Welding control modes
The following four welding modes with respect to the digital input are available,
depending on the value of
S
parameter:
b
The option for
multi-spark welding
is available for all modes except for
continuous welding
.
It can be used by setting parameter
N
to a value, greater than
i
1, for the number of sparks(impulses) when welding non-flat items. In this case, the
user can set different values for the power of the second (
SP
) and third
(SP
) sparks.
2
3
0
- (
Trigger on initial pressing
)
It is necessary to keep digital input ON for the
whole phase of pressing (
T
), after that the welding process will continue straight to
off
the final cooling phase regardless of the input state. A new welding will be triggered
only from
ready state
of the controller, i.e. previous welding finished and digital input
OFF:
1
- (
Repetitive welding
)
It is necessary to keep digital input ON for the whole
process of welding. Releasing the input will stop the repetitions and bring the
controller to
ready state
. After one weld is completed, there will be a delay of
T
d
seconds before the next one starts:
Fig
.1
Timing diagram for welding trigger on initial pressing, N =4 and
S =0
i
b
* The second input triggering does not start real welding
SP
T
off
T
off
T
p
T
p
T
p
T
p
T
p
T
p
T
e
T
e
T
on
T
on
T
on
T
on
T
on
T
on
T
on
T
on
input
In
T
off
output
4
*
*
*
Fig
.2
Timing diagram for repetitive welding mode,
N
=4 and S =1
i
b
the digital input is released at the end of third spark of the second weld
delay
input
In
output
SP
3
SP
2
T
off
T
off
T
p
T
p
T
p
T
p
T
p
T
e
T
on
T
on
T
on
T
on
T
on
T
on
T
on
SP
SP
3
SP
2
T
d
