" Da.6

12CONTROL SUB FUNCTIONS

12.7.4 Teaching function

MELSEC-Q

The "teaching function" is used to set addresses aligned using the manual control (JOG operation, inching operation manual pulse generator operation) in the positioning data addresses (" Da.6 Positioning address/movement amount", " Da.7 Arc

address").

The details shown below explain about the "teaching function".

[1]Control details

[2]Precautions during control

[3]Data used in teaching

[4]Teaching procedure

[5]Teaching program example

[1]Control details

(1)Teaching timing

Teaching is executed using the sequence program when the BUSY signal (XC, XD, XE, XF) is OFF. (During manual control, teaching can be carried out as long as the axis is not BUSY, even when an error or warning has occurred.)

(2) Addresses for which teaching is possible

The addresses for which teaching is possible are "current feed values"

( Md.20 Current feed value) having the OP as a reference. The settings of

the "movement amount" used in incremental system positioning cannot be used. In the teaching function, these "current feed values" are set in the

Positioning address/movement amount" or " Da.7 Arc address".

Positioning data

Positions aligned by manual control

"Current feed value" A

"Current feed value" B

Da.6 Positioning address/movement amount

Da.7 Arc address

(3)Dedicated instructions "TEACH 1, TEACH 2, TEACH 3, TEACH 4, PFWRT"

When the dedicated instructions "TEACH 1, TEACH 2, TEACH 3, TEACH 4, PFWRT" are used to execute the teaching function, the programming becomes easier. Refer to Chapter 14 "Dedicated instructions" for details.

12 - 70

Page 546
Image 546
Mitsubishi Electronics QD75P Teaching function, Control details Teaching timing, Addresses for which teaching is possible