Yaskawa J50M Instructions User Manual

Page 187

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(7) When the search is completed, the CRT

screen automatically displays the program restart
information,

PROGRAM RETURN

00001

M

03 33

06 45

x

100.000

63 ** ** ** **

Y- 200.000
z

300.000

A

45.000

(

I N C R E M E N T

)

M COUNT

(

X- 248.774
Y

483.123

T 0015 0025

Z- 182.347

s 0500

A

73.442

B 0000

PRN

RDY

Fig. 5.31 Display of Program

Rest art Information

a.

Position ( UNIVERSAL) indicates the position

of machining restart.

Normally, this position is

the start point of the block on which the
hold operation was performed.

b. Position (INCREMENT) indicates the distance
from the current tool position to the machining
restart position.

c.

The M codes and the number of M codes

designated (M COUNT) from the head of the pro-
gram to the block of the specified sequence num-
ber are displayed.

However, if the number of

designated M codes exceeds 35, the 35 M codes
as counted from the specified block are displayed.

d. The two last T codes specified up to the
designated block are displayed.

e .

The last S code specified up to the designated

block is displayed.

f. The last B code specified up to the designated
block is displayed.

Note:

The M codes and T codes are displayed in

the order in which they were specified. The
code displayed last is nearest the designated
block .

(8) Turn off PROGRAM RESTART switch on the

machine control station.

(9) Look at the displayed program restart infor-

mation and specify the M, T, S, or B code
necessary for the restart as shown below :

a.

Set MD I mode.

b .

Press PROG function key.

c.

Key-in the necessary M, T, S, or B code and

depress WR key.

d. Press CYCLE START button.

e. Press POS function key and check the dis-

play of program restart information.

(10 ) Set the memory mode.

( 11) Depress CYCLE START button.

The tool moves to the machining restart position, axis
by axis ; that is, the 4th axis, X-axis, Y-axis and Z-axis,
in this order. Then, the automatic operation restarts
from the head of

block (on which the feed-hold oper-

ation was performed) that follows the block of the desig-
nated sequence number.

( 12) The macro program by the T or M code upon

program restart can be selected to be executed or
prohibited, by the parameter. Among the macro
programs by the T or M code when restarting the
program,

execution /prohibition of #6130 ( M macro)

and #6134 (T macro) can be selected by parameter
setting (2 bits).

Setting parameters
#6073 Do
= 1 : Prohibit execution of the M code macro
= O : Allow execution of the M code macro

#6073
. 1 : Prohibit execution of the T code macro
= O : Allow execution of the T code macro

5.2.4.2 PROGRAM RESTART OF TYPE Q

If the coordinate system is changed by any of the
following operations performed after the inter-
ruption automatic operation, use the program
restart of type Q :

(1) The machine power was turned off.

(2) G92 is specified by MDI operation.

(3) The setting of work coordinate system is

specified.

(4) The automatic setting of work coordinate system
was specified by reference point return.

(5) ORG key was depressed.

Operation

Procedure

The automatic operation interrupted by any of
the above operations may be resumed using the
following procedure:

(1) When the machine power is turned on after

the interruption of machining , perform the nec-
essary operations such as reference-point return.

(2) Manually move the tool to the start point (of

machining) of the part program .

Change the

tool offset amount if necessary.

(3) Turn on PROGRAM RESTART switch on the

machine control station.

179

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