Model 301B

3 Phase Frequency Converter and 3 Phase Rectified D.C. Resistance Welding Controller

FEATURES

• Unmatched Versatility
• Programming in English. "No Codes Required"
• 6 Months Memory Retention Without Power
• Electronic Air Pressure Control
• Programmable Slope Synthesizer
• 3 Phase Line Voltage Compensator
• 140 Weld Schedules Data Retention
• Multiple Foot Switch Pedal Operation
• Program Integrity Secureable by a Lock and Key Control
• Data Storage on PC (optional)
• Serial Interface to Other Computers (optional)
• Interface With Automation Equipment (optional)
• Intertron Scanner (optional)
• Motor Control with Wheel Encoder Feedback (optional)
• 9 Channel Data Acquisition System (Model 304A, optional)

SPECIFICATIONS

Welder controller cabinet with locking key, and containing the following:
• 1 Monolithic front panel with a display of 68 digits and touch keypads with visual tactile feedback.
• 1 Display front panel printed circuit board.
• 1 Processor printed circuit board, containing the microprocessor, associated memory with battery backup, parallel and serial I/O ports, variable baud rate, cassette interface circuits, visual INPUT/OUTPUT diagnostics, computer memory diagnostics, independent 3 phase line voltage monitoring and compensation, and the voltage generators for programming WELD and FORGE pressure.
• 1 Peripheral interface printed circuit board, containing the internal power supplies, the solid state relays for valve solenoid operation, the INTERTRON transceiver, and the SCR/IGNITRON pulse amplifiers.

 

Input voltage and power consumption:	220/240/440/480 VAC 60 HZ - 15 watts
Operating temperature:	0 to 60 degrees Centigrade
Weight:	24 lbs.
Physical Dimensions:	12 1/4"h x 20 1/2"w x 6 1/2"d

 

Pictures of the 301B Installed on a Machine:

Remote Control Panel  (Mounted beside the Welder Face)

The Complete Setup                          [Larger Version]

STANDARD FEATURES:

 
• Control Features:
• Weld / No Weld, Repeat / One Shot, Tip / Wheel Dress, Foot Switch Lock, Motor ON and 110VAC/30VA Outputs for controlling up to seven valve solenoids and relays
• Water Saver Timer. Shuts itself off when head is raised.
• Tip Arc Relay Control
• Two Stage Foot Switch Inputs, direct connection up to four foot pedals
• Interrupt input to halt control and sound internal alarm if detects overheating, no water flow, or lack of adequate air pressure. (Detection devices not included.)
• Line Voltage Compensator manual override
• Programmable Slope in all three modes for generating complex heat wave forms
• Weld schedule program under key lock. (Operator can still vary % heat ±5% of previous heat setting.)
• Internal switch (jumper) selects Frequency Converter of Full Wave Rectified D.C. operation.
• Thumb wheel switch for instantaneous selection of 140 preprogrammed weld schedules, with all variables parameters as viewed on the front panel
• Weld & Forge psi display: 00-99
• Operating Modes: SPOT - SEAM - ROLL (intermittent drive)
• Fixed timing functions, Tip travel 20 cycles, Precompression 4 cycles
• Variable timing functions:
 

SQUEEZE	0-99
PREHEAT	Imp. - Cool - Heat - Heat % - Heat decay - Heat decay %	0-99
WELD	Imp. - Cool - Heat - Heat % - Heat decay - Heat decay %	0-99
POST HEAT	Imp. - Cool - Heat - Heat % - Heat decay - Heat decay %	0-99
QUENCH	0-99
TEMPER	Imp. - Cool - Heat - Heat % - Heat decay - Heat decay %	0-99
HOLD	2-99
OFF	0-99
FORGE:	Hi - Low - Var. Delay Start 000.0-999.9

• Standard components supplied with each system:
• Welder controller cabinet
• Power distribution transformer
• Ignitron firing modules, or SCR firing modules
 

 

OPTIONAL FEATURES AND COMPONENTS:

 

• RS 232 Interface for downloading, storing, and editing weld schedules on a PC.
• Interlock Scanner. It interlocks the operation of up to ten controllers per scanner for sequential welding.
• Interface for control from a central computer.
• SCR firing package
• IGNITRON firing package
• Motor control with wheel surface speed encoder feedback
• Model 304A Data Acquisition System
• Model 350A Electronic Air Pressure Controller



Model 304 Monitor (optional)


 

Model 350A Electronic Air Pressure Controller (optional) Electronic Air Pressure Controller with dual outputs, for supplying pilot air pressure to WELD and FORGE air pressure regulators. Specifications: Operating range: 05 psi to 90 psi Resolution and Accuracy: ±0.5 psi Input air pressure: 120 psi typical Physical dimensions: 10" x 3" x 10" (H x W x D) Weight: 14 lbs.

Intertron Products:
Single Phase: 100 | PC100 | 105 | 108 | 109A | IN200/300 | 375 | 1000
Three Phase: 301B | 302A | 302C | 375
Other Controls | Welding Supplies | Return to T. J. Snow

Contact Information:	6207 Jim Snow Way P. O. Box 22847 Chattanooga, TN 37422	(423) 894-6234 1-800-NOW-SNOW FAX (423) 892-3889 ORDER FAX (423) 490-2417
	welders@tjsnow.com