Yaskawa J50M Instructions User Manual

Page 177

5.1.15 MANUAL REFERENCE POINT RETURN SWITCH

This switch is for bringing the tool back to the reference

point manually.

For its operation method, refer to 5.2.1 “MANUAL
RETURN TO REFERENCE POINT’.

5.1.16 REFERENCE POINT LAMPS

These lamps indicate that the tool is positioned

on the reference point.

They light when the tool

is brought to the reference point through the
manual or automatic return to reference point

(

, or by the reference point return check

( G27) , and goes out as the tool moves away from

the reference point by subsequent operation.

REFERENCE

OFF

Fig. 5.10

5.1.17 SINGLE BLOCK SWITCH

Turning on this switch permits individual

by-block operation.

Turning on this switch after

finishing the current block in the automatic oper-
ation mode, the machine stops. A block of data

is executed each time the CYCLE START push-
button is activated.

SINGLE
BLOCK

OFF

Fig. 5.11

5.1.18

OPTIONAL STOP SWITCH

This switch is to execute

command in auto-

matic operation mode (TAPE, MEM or

When the switch is on , the program stops on
completion of the block including

command,

while CYCLE START pushbutton remains illu-

minated.

When the control catches FIN signal,

the light is extinguished. To restart the pro-
gram, depress the CYCLE START button.

When the switch is off, MO1 command is ignored.

Operation of the switch is not effective for the

block being executed.

During the automatic op-

eration, the switch acts for the next block.

5.1.19 OPTIONAL BLOCK SKIP SWITCH

While the switch is on, all the commands in
a block programmed after a “/“ are neglected.
However, block data appearing before the

“ /“ remains effective.

While this switch is off,

including a

are executed along with other blocks.

This switch is ineffective on the

under

execution and blocks stored in the
reading buffer .

When this switch is turned

on during an automatic operation cycle , it
works on the block read after the switching
on has

Notes :

The two commands “ and “ /1” are equivalent.

With the control provided with the optional

block skip B function 8 independent
can be skipped with the switching of the

switches corresponding to “ /2” through “

“

5.1.20 DRY RUN SWITCH

Turning on the DRY RUN switch in the TAPE,
MD I or MEM mode causes the tool to move at the
speed selected by the JOG FEEDRATE switch,

ignoring

programmed

F com-

mands can be displayed as they are programmed.
This switch may be used to check the program .

Rapid traverse ( GOO) rate for dry run operation
can be set by setting parameter #

Table 5.5

Parameter

Rapid Traverse at

Dry Run Operation

* The tool moves at the traverse rate

set by RAPID TRAVERSE RATE
OVERRIDE switch if provided.

Notes :

Switching

the DRY RUN switch during auto-

matic operation becomes effective on the current
block .

Switching it in mm /rev

or during

tapping becomes effective on the next block.

During tapping , the set speed when tapping

starts will be kept.

It cannot be changed by

JOG operation during dry run operation .

RUN

OFF

Fig. 5.12

This switch selects whether the data in blocks
including a “ is disregarded or not.

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