Lincoln Electric IM544-B manual Wire Feed Constant Voltage WELD- ING

B-9 OPERATION B-9

WIRE FEED (CONSTANT VOLTAGE) WELD- ING

(Stick and Wire models only)

Connect a wire feeder to the Commander 400 and set the welder controls according to the instructions in “Controls and Settings” in this section of the manual.

The Stick and Wire model of the Commander 400 with its CV tap, permits it to be used with a broad range of flux cored wire (Innershield and Outershield) electrodes and solid wires for MIG (GMAW).

For any electrodes, the procedures should be kept within the rating of this machine. For additional electrode infor- mation, see Lincoln publications N-675, GS-100 and GS- 210.

STICK AND WIRE MODEL CONNECTION TO LN-7 or LN-8

a.Shut the welder off.

b.Connect the LN-7 or LN-8 per instructions on the appropriate connection diagram in “DIAGRAMS” section. Set the “LOCAL REMOTE” switch to “REMOTE” for the LN-7 and LN-8 with a K857 remote voltage control cable attached; “LOCAL” for LN-7 with no remote voltage control.

c.Set the “VOLTMETER” switch to either “+” or “-” as required by the electrode being used.

d.Set the “RANGE” switch to the “WIRE WELDING CV” position.

e.Set the “OUTPUT CONTROL” switch to the “OUT- PUT REMOTELLY CONTROLLED” position.

f.Set the “IDLE” switch to the “HIGH” position.

STICK AND WIRE MODEL CONNECTION TO LN-25

The LN-25 with or without an external contactor may be used with the Commander 400 Stick and Wire model. See the appropriate connection diagram in “DIAGRAMS” sec- tion. NOTE: The LN-25 (K431) Remote Control Module and (K432) Remote Cable are not recommended for use with the Commander 400 S&W.

a.Shut the welder off.

b.For electrode Positive, connect the electrode cable from the LN-25 to the “+” terminal of the welder and work cable to the “- WIRE” terminal of the welder. For electrode Negative, connect the electrode cable from the LN-25 to the “ WIRE” terminal of the welder and work cable to the “+”terminal of the welder.

c.Attach the single lead from the front of the LN-25 to work using the spring clip on the end of the lead. This is a control lead to supply current to the wire feeder motor; it does not carry welding current.

d.Set the range switch to “WIRE WELDING CV”

e.Set the “OUTPUT CONTROL” switch to “WELDING TERMINALS ALWAYS ON”

f.Set the “VOLTS\AMPS” switch to “VOLTS”

g.Set the “IDLE” switch to the “AUTO” position. When not welding , the Commander 400 S&W engine will be at the low idle speed. CAUTION: ( if you are using an LN-25 without an internal contactor, the electrode will be energized when the Commander 400 Stick and Wire model is started.) If you are using an LN-25 with an internal contactor, the elec- trode is not energized until the gun trigger is closed. In either of the LN-25 wire feeders, when the gun trigger is closed, the current sensing circuit will cause the Commander 400 Stick and Wire model engine to go to the high idle speed, the wire will begin to feed and the welding process started. When welding is stopped, the engine will revert to low idle speed after approximately 15 seconds unless welding is resumed.

CAUTION

When the gun trigger is closed, the electrode is energised and the wire will begin to feed.

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STICK AND WIRE MODEL CONNECTION TO LN-23P

a.Shut the welder off.

b.Connect the LN-23P as per instructions on the appropriate connection diagram in “DIAGRAMS” section. NOTE: When connecting an LN-23P to the Commander Stick & Wire, a K350-1 adapter kit must be used. Set the “VOLTMETER” switch to either “+” or “-” as required by the electrode being used.

d.Set the “RANGE” switch to “WIRE WELDING CV”

e.Set the “OUTPUT CONTROL” switch to “WELDING TERMINALS ALWAYS ON” Set the “VOLTS/AMPS” switch to “VOLTS”

g. Set the “LOCAL REMOTE” switch to the desired setting depending upon where the power sources output is being controlled from.

h.Set the “IDLE” switch to the “AUTO” position. When not welding , the Commander 400 Stick and Wire model engine will be at the low idle speed. If you are using an LN-23P with the K350-1 adapter kit, the electrode is not energized until the gun trigger is closed. When the gun trigger is closed, the current sensing circuit will cause the Commander 400 Stick and Wire model engine to go to the high idle speed, the wire will begin to feed and the welding process can be started. When welding is stopped, the engine will revert to low idle speed after approxi- mately 15 seconds unless welding is resumed.

STICK AND WIRE MODEL CONNECTION TO NA-3

For connection diagrams and instructions for connecting an NA-3 Welding System to the Commander Stick & Wire, refer to the NA-3 Welding System instruction manual.

COMMANDER 400