 are
turned off.
Set the speed till the dog is detected.
Use the acceleration/deceleration time constant
of point table No.1.
Deceleration time constant
of point table No.1
Home position
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