Miller Electric XMC 4000 manual Manual MIG Welding Advanced Settings

4-13. Manual MIG Welding Advanced Settings

To change all values list, unit must be	Setting Pre−Gas (only in MENU FULL)	D2 value is default setting of Auto (range is
MENU FULL. To set unit to MENU FULL,	Use E1 to change D1 to PREG.	1% to 200%).
proceed as follows:
		. Auto is a setting below 1% that pro-
Press P2 to enter SET UP menu.	D2 value is default setting of 0.0 s (range is
		vides an automatic backback time.
	0.0 s to 10.0 s).
Select MENU FULL on D1 and D2 (see
	Use E2 to change D2 value.	Use E2 to change D2 value.
Section 4-10).
		Setting Cooler Status
Wire Feed Speed Unit (only in MENU	Setting Post−Gas (only in MENU FULL)
		. Be sure that cooler is turned on for wa-
FULL)	Use E1 to change D1 to POSG.
Use E1 to change D1 to UNIT.	D2 value is default setting of 0.1 s (range is	ter-cooled torch to prevent damage to
		torch components.
D2 value is default setting of mpm (meter	0.0 s to 10.0 s).
		Use E1 to change D1 to W−UN.
per minute).	Use E2 to change D2 value.
		D2 value is default setting of ON.
Use E2 to change D2 to desired setting, ei-	Setting BurnBack
ther IPM (inches per minute) or CUR (weld-		Use E2 to change D2 value to OFF, if appli-
ing current in amperes).	Use E1 to change D1 to BURN.	cable.

4-14. Preparing Unit For Synergic MIG Welding

E1 D1 D2 E2

P3 P4 P5 P6 P7

Set Synergic MIG welding process using P3 push button.

In Synergic MIG mode, the operator may need to adjust welding data (wire type, wire diameter, and gas type) and only one weld parameter. Generally, wire feed speed is adjusted and the synergic process auto- matically sets appropriate weld voltage. Synergic welding also sets many secon- dary welding parameters automatically for improved weld quality.

Trim parameter appears on D1 and D2:

D1 value is default trim setting of 0.0 T (range is −5.0 T to 5.0 T).

D2 value is default wire feed speed setting of 5.0 m/min (minimum (MIN), maximum (MAX), or default (DEF) values are arbi- trary based on set welding data). Set wire feed speed in meters/min (M).

Select wire type using P4 push button. Select wire diameter using P5 push button. Select trigger mode using P6 push button. Set desired wire feed speed using E2.

Setting Trim

D1 value is default trim setting of 0.0 T (range is −5.0 T to 5.0 T).

Trim is an arbitrary value related to MIG arc length. Higher values produce a longer and hotter arc. Lower values produce a shorter and cooler arc. Recommended value for trim is default setting or near 0.0T.

.Trim setting may vary by a greater

amount depending on welding posi- tion, parameter settings, and quality of wire.

Setting Inductance

Press P7 until L17 LED illuminates.

L17 ON selects Inductance. Default setting is 100% (range is 1% to 200%). D1 and D2 return to main display after several sec- onds.

.Higher inductance setting produces a softer weld puddle and less spatter, but arc starts may be more difficult. Lower inductance setting produces a stiffer weld puddle and more spatter, but arc starts may be easier.

Setting Thickness

Press P7 until L18 LED illuminates.

L18 ON selects material thickness. D2 shows thickness in mm for the welding pro- cess.

Use E2 to change material thickness val- ue. This value is stored in process memory. Material thickness is a reference value only, not a mandatory setting. D1 and D2 return to main display when P7 is pressed again.

Setting Gas

Press P7 until L19 LED illuminates.

L19 ON selects type of gas. D1 will show GAS and D2 shows gas abbreviation as follows:

8218 = 82% Ar, 18% CO2 Ar = 100% Argon

CO2 = 100% CO2

9802 = 98% Ar, 2%CO2

Use E2 to change gas type. This setting is stored in process memory.

LED will turn off after several seconds and D1 and D2 will return to main display.

.D1 and D2 will show NO PROG or a

selection will not be allowed when there is no program for the process, material, wire diameter, and shielding gas combination.

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