Model 302A 3 Phase Resistance Welding Controller

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

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

• 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

• Operating Temperature: 0-50 Degrees Centigrade
• Cabinet Dimensions: 14"h x 14"w x 6"d