Yaskawa J50M Instructions User Manual

Page 20

2.5.1 S 2-DIGIT PROGRAMMING (Cent’d)

EXAMPLE

S 1000 M03 ;

SPEED

1000

COO S11 M03 ;

. . . S command

Spindle CW

S11: Effective

Y.. . z.. . ;

Z.. . F.. . ;

GOO x.. .

Y.. . Z.. . M05 ; Spindle stop

M03 ;

x.. .

Y.. . z.. . ;

S11: Effective

Z.. . F.. . ;

S22 ;

x.. .

Y.. . F.. . ;

S22: Effective

Note : The two-digit BCD output is sent 10 the machine
when S two-digit command is issued.

2.5.2 S 5-DIGIT PROGRAMMING

With five digits written after an address character

S(S

spindle speeds (rein-l) are directly

commanded.

The programmed speeds become effective upon
the inputting of an S-command-comple tion-input-
signal (

When an S command is programmed in the same

block with

(spindle forward run) or M04

(spindle reverse run) , the execution of the next

block starts only after the spindle speed reaches
the level specified by the S command, in most
cases.

However, for exact behavior of the ma-

chine tool under consideration, refer to the ma-
chine tool

manual.

The S commands are modal, and when it is pro-
grammed once, it remains effective until another

command is programmed.

Even when the spindle

is stopped by M05, the S command remains ef-

fective.

Therefore, when the spindle starts

again with an M03 (or M04) , the spindle runs at
the speed specified by the S command.

When the spindle speed is to be changed by a
new S command after it is started with an M03 or
M04, attention must be paid to the selected spin-

dle speed range.

Notes :

The lower limit of programmable S commands

(SO and other S commands near O)

determined

by the spindle motor of the machine tool. Refer
to the machine tool builder’s manual.

Do not

program minus values as S commands.

, When the control is equipped with the S 5-digit

command function , spindle speed overriding
is possible.

That is, override speeds between

50 and 120% of the commanded spindle speed

can be obtained at intervals of 10%.

COMPLETION OF

START

BLOCK

Fig. 2.7

2.6 TOOL FUNCTION (T-FUNCTION)

2.6.1 T 2-DIGIT PROGRAMMING

Two digits, following the address T , specify the
tool number.

Leading zeros may be omitted.

Tool number

The figures used for the designation of tool num-

ber are determined by the machine. Refer to

the machine tool builder’s manual.

When a move command and a T code are issued

simultaneously ,

the two commands are executed simultaneously,
or
the T command is executed upon completion of
the execution of the move command,

depending on the design of the machine.

For this, refer to the machine builder’s manual.

T codes are modal, and therefore, once they
are given , they remain effective until another
T command is given.

T code commands are generally for making
automatic tool changers

to select the

tool number to be used next. Therefore, they
can be given without regard to the G, H “or D
codes which are for offsetting for the length
or radius of the tool currently in use.

2.6.2 T 4-DIGIT

PROGRAMMING

Four digits following the address T specifies the
tool number.

Leading zeros may be omitted.

T o o l n u m b e r

This tool code is the same as the T 2-digit codes,
except for the increased number of digits.