Tweco VS 212 PortaFeed - Manual (Page 20)

PORTAFEED VS 212
INTRODUCTION 2-2 Manual No. 0-4994
2.04 General
The PORTAFEED ® VS 212 is a portable, solid state
controlled, voltage sensing wire feeder that operates
on arc voltage and can be used with most constant
voltage (CV) and constant current (CC) DC-type power
sources. The only connection required between the
power source and the wire feeder is the welding cable.
The unique design of this wire feeder allows operation
in a constant wire feed speed mode when used with
CV power sources, and in a voltage sensing wire feed
speed mode (wire feed speed varies with respect to
arc voltage) when used with CC power sources.
The PORTAFEED VS 212’s steel-reinforced, flame-
retardant case totally encloses the solid state control
circuitry, welding wire, and wire drive system. A
hinged, latched door allows quick and easy access to
the contactor, welding wire, and feedhead assembly
that features quick change, gear-driven drive rolls.
PORTAFEED VS 212 comes with:
• Robust injection molded case
• Changeable MIG gun cartridge system
• Digital display (model W3512002 only)
• Heavy duty contactor
• Internal parts storage
• Power cable and drive rolls
• Gas valve solenoid
The PORTAFEED VS 212, includes the following
features:
1. An on/off rocker switch
2. A wire feed speed control knob
3. A welding gun holder
4. A carrying handle
5. A contactor
6. A gas valve
7. A CC/CV mode switch
8. An input circuit breaker for complete system
protection
9. An electronic controlled protection circuitry to
protect against an undervoltage, an overvoltage,
a voltage spike, a shorted or locked motor, a
shorted contactor coil, and a shorted gas valve
10. An electronic controlled dynamic brake
11. An electronic controlled current limit to motor
12. An electronic controlled start circuit for improved
arc starting
13. A low voltage gun trigger circuit for operator safety
14. A drive roll kit
15. In addition to these standard features,
specification number W3512002 also includes a
digital display for wire feed speed/amps and arc
voltage, with arc time and memory hold.
16. Trigger Hold Switch
The PORTAFEED VS 212 has been designed to comply
with IEC 60974-1 (CE), CSA NRTL/C, and NEMA EW
3 standards.