Lincoln Electric IM732-B manual Auxiliary Power, Limitations, Recommended Processes

	OPERATION		B-4
B-4
TIG mode		Types of Remote WELD TERMINAL Control
• The remote will default to the 6-pin MS-style if a
		• The Invertec® V350-PRO (CE)’s Weld Terminals
remote control is connected to the 6-pin MS-style		can be controlled from each of the amphenol con-
and to the 14-pin MS-style connectors. If a remote is
		nectors. The circuit has a nominal OCV of 15VDC
not connected to the 6-pin MS-style connector then
		and requires a dry contact closure (less than 100
the remote will default to the 14-pin MS-style con-
		ohms) to activate the output of the Invertec® V350-
nector if a remote is connected.		PRO (CE).
• If a remote control is connected to any of the
		• 14 Pin Amphenols the Weld Terminals are controlled
amphenols the WELD TERMINAL control will
		from pins C (lead 2) and pin D (lead 4). Pin C is posi-
default to REMOTE. If there are not any remote
		tive.
control devices attached the WELD TERMINAL con-
		• 6 Pin Amphenol the Weld Terminals are controlled
trol will default to ON.
		from pin D (lead 2) and pin E (lead 4). In the 6-pin
CC-Stick modes		amphenol pin D is positive.
• The remote will default to only the 6-pin amphenol if		AUXILIARY POWER
a remote is connected to it.
		• 42VAC and 24VAC power is available from the 14-
• The WELD TERMINAL control will default to ON
		pin MS-style connector. These supplies are intend-
with or without a remote connected.
		ed to supply power for auxiliary equipment like wire
Types of Remote OUTPUT CONTROL		feeders.
		• 42 VAC supply is rated at 5.5 amps and is protected
• The Invertec® V350-PRO (CE)’s Output Control can
		by a 10 amp breaker located by the amphenol.
be controlled by either a potentiometer connected
		• 24 VAC supply is rated at 5.5 amps and is protected
between 77 & 75 with the wiper connected to 76 or
		by a 10 amp breaker located by the amphenol.
a 0V to 10V DC supply connected between 76 & 75.
(76 needs to be positive)		LIMITATIONS
• 14-pin MS-style connector lead 75 is pin G, lead 76
		• The V350-PRO (CE) is not recommended for
is pin F and lead 77 is pin E.
		processes other than those listed.
• 6-pin MS-style connector lead 75 is pin C, lead 76 is
		• The V350-PRO (CE) can only be used with the rec-
pin B and lead 77 is pin A.
		ommended equipment and options.
Potentiometer Control		RECOMMENDED PROCESSES
• The total resistance should be between 2000 ohms
		Properly equipped, the Invertec® V350-PRO (CE)
(2K) and 10,000 ohms (10K)		supports GMAW, FCAW, SMAW, GTAW and CAC-

• The machine output will be at minimum when lead	A processes for a variety of materials, including
76 (wiper) is at the end of the potentiometer that is
	mild steel, stainless steel, cored wires, and alu-
connected to 75. The machine’s output will increase
	minum
as the wiper of the potentiometer is moved to the
end that is connected to 77. (Note: In TIG mode,
moving the lead 76 (wiper) to lead 77 would pro-
duce the current that has been set by the Invertec®
V350-PRO (CE)’s front panel Output Control.)
• Remotes of this type offered by Lincoln Electric are
the K857, K812 and K870.

Voltage Control

•The supply should be an isolated supply. (Not refer- enced to earth ground, any auxiliary power from the Invertec® V350-PRO (CE) or the welding output) The supply should be capable of supplying at least 20mA.

•0 volts supplied to 76 will set the Invertec® V350- PRO (CE) to minimum output for the mode that has been selected while 10 volts supplied to 76 will set the Invertec® V350-PRO (CE) to the maximum out- put for the mode. (Note: In TIG mode, 10 volts sup- plied to lead 76 would produce the current that has been set by the Invertec® V350-PRO (CE)’s front panel Output Control.)

INVERTEC® V350-PRO (CE)