Miller Electric ProHeat 35 System Operating Characteristics, Power Source Output Characteristics

Page 43

6-9. System Operating Characteristics

The power source delivers a high-frequency alternating current output that energizes the coil creating the magnetic field used to heat the workpiece. The power source output characteristics are a function of the configuration, type and number of coils used as shown in the following table:

Table 6-1. Power Source Output Characteristics

Output Type

Maximum Amperage

Maximum Voltage

Frequency Range

 

 

 

 

 

250 A per output for 15 minutes.

 

 

 

After 15 minutes, power steps

 

 

Air Cooled Single and Dual

down to limit current to 150 am-

700 V

5 − 25.7 kHz

peres per output for continuous

 

 

 

operation.

 

 

 

 

 

 

 

See Note 1

700 V

25.7 − 30 kHz

 

 

 

 

Single Liquid Cooled

350 A

700 V

5 − 20 kHz

 

 

 

See Note 2

700 V

20 − 30 kHz

 

 

 

 

 

Dual Liquid Cooled

350 A per output/700 A total

700 V

5 − 20 kHz

 

 

 

See Note 2

700 V

20 − 30 kHz

 

 

 

 

 

 

300

 

 

 

 

 

 

 

Air Cooled Output

 

 

 

250

 

 

 

 

Per Output

200

 

 

 

 

 

 

 

 

 

Amperage

150

 

 

 

 

100

 

 

 

 

Max

 

 

 

 

 

 

 

 

 

 

50

 

 

 

 

 

0

5

 

25.7

30

 

 

Frequency (KHz)

 

 

 

 

 

.Note 1: In the frequency range

of 25.7 to 30 KHz, the maxi- mum output amperage de- creases linearly from 250 down to 175 amperes per output. Re- gardless of frequency, after 15 minutes the maximum output is reduced to 150 amperes per output.

 

400

 

Liquid Cooled Output

 

 

 

 

 

 

 

 

350

 

 

 

 

Output

300

 

 

 

 

250

 

 

 

 

Per

 

 

 

 

 

Max Amperage

200

 

 

 

 

150

 

 

 

 

100

 

 

 

 

 

 

 

 

 

 

50

 

 

 

 

 

0

5

 

20

30

 

 

Frequency (KHz)

 

 

 

 

 

.Note 2: In the frequency range

of 20 to 30 KHz, the maximum output decreases linearly from 350 down to 175 amperes per output.

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Contents Description OM-222 166K 2007−11 ProcessesFile Induction Heating From Miller to You Table of Contents EMF Information − MaintenanceRoutine Maintenance Blowing Out Inside Of Unit Limit Conditions Limit Condition Codes Fault ConditionsStandards DirectivesDecstat1/07 Page Fumes and Gases can be hazardous Symbol UsageInduction Heating Hazards Electric Shock can killCalifornia Proposition 65 Warnings About Implanted Medical Devices Principal Safety Standards EMF InformationLES Fumées ET LES GAZ peuvent être dangereux Signification des symboles− Consignes DE Sécurité − Lire Avant Utilisation UNE Décharge Électrique peut entraîner la mortDES Organes Mobiles peuvent provoquer des blessures Risque D’INCENDIE OU D’EXPLOLE Chauffage PAR Induction peut provoquer des brûlures LA Chute DE L’APPAREIL peut blesserPrincipales normes de sécurité Information EMF Proposition californienne 65 AvertissementsEn ce qui concerne les implants médicaux − Definitions Kill Shown by the symbolsPower before working on Are possible hazards asWeee Label For Products Sold Within The EU Rating Label For CE ProductsI1max − InstallationSymbols And Definitions SpecificationsMovement Location And Airflow Do not move or operate unit where it could tipSelecting a Location TippingMin Grounding Conductor Size In AWG Electrical Service GuidePhase Input Voltage 50 Hz ThreeGND/PE Earth Ground Connecting 3-Phase Input Power For 460/575 Volt ModelsWelding Power Source Input Power Connections Disconnect Device Input Power ConnectionsConnecting 3-Phase Input Power For 400/460 Volt Models Power Source Output Connections Remote 14 Socket Information Remote 14 Receptacle RC14 Information and ConnectionsSocket Socket Information Unused Temperature Recorder Socket InformationSignal Common Socket No Socket InformationWorkpiece Use handle to place magnet on the workpiece Secondary Insulation ProtectionReceptacles Plug Handle MagnetLocating Thermocouples Volt AC Duplex Receptacle And Supplementary ProtectorOther end is fitted with a 2-pin type K connector Attaching Welded Thermocouples Do not weld thermocouples while connected to power sourcePlacing Temperature Probe Using Contact ThermocouplesControls − Components and ControlsSystem Description − Setup and OperationSafety Equipment Power Source/System SetupOM-222 166 Programming Temperature-Based ControlMode....... Preheat Control TC Temperature Soak Time Decrease button to change the value to the desired settingPwht Post-Weld Heat Treat Bake-OutCustom Program Soak Parameters600 Custom ProgramEnd Type.......StepNumber OM-222 166 Ramp Temperature 600 Ramp Rate 600 /HrEnd Function SoakSoak Function NumberTypical 5-Segment Custom Program Manual ControlSoak at 1250 degrees F for a period Preheat, Bake-Out And Pwht Run Status Screen Temperature Based ControlRun Status TC5 Target Temp −−−− TC6 Countdown.. −−−−−−Cooler cannot be turned off while output is on Power TC5 Current TC6 Voltage Frequency KHzParameters CoolerReal-Time Operation Must be running to enter Hold modeProgram run is initiated, the Run Button. a change of program parameters Liquid Cooled Output System Operating CharacteristicsPower Source Output Characteristics Air Cooled OutputBefore maintaining − MaintenanceRoutine Maintenance Disconnect powerServicing Hazards − Safety Precautions for ServicingCalifornia Proposition 65 Warnings Operator Interface Indicators − Diagnostics & TroubleshootingLimit Condition Additional Information Limit ConditionsLimit Condition Codes Run StatusFault Condition Codes Fault ConditionsFault Condition Additional Information Off Cable1 LQD DIAG1 OutI1 Cable2 LQD OutI2 ClntFR 0.75 GPM System Diagnostic ScreensClrSts Flowing VBus Therm1Therm2 Therm3Removing Wrapper and Measuring Input Capacitor Voltage Turn Off welding power source, and disconnect input powerTools Needed 16, 3/8 Blowing Out Inside Of Unit Material Thickness Reference ChartCircuit Diagram − Electrical Diagram218 057-G See Figure 11-313 11-2 − Parts ListFront 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 Your distributor also gives ServiceSupport Your distributor and/or equipment manufacturer’s To locate a Distributor or Service Agency visitMiller Electric Mfg. Co For assistance in filing or settling claims, contact
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