Miller Electric 75 manual Lower Display, Amps

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5-6. Lower Display

7

Time

1

4

WFS

Amps

Arc Ctl

5 6

3

2

1 Lower Display

The lower display shows WFS (wire feed speed), AMPS (amperage), ARC CTL (arc control), or Time. The feeder displays only preset wire speed at idle (not welding). While welding, the average amperage is displayed. The lower display shows welding sequence time when the Time LED is illuminated.

2 WFS (Wire Feed Speed) LED

LED illuminates to indicate the preset wire feed value is being displayed and can be adjusted using the Adjust knob.

3 Amps LED

LED illuminates to indicate the average amperage is being displayed while welding and for 3 seconds after welding is terminated. The amperage must be above a minimum value of 25 amps for this function to operate.

4 Arc Ctl (Arc Control) LED

LED illuminates to indicate that inductance (MIG) or ARC [Pulse, Accu-pulse, or RMD (optional)] is being displayed and can be adjusted using the Adjust knob.

5 Time LED

LED illuminates to indicate that a time value is being displayed for a sequence function and can be adjusted using the Adjust knob.

6Lower Display Push Button

7Lower Display Push Button LED

Pressing the button illuminates the LED and selects either WFS or Arc Ctl value for changing using the Adjust knob.

To select Arc Ctl, press and hold lower display button for 2 seconds. The top display will show either INDU for a MIG program or ARC for Pulse, Accu-pulse, or RMD (optional). To exit Arc Ctl or INDU, either press the upper display push button or press and hold the lower display push button for 2 seconds.

During a welding program operation, it is possible to change WFS (wire feed speed) by using the Adjust knob regardless of the active program sequence that appears on the dis- play.

When the Arc Ctl LED is illuminated, it is possible to change values while welding by using the Adjust knob. To return to actual values on the display, exit the Arc Ctl display.

.The lower display push button has

additional functions when entering the sequence and trigger control functions (see Section 5-7).

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Contents Description OM-228 956BProcesses File Advanced Manufacturing SystemsFrom Miller to You Table of Contents Page Arc Welding Hazards Symbol UsageMarks a special safety message Electric Shock can killFlying Metal can injure eyes ARC Rays can burn eyes and skinWelding can cause fire or explosion Buildup of GAS can injure or killCalifornia Proposition 65 Warnings About Pacemakers Principal Safety StandardsEMF Information Indique un message de sécurité particulier UNE Décharge Électrique peut entraîner la mortLES Fumées ET LES GAZ peuvent être dangereux DES Particules Volantes peuvent blesser les yeux LE Soudage peut provoquer unIncendie ou une explosion DES Pièces Chaudes peuvent provoquer des brûlures graves’EMPLOI Excessif peut SUR Risque D’INCENDIE OU D’EXPLOLA Chute DE L’APPAREIL peut blesser DES Organes Mobiles peuvent provoquer des blessuresPrincipales normes de sécurité En ce qui concerne les stimulateurs cardiaques− Introduction − InstallationSpecifications Selecting a LocationConnection Diagram Rear Panel Connections And Rotating Drive Assembly Tools Needed 9/16, 5/8Pin Network Receptacle Information Installing Drive RollsInstallation RemovalInstalling PD Continuous Wire Guides Installing PD continuous wire guides with PD drive rollsRotate guide holder 180 degrees and reinstall Installing Non-PD Old Style Wire GuidesInstalling wire guides with non- PD old-style drive rolls Tools Needed 16, 1/8, 5/32Secure gun by tightening power clamp knob Installing Welding GunInstalling gun with Accu-Mate connection Installing gun without Accu- Mate connectionEnd Of Liner No Wire SlipWire Slips Power Source Upper Display Lower Display Voltage Range Feeder Display At Power UpDual Schedule Switch Options Upper Display Lower Display− Operation Operational TermsGeneral Terms Crater Power SwitchFeeder Set Up PostflowSee See Section Program Volts Time Arc AdjustFront Panel Controls SectionUpper Display Volts Arc AdjustProgram Push Button Upper DisplayLower Display Sequence Trigger Control Trigger Hold Feeder Set Up Feeder Set Up Push ButtonAdjust Control Process Set Up Push Button Make a selection, rotate the Adjust controlJog/Purge Jog/Purge Push Button Adjust Control Gun Trigger ReceptacleWelding and to preset gas pressure at the regulator Mild Steel Reset ModePulse Accu-pulseSequence Parameters − Setting Sequence ParametersSequence Parameters In a Program Disconnect power before maintaining − MaintenanceRoutine Maintenance = Check = Change ~ = Clean = ReplaceDiagnostics Indicates a voltage Sense errorIndicates a polarity error Indicates a line errorIndicates an arc error Indicates a memory CRC PCM errorRMD done message indicates TroubleshootingDisconnect power before troubleshooting Unknown− Electrical Diagram Circuit Diagram211 005-D − Parts List − -3 21 − FigFigures 9-3 Control Box PLG4 Drive Assembly, Wire Drive Assembly, Wire 9-1ItemDrive Assembly, Wire -1Item Wire Size Page Page Support ServiceYour distributor also gives For assistance in filing or settling claims, contact To locate a Distributor or Service Agency visitMiller Electric Mfg. Co Your distributor and/or equipment manufacturer’s