YASKAWA YASNAC J50 Connecting Manual page 148

20.2.11 SINGLE BLOCK (SBK) INPUT
This input is for executing part programs by one block in the auto-
matic operation mode. With the control in the automatic operation
mode, and the SBK input contact closed, when an automatic ope-
ration cycle is started, the part program is executed only by one
block, and the machine stops. When the SBK input contact is
closed during the execution of a part program, the control stops the
machine after the execution of the current block.
For details of the use of single block during the execution of
. . . . .
.."...- -----
mtrltlple cycles, macro programs, rerer to tne
Instruction Manual
(TOE-C843-12.30).
20.2.12 OPTIONAL BLOCK DELETE
BDT9) INPUT
rAbNAL
J3UIV1
(BDT, BDT2-
This input is for determining whether data between"/" and "EOB"
in a part program is executed or neglected when the part program
contains" /".
Table 20.5
~
I
'eg'ec'ed
'a'abetween
BDT INPUT CLOSED
J
"f" or "/1" and
"EOB"
(End of block)
BDT2 INPUT CLOSED
!
"/2" and "EOB"
BDT31NtWTCLOSt3D I ",3$and''EOB>>
BDT41NPUTCLOSED I "/4'>and''EOB,
BDT5 INPUT CLOSED ccf5° and "EOB"
BDT6 INPUT CLOSED "/6" and "EOB"
BDT7 INPUT CLOSED
"/7" and "EOB"
BDT8 INPUT CLOSED
"/8" and "EOB"
BDT9 INPUT CLOSED "/9" and "EOB"
Notes:
1. Data can be neglected only when part programs are
executed. When storing or processing part programs, this
input has no effect.
2. Whether data may be neglected or not depends on the state
of the optional block skip input relay when the block
containing "/" in a part program is stored in the buffer.
Therefore, when controlling the optional delete input relay
by an extemrd circuit with the use of the auxiliary function,
take care to set the input state before the block containing "/"
is stored in the buffer.
20.2.13 MACHINE LOCK (MLK) AND DISPLAY LOCK
(DLK) INPUT
(1) Machine Lock (MLK) Input
This is the input for preventing the output of control output
pulses to the servo unit. While the MLK input contact is closed,
even when the logic circuit distributes pulses in the automatic
and man-ual operation modes, the machine does not move. As
the logic cir-cuits distribute pulses, the current value display
changes with the instructions. The controller must be stopped
while MLK contact is closed or opened. The operation is not
influenced except during block stop or feedhold state.
(2) Display Lock (DLK) Input
This input is for preventing the output pulses of the control from
being displayed on the external current value display. While the
DLK input contact is closed, even when the machine is
controlled automatically or manually, the external current value
display (CRT-POS "EXTERNAL") does not change.
20.2.14 DRY RUN (DRN) INPUT
This input is for changing the feed rates of the tools during the
execution of part programs in the automatic mode to the rates
selected by the manual continuous feed selection inputs (JV1, 2, 4,
8 and 16).
While the DRN input contact is closed, the feedrate during the
execution of part programs in the automatic mode are changed from
the programmed ones to the ones selected by the manual continuous
feed selection inputs.
When the DRN input contact is closed or opened during the auto-
matic operation of the control, the following change takes place.
During mm/rev feeding:
No change of feedrate for the current block.
During mm/min feeding:
Feedrate changes even during the current block.
NOTE
When parameter #6006 D2 is set to 1, while the DRN input contact
is closed, the feedrate in positioning command is changed to a
manual continuous feedrate.