Lincoln Electric SP-255 manual 6OPERATION, Timer Keys, Typical Memory Number KEY Press Sequence

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B-6OPERATION

The six arrow keys perform no function during a recall.

NOTE: The presently displayed setup is lost because it is replaced by the setup recalled from memory. If you wish to save the present setup, save it to an unused memory first (see Save key), and then recall the memory required.

TYPICAL MEMORY NUMBER KEY PRESS SEQUENCE

Manual screen displayed prior to pressing Memory Number key. Memory Number key is pressed, the dis- play changes to the Auto setup that was in memory 1.

If the memory is empty (contains no setup yet), then a message indicating that (see below) will be displayed when the Memory Number key is pressed. The mes- sage will be displayed for 2.5 seconds, and then the display will change to the original display before the Memory Number key was pressed.

If the setup in memory is an Auto mode type and it requires a different wire type, wire size, or welding gas, the display will alternate messages (see below), once the Memory Number is pressed. The first mes- sage will tell you what process is required, and the second message will tell you to press the Process key once you have installed the process required into the SP-255. Once the required process has been installed, press the Process key and the setup will be recalled from memory 1 and the display will show the required process. Press Auto key or close the gun trig- ger to display the procedure stored in memory 1.

TIMER KEYS

SPOT KEY

Turns on the Spot weld timer and displays selection of the spot ON time. Pressing the Spot key a second time returns the screen to the previous display without turning off the spot timer Any time 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.

Left arrow keys — Do not function.

Center arrow keys — Increase (up arrow) or decrease (down arrow) Spot ON time in seconds (0.20 to 2.50s).

Right arrow keys — Do not function.

TYPICAL SPOT KEY PRESS SEQUENCE

Auto screen is displayed prior to pressing Spot key. Spot key is pressed, Spot On timer is activated and the display changes to Spot screen. Spot ON timer can now be adjusted using the center arrow keys. Once the timer has been set, pressing the Spot key again returns the display to the original Auto screen with the Spot timer status indicated in the bottom left corner.

IDEALARC SP-255 OCT94

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Contents Safety Depends on You Idealarc SP-255Safety California Proposition 65 WarningsElectric Shock can kill Welding Sparks can cause fire or explosion IiiPrécautions DE Sûreté Sûreté Pour Soudage a L’ArcThank You Master Table of Contents for ALL Sections Section F Section DSection E AppendixINSTALLATIONA-1 Technical Specifications Idealarc SP-255Input Power and Grounding Connections 2INSTALLATIONSafety Precautions Uncrating the SP-255INSTALLATIONA-3 GUN and Cable InstallationOutput Polarity Connection 4INSTALLATION Shielding GASOPERATIONB-1 Fumes and Gases can be dangerousWelding Capability 2OPERATIONRecommended Processes and Equipment LimitationsStart Mode Selections Process WIRE/GAS KEYOPERATIONB-3 Auto KEY Procedure Keys4OPERATION Typical Auto KEY Press SequencesOPERATIONB-5 Memory KeysTypical Memory Number KEY Press Sequence Timer Keys6OPERATION Spot KEYGUN Switch Keys OPERATIONB-78OPERATION Typical Toggle KEY Press SequenceStep Trigger Interlock Keys Using 4-STEP Trigger Interlock FunctionOPERATIONB-9 Typical Activate KEY Press SequenceProcedure for Changing Drive Roll GUN SwitchesWire Drive Roll Wire Reel LoadingTo Start the Welder Idle Roll Pressure SettingOPERATIONB-11 Feeding ElectrodeMaking AN Auto Mode Weld 12OPERATIONOPERATIONB-13 14OPERATION Wire Feed Overload ProtectionExplanation of Prompting and Error Messages Welding Thermal Overload ProtectionOPERATIONB-15 Operation ACCESSORIESC-1 2ACCESSORIES ACCESSORIESC-3 Disabling Spool GUNIdealarc SP-255 Cable Cleaning MAINTENANCED-1Safety Precautions Routine Maintenance2MAINTENANCE Liner Removal ReplacementMAINTENANCED-3 GUN Handle DisassemblyMagnum 250SP GUN Parts and Accessories Idealarc SP-255 TROUBLESHOOTINGE-1 HOW to USE Troubleshooting GuideProblems Possible Areas Symptoms Misadjustments 2TROUBLESHOOTINGTroubleshooting Guide Authorized Field Service FacilityTROUBLESHOOTINGE-3 4TROUBLESHOOTING Authorized Field Service FacilityContact your local Lincoln TROUBLESHOOTINGE-5 Function Problems6TROUBLESHOOTING Contact your local Lincoln Authorized Field Service FacilityWiring Diagrams SP-255 Wiring Diagram L9688 Dual VoltageWiring Diagrams Dimension Print Page Page Page Page How To Read Shop Drawings $700.00Precaucion Warnung Limited Warranty
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