5 stopper type home position return, Operation – MITSUBISHI ELECTRIC MR-J2S- CP User Manual

Page 123

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4. OPERATION


4.4.5 Stopper type home position return

In stopper type home position return, a machine part is pressed against a stopper or the like by jog
operation, manual pulse generator operation or the like to make a home position return and that position
is defined as a home position.

(1) Signals, parameters

Set the input signals and parameters 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).

Stopper type home position
return

Parameter No.8

3 : Stopper type home position return is

selected.

Home position return
direction

Parameter No.8

Refer to section 4.4.1 (2) and choose the home
position return direction.

Home position return speed

Parameter No.9

Set the speed till contact with the stopper.

Stopper time

Parameter No.44

Time from when the part makes contact with
the stopper to when home position return data is
obtained to output home position return
completion (ZP)

Stopper type home position
return torque limit

Parameter No.45

Set the servo motor torque limit value for
execution of stopper type home position return.

Home position return
acceleration time constant

Point table No.1

Use the acceleration time constant of point table
No.1.

Home position return
position data

Parameter No.42

Use to set the current position on completion of
home position return.

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