Model 302A

Model 302A

3 Phase Resistance Welding Controller

Click Here to download the Model 302A manual.

FEATURES

  • 3 Phase Frequency Converter
  • 3 Phase Rectified D.C.
  • Spot Weld - Seam Weld - Rollspot Weld
  • Fully Programmable 16 Weld Schedules
  • Pulsating Heat Control
  • Programmable Forge Control
  • Intermittent Drive Motor On/Off Control
  • 5 Years Memory Retention Without Power
  • Scanner Interlock

PERFORMANCE

  • Absolute Repeatability
  • Quartz Crystal Accuracy
  • Space Age Design and Rugged Construction

SPECIFICATIONS

  • INPUT POWER: 200 VAC to 480 VAC 60 Hz
  • AC OUTPUT TO VALVES: 115 VAC 150 VA
  • Solid State Contactors Available in Ranges from 1200 Amps to 3200 Amps
  • Ignitron Firing Module to Fire Ignitrons Size A through E
  • Solid State Relay to Operate Squeeze Valve in Spot - Seam - Rollspot Mode
  • Solid State Relay to Turn On Motor or Air Brake in Seam or Rollspot Mode
  • Emergency Halt Input
  • Retraction and Two Stage Foot Switch Input
  • Opto Isolation Input/Output to Central Interlock Scanner
  • Visual Peripheral Diagnostics
  • Remote Control Box Model 325A with the following switches: Repeat, Weld, Tip Dress, Positive - Alternate - Negative Polarity, Seam - Spot - Roll, Next Weld Schedule (quick selection between two weld schedules), Program Lock Key, One of Sixteen Weld Schedule Selector Switch

TIMING FUNCTIONS

tip travel time - 00-99

precompression time - 00-99

squeeze time - 00-99

impulses - 00-99

cool time - 00-99

forge delay time - 00-99

heat time - 00-99

heat % - 00-99

heat decay time - 00-99

heat decay % - 00-99

hold time - 02-99

off time - 00-99