Miller Electric S-74D, S-74S Setting Internal DIP Switches, Setting Current Detect Override S1-1

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5-7. Setting Internal DIP Switches

Remove wrapper.

1 DIP Switch S1 On Motor Board PC1

w Setting Current Detect

Override (S1-1)

Current detect override is used to disable run-in when a welding pow- er source is used that doesn’t pro- vide current feedback through the 14-pin receptacle.

. Pins F & H are not present in 14 pin receptacle on machines that don’t provide current feed- back.

Install wrapper when finished.

P1

This illustration shows
the factory setting of S1.	1
	1

. In the DIP switch S1 illustrations, the elevated slider on each switch is shown in white. For example, the switches above are all in the Off position.

.When DIP switch positions are changed, the unit must be

turned Off and then On again in order for the new settings to be active. DIP switches are only read on power up.

Tools Needed:

1/4 in

Position Settings And Results For DIP Switch S1 On PC1

Automatic Run-In (ON)

(Factory Default)

S1-1 And S1-2

On = Run-In speed is approximately 1/2 weld wire feed speed.

Automatic Run-In (OFF)

S1-1 And S1-2

Off = Run-In speed is set using potentiometer P1 located on Motor Board PC1.

Current Detect Override (ON)

S1-1 And S1-2

On = Current detect over- ride. For welding power sources that don’t provide current feedback through the 14-pin receptacle. Run- in is inactive.

Current Detect Override (OFF)

(Factory Default)

S1-1 And S1-2

Off = Current must be detected from power sources that provide current feedback through the

14-pin receptacle to go from run-in to welding condition. Run-in is active.

803 063 / Ref. 802 944

OM-1500-10 Page 15

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Contents File MIG Gmaw OM-1500-10 207 748KProcesses DescriptionFrom Miller to You Table of Contents Standards DirectivesElectric Shock can kill Symbol UsageMarks a special safety message Arc Welding HazardsBuildup of GAS can injure or kill ARC Rays can burn eyes and skinWelding can cause fire or explosion Flying Metal can injure eyesCalifornia Proposition 65 Warnings EMF Information Principal Safety StandardsAbout Pacemakers LES Fumées ET LES GAZ peuvent être dangereux UNE Décharge Électrique peut entraîner la mortIndique un message de sécurité particulier DES Pièces Chaudes peuvent provoquer des brûlures graves LE Soudage peut provoquer unIncendie ou une explosion DES Particules Volantes peuvent blesser les yeuxDES Organes Mobiles peuvent provoquer des blessures Risque D’INCENDIE OU D’EXPLOLA Chute DE L’APPAREIL peut blesser ’EMPLOI Excessif peut SUREn ce qui concerne les stimulateurs cardiaques Principales normes de sécurité+ + Rating Label For CE Products Symbols And DefinitionsRating SpecificationsType of Input Welding Power Wire Feed Overall Site SelectionRear Panel Connections And Rotating Drive Assembly Gun Recommendation Table Wire Type, Size, And Feed Speed Capability TableMotor Speed Wire Type Wire Size Feed Speed Capability Pin Plug PLG12 InformationNonconductive Surface Installing And Threading Welding WireAutomatic Run-In OFF S1-1 And S1-2 Setting Internal DIP SwitchesSetting Current Detect Override S1-1 Current Detect Override OFF Factory Default S1-1 And S1-2Equipment DIP Switch Settings For Models With Meters Only Jog/Purge Power SwitchYou can adjust the preset volt Trigger Hold SwitchDisconnect power before maintaining Routine MaintenanceMonths Indicated Error DiagnosticsError Indications Disconnect power before troubleshooting TroubleshootingTrouble Remedy − Electrical Diagram OM-1500-10 − Parts List Part Description Quantity Control Box Diagram Part Quantity Model Marking Description 74S 74D Drive Assembly, Wire PLG5 Roll Kit Drive Roll Fraction Metric Drive Roll And Wire Guide Kits Wire Size GuideInletRoll Kit Drive Roll Support ServiceMiller Electric Mfg. Co Owner’s Record