PN-0908073 Rev. 11 41-92
PS 164-2
THE ART OF WELDING
Control of an external speed variator
It is possible to control an external speed variator.
There are two possibilities to program the reference
number R30:
For a time base of 1/10 seconds the letter I followed
by 0,1 s has to be introduced (R30 = I0,1s).
For a time base of seconds the letter I followed by 1 s
has to be introduced (R30 = I1s).
The weld cycle is now controlled by time (1/10 sec-
onds or seconds) and not by the position of the weld-
ing head (impulse control). The internal clock of the
power source is generating the impulse signals.
To command the external speed variator, an interface
(signal generation for start and direction of rotation)
has to be connected to the rotation plug FA 3 of the
power source.
Control of the power source by manual plug
welding head (FA5)
Use of a manual torch
- R30=yyyy
• Working cycle without movements and pulsing
• Downslope
• End of cycle
Use of a welding head
- R30=yyyy C (MW40, MW65, MW115 and MW170)
• Rotation of the head
• Test gas and cooling agent
• Starting cycle without considering the open posi-
tion of the welding head but with the head going
back to the open position at the end of the cycle
• Downslope
• End of cycle
Use of other heads
- R30=yyyy X
• Rotation of the head
• Test gas and cooling agent
• Starting cycle considering the open position of the
head and with the head going back to the open
position at the end of the cycle
• Downslope
• End of cycle