Entron EN1000 series

Page 94 • 700120S • ENTRON Controls, LLC.
7.4.2 STEPPER OPERATION FOR STEPPER MODE
S.t.S.t.
S.t.S.t.
S.t.=
0202
0202
02
In this mode, the maximum number of steps is 50, which is possible only if a single schedule is
used per step. If more CHAINED schedules are required in a welding sequence, the number of
steps is determined by the number of CHAINED schedules used in each step.
The algorithm is almost identical to the one used for STEPPER mode
0101
0101
01 (see Figure 7-6),
except that only one stepper counter is used and when the LAST STEP is incremented, the
control will check if that number is greater than the maximum number of schedules, 49 in this
case, and then show END OF STEPPER message, if necessary. Also, stepper counter will be
decremented only if FS3 is used for initiation.
The following table demonstrates this mode with five CHAINED schedules per step or welding
sequence. WELD COUNT must be programmed in the first schedule of the CHAINED sequence.
Following the LAST STEP, the next schedule should be empty, in this example schedule 17. If
WELD COUNT in that schedule is 0000 that will indicate END OF STEPPER –
S.t.S.t.
S.t.S.t.
S.t.=
E.n.d.E.n.d.
E.n.d.E.n.d.
E.n.d.
Table 7-5. Programming for STEPPER mode
0202
0202
02
If STEPPER RESET is performed by holding ENTER and pressing both DATA push buttons
at the same time, the LAST STEP will be
L.S.L.S.
L.S.L.S.
L.S.=
0000
0000
00 in this example, and LAST COUNT
L.C.L.C.
L.C.L.C.
L.C.=
03250325
03250325
0325,
no matter which schedule is dialed on Front Panel display.
NOTICE
STEP COUNT
00 40 00
G!"
0325 00 20 00 01 00 01 02 00 00
01 10 25
G!#
xxxx 60 10 00 01 00 03 04 00 00
02 10 00
G!$
xxxx 00 00 00 01 00 01 02 00 00
03 30 20
G!%
xxxx 50 10 00 01 00 03 03 00 00
04 10 00
G!&
xxxx 00 00 00 01 00 07 00 00 00
05 40 00
G!'
0250 00 20 00 01 00 01 02 00 00
06 10 25
G!(
xxxx 65 10 00 01 00 03 04 00 00
07 10 00
G!)
xxxx 00 00 00 01 00 01 02 00 00
08 30 20
G!*
xxxx 55 10 00 01 00 03 03 00 00
09 10 00
G!+
xxxx 00 00 00 01 00 07 00 00 00
10 40 00
H!"
0195 00 20 00 01 00 01 02 00 00
11 10 25
H!#
xxxx 70 10 00 01 00 03 04 00 00
12 10 00
H!$
xxxx 00 00 00 01 00 01 02 00 00
13 30 20
H!%
xxxx 60 10 00 01 00 03 03 00 00
14 10 00
H!&
xxxx 00 00 00 01 00 07 00 00 00
15 30 20
H!'
0150 75 10 20 01 00 03 01 00 00
16 30 00
H!(
0001 00 00 00 01 00 04 00 00 00
17 00 00
H!)
0000 00 00 00 01 00 00 00 00 00
fifth step: LAST STEP is
7!=!
=
#(
and LAST COUNT
7!.!
will be from
"""#
to
""""
OFF IMPULSES COOL
VALVE
MODE
CYCLE
MODE
SLOPE
MODE
WELD STEPS
SCHEDULE SQUEEZE
WELD/
HEAT
PERCENT
CURRENT
HOLD
SLOPE
COUNT
first step: LAST STEP is
7!=!
=
""
and LAST COUNT
7!.!
will be from
"%$'
to
""""
second step: LAST STEP is
7!=!
=
"'
and LAST COUNT
7!.!
will be from
"$'"
to
""""
third step: LAST STEP is
7!=!
=
#"
and LAST COUNT
7!.!
will be from
"#+'
to
""""
fourth step: LAST STEP is
7!=!
=
#'
and LAST COUNT
7!.!
will be from
"#'"
to
""""