Fronius MAGIC WAVE 2600 FUZZY Mode D'emploi page 45

WELDING CURRENT DIAL
- For continuous adjustment of the welding current
ARC FORCE CONTROL DIAL
- Influences the short circuit amperage at the moment of drop
transfer (from electrode to workpiece)
At scale setting "0" TIG there is no increase at all in the short
circuit amperage at the moment of drop transfer (soft arc)
Range of application: TIG-DC welding, welding using rutile
electrodes (fine globules), basic sheathed electrodes in the
medium and upper amperage ranges
Caution! When welded at low load, basic-sheathed electro-
des tend to "GET STUCK" on the workpiece.
At scale setting "10" there is a very considerable in-crease
in amperage at the moment of drop transfer (hard arc).
Range of application: Basic sheathed electrodes (coarse-glo-
bule), when these are to be welded in the lower amperage range
(vertical-up seams, edge hardfacing welds, root welding etc.)
Practical tips! When the setting on the arc force control dial is
adjusted upwards, the following may be observed when rutile,
basic-sheathed or special electrodes are being used:
- Easy ignition
- Reduction in welding misfires
- Less electrode burn-on
- Good root penetration
- Occasionally an increase in spattering
- When welding thin sheet metal the danger of "burning through"
increases
With fine-globule electrodes (titanium) the above will not be ob-
served, as metal transfer occurs without a short circuit being
produced.
V
60
50
40
30
20
10
0 50 100
ARC FORCE
CONTROL DIAL
0
Fig. 21 Effect of arc force control dial
moment of short circuiting. Welding current setting 100 A
HOT-START control dial
- Only effective in the electrode ignition phase
- Improved ignition even with electrodes where ignition is
normally more difficult
- Improved melting of the base material in the ignition phase,
meaning far fewer cold laps
- Considerable reduction of slag inclusions
- Is added to the set welding current value on a percentage
basis
A
150 200 250
5 10
on constant-current characteristic at the
A
200
150
100
0
Fig. 22 Ignition phase using HOT-START control. Welding current setting 100 A
Important! The maximum setting for the HOT-START cur-
rent is limited by the maximum circuit of the machine.
POLE-CHANGING SWITCH (only for TP mc-CEL)
Electrode-polarity switchover facility.
Warning! The polarity set on the remote control unit has
priority, provided that the manual electrode cable is plugged
into the socket . If no remote-control unit is being used, the
polarities selected with selector button
Note! The pole-changing switch is not supported on the
TT2600 / 2600CEL / 3000 power source.
RANGE SWITCH for TIG and ELECTRODE
(only for TP mc-CEL)
Connecting the remote control unit:
- Use the remote control cable to create an electrical link bet-
ween the connecting socket
socket on the remote control unit.
- Insert the plug-in connections into the correct sockets and
screw the coupling ring on as far as possible.
- Shift the function selector button
operating mode in question
Welding without a remote control unit:
The parameters for Hot-Start and arc force are pre-set within the
machine to average (mean) values
Important! If the TPmcCEL remote-control unit is used with
the MW 2600CEL and TT 2600CEL power sources, the
output characteristic changes (drooping curve).
19
1.0 t sec
apply.
on the power source and the
into the right position for the