Tpmc Remote Control Unit - Fronius TransTig 1600 Mode D'emploi

Pull back and
Release the torch trigger
t
I
H
I
H
O
Fig. 17 Functional sequence with the TR 51mc remote control spot-welding unit

TPMC REMOTE CONTROL UNIT

This workplace remote control unit is intended for use in particular
with manual electrode and TIG welding.
Fig. 18 TPmc remote control unit
WELDING CURRENT DIAL
l
For continuous adjustment of the welding current
ARC FORCE CONTROL DIAL
l
Influences the short circuit amperage at the moment of drop
transfer (from electrode to workpiece)
At scale setting "0" there is no increase at all in the short circuit
amperage at the moment of drop transfer (soft arc)
Range of application: welding using rutile electrodes (fine
globules), basic sheathed electrodes in the medium and upper
amperage ranges
Note! When welded at low load, basic-sheathed electro-
des tend to "GET STUCK" on the workpiece.
At scale setting "10"
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.)
there is a very considerable in-
Important! 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:
l
Easy ignition
l
Reduction in welding misfires
l
Less electrode burn-on
l
Good root penetration
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Occasionally an increase in spattering
l
When welding thin sheet metal the danger of "burning through"
increases
t
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
ARC FORCE
CONTROL DIAL
Fig. 19 Effect of arc force control dial
moment of short circuiting. Welding current setting 100 A
HOT-START control dial
l
Only effective in the electrode ignition phase
l
Improved ignition even with electrodes where ignition is
normally more difficult
l
Improved melting of the base material in the ignition phase,
meaning far fewer cold laps
l
Considerable reduction of slag inclusions
l
Is added to the set welding current value on a percentage
basis
A
200
150
100
0
Fig. 20 Ignition phase using HOT-START control. Welding current setting 100 A
Important! The maximum setting for the HOT-START current is
limited by the maximum circuit of the machine.
Connecting the remote control unit:
l
Use the remote control cable to create an electrical link bet-
ween the connecting socket
socket on the remote control unit.
l
Insert the plug-in connections into the correct sockets and
screw the coupling ring on as far as possible.
l
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
12
100
150 200
0 5 10
on constant-current characteristic at the
1.0
on the power source and the
into the right position for the
A
250
t sec