Lincoln Electric SVM158-A service manual Operation

B-3 B-3

OPERATION

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•The unit will power up in "pre-determined preferred" trigger modes.

STICK = ON

CV = REMOTE

TIG = REMOTE if remote output controls are attached to the machine.

TIG = 0N if remote output controls are not attached to the machine.

For all versions, these trigger modes can be over-ridden (switched) with the WELD TERMINALS push button. When changed, the unit will power up in the configuration it was in when it was last powered down.

5. THERMAL

•This status light indicates when the power source has been driven into thermal overload. If the output terminals were "ON", the "ON" light will blink indicating that the output will be turned back on once the unit cools down to an accept- able temperature level. If the unit was operating in the "REMOTE" mode, the trigger will need to be opened before or after the thermal has cleared and closed after the machine has cooled down to an acceptable temperature to establish output.

6. CONTROL-REMOTE / LOCAL

•Two status lights indicate the location of output control as pre-determined by the power sources auto-configure sys- tem.

•The LOCAL display will be lit when control is at the power source.

•The REMOTE display will be lit when a remote pot/control is detected.

These Output Control configurations can be overridden (switched) with the CONTROL push button. When changed, the unit will power up in the configuration it was in when it was last powered down.

7.WELD MODE SELECT - FACTORY AND CONSTRUCTION (See Figure B.1)

The Mode Control button selects from the following welding modes.

CC-STICK SOFT: The Stick Soft process features con- tinuous control ranging from 5 to 425 amps. This mode was intended for most SMAW applications, and Arc Gouging.

•Arc Gouging: Setting the output of the Stick Soft mode to 425 amps will enable the arc-gouging mode. The actual output current will depend on the size of carbon used. The recommended maximum size carbon is 5/16".

•The Hot Start control regulates the starting current at arc initiation. Hot Start can be adjusted from min- imum (0), with no additional current added at arc start, to maximum (10), with double the preset cur- rent or 425 amps (max of machine) added for the first second after arc initiation.

•The Arc Control regulates the Arc Force to adjust the short circuit current. The minimum setting (-10) will produce a "soft" arc and will produce minimal spatter. The maximum setting (+10) will produce a "crisp" arc and will minimize electrode sticking.

CC-STICK CRISP:The Stick Crisp mode features con- tinuous control from 5 to 425 amps. This mode was intended primarily for pipe welding applications.

•The Hot Start control regulates the starting current at arc initiation. Hot Start can adjust starting current up or down by 25% of the preset value. The recom- mended setting for Hot Start is 5 where the initial cur- rent is equal to the preset current.

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Hidden Middle Control Panel – Mode Panel

		FIGURE B.1.
1								2
5		AMPS			VOLTS			3
6	CONTROL					WELD TERMINALS
		REMOTE				REMOTE		4
		LOCAL		OUTPUT		ON
	SELECT						SELECT
7				HOT START		ARC CONTROL
	CC-STICK SOFT	7018		5	6		0
				4		-2
							+2
	CC-STICK CRISP 6010		3		7	-4	+4
	TIG GTAW		2		8	-6	+6
	CV-WIRE		1		9	-8	+8
								8
	CV-FLUX CORED		SELECT	0	10	-10	+10
						SOFT	CRISP
11
12								9
								10

V350-PRO