Miller Electric Big 40 CAT manual Process/Contactor Switch On CC/CV Models

7-3. Process/Contactor Switch On CC/CV Models

						1		Process/Contactor Switch
							Y Weld output terminals are ener-
								gized when Process/Contactor
						1		switch is in an Electrode Hot posi-
								tion and the engine is running.
							Y DC voltage is still present at the
								weld terminals when Process/
								Contactor switch is in the Remote
								− Stick position and the engine is
								running.
							Use switch to select weld process and
							weld output on/off control (see table be-
							low and Section 7-4).
							Place switch in Remote positions to turn
							weld output on and off with a device con-
							nected to the remote 14 receptacle.
							Place switch in Electrode Hot positions
							for weld output to be on whenever the en-
							gine is running.
							Use Stick position for air carbon arc
							(CAC-A) cutting and gouging.
							When switch is in a Stick position, the arc
							drive (dig) circuit provides additional am-
							perage during low voltage (short arc
							length conditions) to prevent “sticking”
							electrodes.
							The arc drive (dig) circuit is disabled
							when switch is in MIG or TIG positions.
							. Place switch in Electrode Hot - Stick
								position when using optional three−
								phase generator (see Section 8-2).
							. The engine auto idle option does not
								work in the Remote-TIG mode.
					Process/Contactor Switch Settings
Switch Setting				Process			Output On/Off Control		Engine Auto Idle (Optional)
Remote − TIG		GTAW With HF Unit, Pulsing					At Remote 14 Receptacle		Not Active
		Device, Or Remote Control
Remote − Stick	Stick (SMAW) With Remote On/Off						At Remote 14 Receptacle		Active
Remote − MIG			MIG (GMAW)				At Remote 14 Receptacle		Active
Electrode Hot − MIG			MIG (GMAW)				Electrode Hot		Active
			Stick (SMAW),
Electrode Hot − Stick	Air Carbon Arc (CAC-A) Cutting						Electrode Hot		Active
			And Gouging
Electrode Hot − Scratch		Scratch Start TIG (GTAW)					Electrode Hot		Active
Start TIG

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