Miller Electric ProHeat 35 manual Programming, Temperature-Based Control, Preheat

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To reset the system back to factory default settings, turn off the power source, and wait until the display goes blank. Turn on the power source. When

the display lights, press and hold the Increase

and Decrease buttons. A message will display Press Program to reset factory

defaults. Release the Increase

and Decrease

 

buttons, and press the Program

button.

 

6-4. Programming

Programming allows the operator to setup a program for a particular heating process. The selections available are either Temperature control or Manual control.

6-4-1. Temperature-Based Control

Temperature-based control operates the system and controls the heating process based on temperature feedback from thermocouple inputs. Ther- mocouples must be used for this mode of operation or the system will not operate. Within the temperature-based mode there are four different processes available as follows: Preheat, Bakeout, PWHT (Post-Weld Heat Treat), and Custom Program.

Press the Program button to access the programming mode. Use the cursor button to move the cursor to the desired temperature-based process, then press the Program button again to select the process.

6-4-1-1. Preheat

The preheat process is a simple method of heating material to a desired temperature and holding that temperature for a specific period of time. When this process is selected, the following screen will appear on the LCD display:

Preheat Screen

Mode.......: Preheat

Control TC.: 1

Temperature: 400

Soak Time..: 01:00:00

The default position of the cursor is next to Control TC. Press the Increase

or Decrease button to select the number of control

thermocouples to be used for the program. Selections are as follows: 1, 1,2, 1,2,3, or 1,2,3,4. TC1 MUST always be a control thermocouple. TC2 thru TC4 can be used for controlling or monitoring. When a thermocouple is selected as control, the LED adjacent to the seven-segment display illuminates.

Use the Cursor

button to move the cursor to the desired selection (Temperature or Soak Time), and press the Increase

or

Decrease button to change the value to the desired setting.

.The minimum and maximum temperature settings for preheat are 0 and 10005 F (−18 and 5385 C). The minimum and maximum soak times are

0 and 1000 hours. When the system is utilizing air-cooled blankets, the maximum temperature setting is 4005 F (2045 C). If the program setting is above 4005 F (2045 C), the following screen will appear on the LCD display when the Run button is pressed:

Maximum Temperature Message Screen

Cannot enter Run mode

Programmed temperature settings

exceed air cooled limits

(400 _F, 204 _C)

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Contents File Induction Heating OM-222 166K 2007−11 ProcessesDescription From Miller to You Table of Contents − Maintenance Routine Maintenance Blowing Out Inside Of UnitLimit Conditions Limit Condition Codes Fault Conditions EMF InformationDecstat1/07 DirectivesStandards Page Symbol Usage Induction Heating HazardsElectric Shock can kill Fumes and Gases can be hazardousCalifornia Proposition 65 Warnings Principal Safety Standards EMF Information About Implanted Medical DevicesSignification des symboles − Consignes DE Sécurité − Lire Avant UtilisationUNE Décharge Électrique peut entraîner la mort LES Fumées ET LES GAZ peuvent être dangereuxRisque D’INCENDIE OU D’EXPLO LE Chauffage PAR Induction peut provoquer des brûluresLA Chute DE L’APPAREIL peut blesser DES Organes Mobiles peuvent provoquer des blessuresEn ce qui concerne les implants médicaux Proposition californienne 65 AvertissementsPrincipales normes de sécurité Information EMF − Definitions Shown by the symbols Power before working onAre possible hazards as KillRating Label For CE Products Weee Label For Products Sold Within The EU− Installation Symbols And DefinitionsSpecifications I1maxDo not move or operate unit where it could tip Selecting a LocationTipping Movement Location And AirflowElectrical Service Guide Phase Input Voltage50 Hz Three Min Grounding Conductor Size In AWGConnecting 3-Phase Input Power For 460/575 Volt Models Welding Power Source Input Power ConnectionsDisconnect Device Input Power Connections GND/PE Earth GroundConnecting 3-Phase Input Power For 400/460 Volt Models Power Source Output Connections Socket Socket Information Remote 14 Receptacle RC14 Information and ConnectionsRemote 14 Socket Information Temperature Recorder Socket Information Signal CommonSocket No Socket Information UnusedSecondary Insulation Protection Receptacles PlugHandle Magnet Workpiece Use handle to place magnet on the workpieceVolt AC Duplex Receptacle And Supplementary Protector Locating ThermocouplesOther end is fitted with a 2-pin type K connector Do not weld thermocouples while connected to power source Attaching Welded ThermocouplesUsing Contact Thermocouples Placing Temperature Probe− Components and Controls Controls− Setup and Operation Safety EquipmentPower Source/System Setup System DescriptionOM-222 166 Temperature-Based Control Mode....... Preheat Control TC Temperature Soak TimeDecrease button to change the value to the desired setting ProgrammingBake-Out Pwht Post-Weld Heat TreatSoak Parameters Custom ProgramCustom Program EndType.......Step 600Ramp Temperature 600 Ramp Rate 600 /Hr Number OM-222 166Soak Soak FunctionNumber End FunctionSoak at 1250 degrees F for a period Manual ControlTypical 5-Segment Custom Program Temperature Based Control Run StatusTC5 Target Temp −−−− TC6 Countdown.. −−−−−− Preheat, Bake-Out And Pwht Run Status ScreenPower TC5 Current TC6 Voltage Frequency KHz ParametersCooler Cooler cannot be turned off while output is onProgram run is initiated, the Run Must be running to enter Hold modeReal-Time Operation Button. a change of program parameters System Operating Characteristics Power Source Output CharacteristicsAir Cooled Output Liquid Cooled Output− Maintenance Routine MaintenanceDisconnect power Before maintaining− Safety Precautions for Servicing Servicing HazardsCalifornia Proposition 65 Warnings − Diagnostics & Troubleshooting Operator Interface IndicatorsLimit Conditions Limit Condition CodesRun Status Limit Condition Additional InformationFault Condition Additional Information Fault ConditionsFault Condition Codes ClrSts Flowing System Diagnostic ScreensOff Cable1 LQD DIAG1 OutI1 Cable2 LQD OutI2 ClntFR 0.75 GPM Therm1 Therm2Therm3 VBusTools Needed 16, 3/8 Turn Off welding power source, and disconnect input powerRemoving Wrapper and Measuring Input Capacitor Voltage Material Thickness Reference Chart Blowing Out Inside Of Unit− Electrical Diagram Circuit Diagram218 057-G − Parts List See Figure 11-313 11-2Front Panel Rear Panel Base w/Components Top Windtunnel Capacitor Assembly Right Windtunnel 229 Right Windtunnel 400 V Model Only 208 Left Windtunnel PLG14 10. Hermaphroditic Blank Plug Assy SOCKET/WRENCH Selection Table Standard Metric OM-222 166 Support ServiceYour distributor also gives To locate a Distributor or Service Agency visit Miller Electric Mfg. CoFor assistance in filing or settling claims, contact Your distributor and/or equipment manufacturer’s
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