SC-124 | Miller Electric TM-353E guide

SC-124 314

Figure 9-4. Circuit Diagram For Syncrowave 250 Effective With Serial No. JJ503984 Thru JK572897

Syncrowave 250

TM-353 Page 45

Image 49

Miller Electric TM-353E manual SC-124

Contents

SyncrowaveR Table of Contents Declaration of Conformity For European Community CE Products Page Symbol Usage Safety Precautions for ServicingMarks a special safety message Servicing Hazards About Pacemakers EMF Information Definitions + + + Rating Label For CE Products ISO/IEC Some symbols are found only on CE products Symbols And Definitions Specifications InstallationVolt-Ampere Curves 220 230 260 380 415 460 60% Duty Cycle At 200 Amperes Duty Cycle And OverheatingOverheating Selecting a Location Dimensions And WeightsMovement Location And Airflow Tipping Be careful when placing or moving unit over uneven surfacesWeld Output Terminals And Selecting Cable Sizes ARC Welding can cause Electromagnetic Interference Remote 14 Receptacle Turn Off power before connecting to receptacleVolts AC Duplex Receptacle And Shielding Gas Connections Socket All values calculated at 60% duty cycle Electrical Service Guide Check label inside your unit- only one label is on unit Placing Jumper Links And Connecting Input Power Controls Operation Meters Output Selector Switch Spot Time Controls Crater Time ControlsApplication AC Balance Control Setting Output WaveformsBalance Control AC Gtaw Output Contactor Control Switch Amperage Adjustment Controls Postflow Time Control Arc ControlsFor AC And DC Smaw Welding Preflow Time Control Optional High Frequency Controls SCR Theory of Operation HD1 Troubleshooting Table Troubleshooting Necessary parts Dition of contacts. Replace CR5 if necessary Contacts. Replace CR2 if necessary Troubleshooting Circuit Diagram For Welding Power Source HD1 location See -1 forV24 D, E Gnd Waveforms For Section AC Output, 100 Amperes, 24 Volts AC Re- sistive Load Control Board PC1 Testing Information Use With Section Reference for gate pulse to SCR4 RC54 Not used Control Board PC1 Test Point Values Receptacle Pin Value Remote Board PC2 Testing Information Use With Section RC3 Meter Calibration Input Voltage Labels And Connections Routine Maintenance MaintenanceMonths Circuit Breaker CB1 Turn Off power before adjusting spark gaps Adjusting Spark GapsFuses F1 And F2 Sources Of HF Radiation From Incorrect Installation Welding Processes Using HFHigh Frequency HF Correct Installation Model Serial Or Style Number Circuit Diagram Wiring Diagram Electrical Diagrams SC-114 SC-120 SC-121 SC-124 SC-124 785-B SC-132 697-A SC-137 SC-135 SC-142 SC-148 SC-154 649-C SC-178 SC-179 303-A SC-181 109-E SC-188 161-A Syncrowave TM-353 TM-353 SD-188 162-A TM-353 SD-187 644 1 TM-353 SD-187 644 2 SA-121 SA-044 725-C TM-353 Description Main Assembly Parts List PLG51 114 BASE, Prior to KE727074 170 Panel, Front w/Components Panel, Front w/ Components Rectifier, Si Diode -1 Item Panel, Mtg Components -1 Item Control Panel, Lower Front 126 Capacitor ASSEMBLY, Eff w/JK537589 thru JK690986 C14 124 COIL, HF coupling Eff w/JK572898 thru KF959378 174 Optional Equipment Page Miller