Lincoln Electric SP-250 service manual Arrow KEY Operation When Used with Spot KEY

Models: SP-250

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B-8

OPERATION

B-8

 

 

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7.MEMORY KEYS: Press memory key location number in which you want to save a procedure or from which you want to recall a procedure from memory. See SAVE Key.

FIGURE B.3 - Sample SAVE Sequence.

8.SPOT KEY: Press to turn ON the Spot Weld Timer and display the spot weld ON time. Pressing the SPOT KEY a second time returns the screen to the previous display without turning off the spot timer. Anytime the Spot weld timer is on and the display is in the Auto or Manual mode, the word SPOT will appear in the bottom left corner of the display. See Figure B.2.

ARROW KEY OPERATION WHEN USED WITH SPOT KEY:

See Table B.1.

Left arrow keys: Do not function.

Center arrow keys: Press UP ( ) arrow key to increase Spot Weld ON time from 0.20 seconds to 2.5 seconds. Press DOWN ( ) arrow key to decrease Spot ON time from 2.5 seconds to 0.20 seconds.

Right arrow keys: - Do not function.

9.STITCH KEY: Press to turn Stitch Weld timers ON and display the Stitch Weld ON and OFF times. Pressing the STITCH key a second time returns the screen to the previous display without turning off the stitch timers. Anytime the Stitch weld timers are on and the display is in the Auto or Manual mode, the abbreviation STITCH will appear in the bottom left corner of the display. See Figure B.2.

ARROW KEY OPERATION WHEN USED WITH STITCH KEY:

See Table B.1.

Left arrow keys: Do not function.

Center arrow keys: Press UP ( ) arrow key to increase Stitch time ON from 0.20 seconds to 2.50 seconds. Press the DOWN () arrow key to decrease Stitch ON time from 2.50 seconds to 0.20 seconds.

Right arrow keys: Press UP () arrow key to increase Stitch OFF time from 0.20 seconds to 2.50 seconds. Press DOWN () arrow key to decrease Stitch OFF time from 2.50 seconds to 0.20 seconds.

10.TIMERS OFF KEY: Press to turn OFF both Spot and Stitch timers. When the TIMERS OFF key is pressed the indicating letters from the bot- tom left corner of the Auto and Manual mode dis- play disappears.

The six arrow keys do not function with this key.

11. GUN SWITCH CONTROL IPM VOLTS KEY: Press to engage the gun thumb switch to control IPM or VOLTS. Pushing the gun thumb switch forward (toward the tip) increases IPM or VOLTS . Pulling gun thumb switch back decreas- es IPM or VOLTS. The underlining cursor always indicates the selection being controlled by the gun thumb switch. See Figure B.4.

If the cursor is not present, the gun thumb switch does not function. This prevents any inadvertent actuations. Each time this IPM VOLTS key is pressed, the cursor moves in the following sequence: IPM to VOLTS to no cursor. The sequence continues each time the key is pressed.

NOTE: In Auto Mode, changing IPM changes arc volt- age. This can result in a change in metal thickness setting as well.

FIGURE B.4 - Using the IPM VOLTS key.

IDEALARC SP-250

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Lincoln Electric SP-250 service manual Arrow KEY Operation When Used with Spot KEY, Left arrow keys Do not function