LOWER CASE PANEL
The output studs, line switch and remote connector are located on the lower case front.
9. Both STUDS contain "Twist-Mate" connector inserts.
•The Negative stud is configured to accept the pass through gas system.
10. The ON-OFF switch is a 3-phase circuit breaker rated at 100 amps per leg.
11.The METER POLARITY switch is located above the output connectors. The switch provides a work connection for wire feeder voltmeters. Place the switch in the position of the electrode polarity indi- cated by the decal. The switch does not change the welding polarity.
12.6-PIN MS-style connectors for remote control.
REMOTE CONTROL of the OUTPUT CONTROL and
WELD TERMINALS
The Invertec V350-Pro has auto sensing of remote output controls.If after connecting or removing a remote, the Invertec V350-Pro did not configured the way you would like the local or remote control settings can be changed by pushing the OUTPUT CONTROL or WELD TERMINAL button. (A user cannot select between the 6 and 14 pin MS-style connectors.)
CV modes
•The remote will default to the 14-pin MS-style con- nectors remote if a remote is connected to either of the 14-pin MS-style connectors and the 6-pin MS- style connectors. Note: Only one of the 14-pin MS- style connectors can have a remote control connect- ed at a time. If no remote is connected to either of the 14-pin MS-style connectors then the remote will default to the 6-pin MS-style connectors if a remote is connected to it.
•In all of the CV modes, the WELD TERMINAL con- trol will default to REMOTE.
TIG mode
•The remote will default to the 6-pin MS-style if a remote control is connected to the 6-pin MS-style and one of the 14-pin MS-style connectors. If a remote is not connected to the 6-pin MS-style con- nector then the remote will default to the 14-pin MS- style connector if a remote is connected to one of the 14-pin MS-style connector.
•If a remote control is connected to any of the ms- style s the WELD TERMINAL control will default to REMOTE. If there are not any remote control devices attached the WELD TERMINAL control will default to ON.
CC-Stick modes
•The remote will default to only the 6-pin MS-style connector if a remote is connected to it.
•The WELD TERMINAL control will default to ON with or without a remote connected.
Types of Remote OUTPUT CONTROL
•The Invertec V350-Pro’s Output Control can be con- trolled by either a potentiometer connected between 77 & 75 with the wiper connected to 76 or a 0V to 10V DC supply connected between 76 & 75. (76 needs to be positive)
•14-Pin Ms-style connector lead 75 is pin G, lead 76 is pin F and lead 77 is pin E.
•6-Pin Ms-style connector lead 75 is pin C, lead 76 is pin B and lead 77 is pin A.
Potentiometer Control
•The total resistance should be between 2000 ohms (2K) and 10,000 ohms (10K)
•The machine output will be at minimum when lead 76 (wiper) is at the end of the potentiometer that is connected to 75. The machine’s output will increase 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’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 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 to minimum output for the mode that has been selected while 10 volts supplied to 76 will set the Invertec V350-Pro to the maximum output for the mode. (Note: In TIG mode, 10 volts supplied to lead 76 would produce the current that has been set by the Invertec V350-Pro’s front panel Output Control.)
Types of Remote WELD TERMINAL Control
•The Invertec V350-Pro’s Weld Terminals can be controlled from each of the MS-style connectors. The circuit has a nominal OCV of 15VDC and requires a dry contact closure (less than 100 ohms) to activate the output of the Invertec V350-Pro.
•14-Pin MS-style connectors, the Weld Terminals are controlled from pins C (lead 2) and pin D (lead 4). Pin C is positive.
•6-Pin MS-style connectors, the Weld Terminals are controlled from pin D (lead 2) and pin E (lead 4). In the 6-pin ms-style connectors pin D is positive.
