Yaskawa J50M Instructions User Manual

Page 48

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2.9.19 TOOL RADIUS COMPENSATION C
(G40, G41, G42) (Cent’d)

D.

Shape requiring care

Do not program a wedge shape having an
accute angle.

G42

5.

- - -

---

--

/

_ — -----------

.

The intersection is

located at a far point

Increase
the angle

G42 ,

I

(a) Wrong

Where the tool cannot

enter the wedge shape,

the intersection
is located on the opposite
s i d e .

G41

I

-

-

-

- - -

r

_ _ - - - - - -

- - - - - - -

- 1

Command involving no movement in compen-
sation mode

(b) Correct

Program a

the entry

path allowing
of the tool.

2.38

The blocks withno coordinate instructions

can be processed continuously up to two
blocks .

When coordinate instructions are

missing in three or more blocks, tool radius
compensation becomes impossible and accurate

The control normally reads in advance two

blocks during tool radius compensation mode

and computes the tool path.

If either of

tool path cannot be

Therefore, in

these blocks give no coordinate instructions

a Program where G41 or G42 is used, ensure

such as

(dwell) , the control reads the

that, after them, three or more blocks without

block further ahead and makes computing.

movement command plane will not follow.

40

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