Amada Miyachi Unitek STA-100A, Руководство по эксплуатации, Страница: 38 / 154

CHAPTER 3: USING STA SERIES CONTROL FUNCTIONS
STA SERIES AC CONTROLS
3-10 990-351
WELD MODE
– This control selects one of six welding modes:

Spot Weld Mode
– This is the basic default weld.

Repeat Mode
– When this mode is being used, the entire weld cycle from
Squeeze
through
OFF
is repeated as long as the start signal is present.
Squeeze Delay
occurs only for the first weld
cycle. The
OFF
time between repetitions is set by the program, but it will be a minimum of one
cycle (even if “
0
” cycle is selected).

Successive Mode –
This mode sequences through a series of previously selected and linked
weld schedules. Each schedule begins with the presence of a separate Start signal. There is a
pause between each schedule until a new Start signal is received. To set up a succession, select
the first desired schedule, then turn Successive Mode ON at the Mode screen. Repeat the
procedure for subsequent schedules in the succession. Then link the schedules together in the
correct sequence. (See Section VII: Linked Schedules Screen for this procedure.)
The
Successive Mode
can be started at any schedule in the linked sequence. To start in any
schedule in a link, press the
DATA+/-
keys to select the first schedule to be fired. Press the
PROGRAM/SAVE
key to save this schedule as the beginning of the sequence. Each subsequent
Start
signal will then cause the next schedule in the linked sequence to be selected. At the end
of the sequence, the weld sequence stops and awaits another start signal. The control returns to
the
first schedule fired in that succession whether or not that schedule is the first one in the
link
.
For instance, if schedules
01
through
06
are set up in the link, but the weld operation is started
with schedule
03
, after completing schedule
06
, the control will return to schedule
03
rather
than schedule
01
.
During welding in
Successive Mode
, the screen displays the currently active schedule.

Chaining Mode –
When in the Chaining Mode the operation sequences through a series of
linked weld schedules with the presence of only a single Start signal. Unlike the Successive
Mode, it does not pause between schedules.
To set up a sequence, select the first desired schedule, then turn
Chaining Mode ON
. Repeat the
procedure for subsequent schedules in the sequence. Then link the schedules together in the
correct sequence. (See Section VII: Linked Schedules Screen for this procedure.).
The
Chaining Mode
can be started at any schedule in the link sequence by selecting that
schedule with the display (using the
DATA +/–
key followed by the
Program/Save
key
)
and
applying a
Start
signal. The control returns to the first schedule fired in that chain (whether or
not that schedule is the first one in the link.). For instance, if schedules
01
through
06
are set up
in the chain, but the
Program/Save
key is pressed and the weld operation is started with
schedule
03
, after the completing schedule
06
, the control will return to schedule
03
rather than
schedule
01
.
NOTE: During welding in
Chaining Mode
, the
Monitor
screen does not display monitoring
results. At the completion of the chain, monitor results may be viewed for each weld
if WELD
ON/OFF
is turned
OFF
and the
DATA +/-
key is used to increment / decrement the schedule
number.