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B-3

OPERATION

B-3

CONTROLS AND SETTINGS

All operator controls and adjustments are located on the case front of the V250-S. Refer to Figure B.1 and corre- sponding explanations.

FIGURE B.1 — CASE FRONT CONTROLS.

4

 

8

SMAW

GTAW SMAW

THERMAL

SOFT

CRISP

HOT START

2

 

 

 

 

5

6

 

 

 

 

 

4

7

 

 

 

 

 

3

 

 

A

 

120

 

2

8

5

 

85

 

 

 

OUTPUT

 

1

9

3

 

 

 

50

 

 

170

0

10

 

 

 

 

 

 

15

 

 

230

ARC FORCE

 

REMOTE

LOCAL

 

 

5

6

 

1

 

 

 

 

 

 

 

4

7

 

 

 

 

 

 

3

 

 

 

 

250

 

 

 

 

 

 

 

2

8

6

 

 

 

 

 

 

 

 

 

 

 

1

9

 

 

 

 

 

 

0

10

 

 

 

 

 

 

 

 

 

INVERTEC ® V250-S

 

-

+

I

S

 

1

O

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7

1.Power Switch - Place the lever in the “ON” position to energize the machine. When the power is on, the fan will operate and the output will be energized in SMAW modes. GTAW mode requires remote trig- ger to energize the output.

2.Output Control - This controls the output current. Control is provided over the entire output range of the power source with 1 turn of the control knob. This control may be adjusted while under load to change power source output. When using remote control this function becomes the limit setting.

3.Local/Remote Switch - Place in the “LOCAL” posi- tion to allow output adjustment at the machine. Place in the “REMOTE” position to allow output adjustment at remote pot or amptrol. In Remote, the machine output control pot is the limit setting for remote control.

4.Mode Switch

GTAW Optimized for touch start use. Triggering at amphenol is required using an Arc Start Switch, Amptrol or similar means. Short circuit current is limited to approximately 25 amps to aid in touch starting.

CCSoft Best for EXX18 thru EXX28 stick elec- trodes. Output energized when machine is on.

CCCrisp Use this mode for stick welding with EXX10 thru EXX14 electrodes. Output energized when machine is on.

5.Hot Start - Controls the amount of starting energy in SMAW.

INVERTEC V250-S

Page 15
Image 15
Lincoln Electric V250-S service manual Controls and Settings, Figure B.1 Case Front Controls