Yaskawa J50M Instructions User Manual

Page 180

YASNAC

5.1.26 TOOL LENGTH MEASUREMENT PUSHBUTTON
AND

Use

the WRITE button, to automatically store

the amount of Z-axis move manually made

between

and ‘t base-position”

directly in the tool offset memory. For

operating procedure,

to 5. 2.3 Automatic

Tool Length Measurement .

TOOL

MEASURE-

WRITE &

RETRACT

Fig. 5.19

5.1.27 START LOCK SWITCH

When the START LOCK is on, CYCLE START

pushbutton does not function. Use the START

LOCK input to prevent operating the machine in
abnormal condition during automatic operation.
The input may be used as on /off switch on con-
trol station for machine.

Fig. 5.20

Note :

START LOCK

is not effective during feed

hold.

5.1.28

EDIT LOCK SWITCH

Turning on the EDIT LOCK switch prevents the function

of ERS, INS and ALT keys, and storing from NC tape.

When editing is made with EDIT LOCK switch turned on,

“EDIT LOCK” blinks on the CRT display.

5.1.29 AXIS INTERLOCK INPUT

The control is provided with AXIS INTERLOCK

input for each axis to prevent axis motion .

Interlocking an axis in feed motion causes the
axis to slow down to a stop. When the interlock
is released, the axis motion finishes the inter-
rupted block and proceeds to the next.

AXIS

INTER

LOCK

ITX

‘x

I TY

AXIS

INTERLOCK

IT.

Fig. 5.21

5.1.30 EXTERNAL DECELERATION INPUT

In order to eliminate the danger of high speed
contact at speed end caused by erroneous motion
commands , limit switches for originating external
deceleration input signals may be installed at
selected points.

During rapid traverse

and manual

operation

When the limit switch is tripped by the tool
movement, the traverse speed is decelerated

in the tripping direction to a level set by

the parameter #6340.

In the direction oppo-

site to the tripping direction, the original
speed remains unchanged.

During motion at feedrate ( G 94)

While the limit switch is being tripped, the
tool moves at a speed set

the parameter

#6341.

If the feedrate set by the F command

is lower than the rate set by the parameter,

the original feedrate remains unchanged.

sPEED

SET PARAMETER

‘\\

#6 340

SPEED SET BY

#6341

t ( x )

TRAVERSE RATE

LIMIT

RELEASED

OPERATED

Fig. 5.22

Interlocking one of the two or three axes being
simultaneously interpolated disables the inter-
polation

172