ESAB MultiPower 460 Pulse Manual de Instruções descarregar pdf (Página 26)

NOTE

If a Remote Hand Control is used for con-

tinuous current control, place the PANEL/

REMOTE switch in the PANEL POSITION

and set the Panel Current knob to the

maximum desired weld current. The re-

mote device will then control the current

between minimum and the maximum set-

ting preset (proportional current control).

Maximum Tig weld current is 525 amps.

Figure 4-1 Standard Tig Setup Procedure

NOTE

If the MP-460 PANEL/REMOTE switch

is left in the REMOTE position when Tig

welding while using a remote current

control device, the current range will

be full scale or 10 to 400 Amps.

Limiting the the maximum weld current

(proportional current control) using the

currnet control on the MP-460 front

panel is defeated.

NOTE

When using the MP-460 Pulse, the

STANDARD/PULSE switch must be in

the STANDARD position for proportional

current control using a TIG remote

current device.

SECTION 4 OPERATION

C. TIG WELDING

When the PROCESS switch is placed in the TIG position, the MultiPower 460

Pulse is automatically set for CC (constant current) welding using the ESAB

Touch TIG starting method. The voltage and current at the output terminals are

maintained at low values until the electrode is shorted to the workpiece.

Step 1. Be sure to set the polarity to DCEN (Electrode Negative) by connect-

ing the Tig torch to the negative terminal lug on the front of the power

source.

Step 2. Place the WELD PROCESS switch in the TIG position.

Step 3. Place the PANEL/REMOTE switch in the PANEL position.

Step 4. Place STANDARD/PULSE switch in the STANDARD position.

Step 5. While depressing the PRESET button, turn the VOLTAGE/CURRENT

knob to the desired weld current as displayed on the top digital dis-

play window.

Step 6. Set the shielding gas flow rate to 20 cfh by adjusting the control knob

on the flowmeter.

Step 7. Touch the tungsten electrode to the workpiece momentarily then lift 1/

16" off the workpiece to establish the welding arc. Trim the weld

current as desired by turning the VOLTAGE/CURRENT knob.

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