2
- (
2-step welding
)
It is necessary to keep digital input ON for the whole
process of welding. Releasing the input will stop the process and bring the controller
to
ready state
. A new welding will be triggered only from
ready state
of the
controller, i.e. previous welding finished and digital input OFF:
3
- (
Continuous mode
)
In this mode the welding process continues without
sparks with output power of
SP
. Releasing the input will stop the weld and finish the
cooling phase of the process. A new welding will be triggered only from
ready state
of the controller, i.e. previous welding finished and digital input OFF:
* When in
continuous welding mode
with the digital input ON, the value of the
output power
SP
can be changed directly via Modbus RTU command. This helps the
user find the suitable values in this welding mode, especially in the process of seam
sealing.
5
Fig
.3
Timing diagram for 2-step welding mode, N
=3 and S =2
i
b
The second release of the digital input will stop welding at the third spark
input
In
output
SP
*
input
In
Fig
.4
Timing diagram for continuous welding mode,
S =3
b
SP
output
*
changing value of SP via
Modbus
SP
T
off
T
off
T
p
T
p
T
p
T
p
T
e
T
on
T
on
T
on
T
on
T
on
T
on
SP
3
SP
2
T
off
T
e
T
off
T
e
