• Description
  • Functions
  • Features
  • Benefits

Our WOC-2 Weld Oscillator Control Systems are a compact, lightweight, weld torch manipulation control system comprised of the micro-controller based Weld Oscillator Control and a stepper motor driven Pendulum Oscillator Assembly or Linear Slide Assembly.

It provides the capacity to control Centerline Position, Oscillation width, Oscillation Velocity, and Left and Right Dwell. The system supplies the user with an easily accessible external interface for remote control functions.

The systems provide a user definable 50 sequence Programmable Logic Controller (PLC) with four 24 vdc inputs and two N.O. relay contacts. Using the PLC the user can provide external program control and simple power source interface. The RS-232 serial port is provided for off-line programming and system configuration and can also be used to remotely controlled.

The second component is the pendulum type oscillator or linear slide that are driven by a stepper motors which provides high reliability and low maintenance costs. The oscillator can be installed in-line or at 90 degrees and because of the compact configuration, is usable in confined spaces.

The WOC-2 is a microprocessor based stepper motor controller which provides a 1/10 micro stepping output to operate most stepper drive motors requiring 1.0 – 6.5 amps/phase current. The controller is designed to be used with the our torch positioning slides. It includes an operator hand pendant that provides full control of the our torch positioning slides. The operator hand pendant operates as a Modbus Master and provides all of the required communications to operate the WOC-2 oscillation slide assembly. The smart hand pendant is used to control the slide position, speed, oscillation width and Left/Right dwell times. The control also provides a user I/O interface for remote control of the WOC. There are two isolated Solid State Relay (SSR) outputs CR1 (READY) and CR2 (OSC ON). There are two Isolated inputs INP1 (OSC ON) and INP2 (INITIALIZE) can be used to remote activate the Oscillator and to reinitialize the slide.


The Weld Oscillator Control provides the necessary command signals to the stepper motor powered drive to permit the selection of the following functions from the front panel of the oscillator control box.

Run Enables pendulum oscillation
Jog Jogs the center position in a CW or CCW direction
Speed Controls the speed of the pendulum oscillation
Left Dwell Controls the dwell time on the left side of the oscillation pattern
Right Dwell Controls the dwell time on the right side of the oscillation pattern
Width Controls the width or amplitude of the weave pattern

Employing the external interface permits remote control of the oscillator functions and gives convenient, electronic access to peripheral equipment.

Jog (CW & CCW)
Control Reset
RS-485 Serial Port
Accurate positioning
Stepper motor driven
External interface capability
Compact lightweight design
Convenient flexible mounting
User definable 50 sequence PLC
External interface capability


Permits off-line programming, system configuration and remote control
Provides repeatable positioning for critical applications
Low maintenance cost
Permits remote control of oscillator and easy interface with peripheral devices
Adaptable in confined areas
Oscillator can be installed in any position
Product Specifications




  • Weld Oscillator Control
  • Pendulum Oscillator
  • HSA-2000 Series Slides
  • VSA-2000B Series Slides
Control Enclosure Dimensions 4.62"H X 2.00"W X 9.25"L (117mm X 50mm X 235mm)
Operator Pendant Dimensions 2.00"H X 3.50"W X 5.78"L (50mm X 89mm X 147mm)
Control Enclosure Weight 4.0 lbs (1.8kg)
Operator Pendant Weight 1.6 lbs (0.73kg)
Power Requirements 115 vac or 42 vac 50/60 Hz @ 200 va
Dwell Time 0.02 to 2.0 seconds (left and right)
Velocity 100 – 6700 steps/sec
Peak Motor Current / Phase 2.0 – 6.0 amps
Remote I/O Output CR1, CR2 Isolated Solid State Relay (SSR) 28VDC max @ 100 ma
Remote I/O Inputs INP1, INP2 Isolated 28 VDC input @ 10 ma.
Dimensions 3.50”H X 3.25”W X 5.75”L (90mm X 83mm X 146mm)
Weight 4.75 lbs (2.15kg)
Velocity 0.24° to 60° per second
Output Shaft Rotaional Torque 820 ounce/inches
Output Shaft Holding Torque 1657 ounce/inches
Approximate Weight Limit 15 lbs (6.8 kg) at 3” (76.2mm) from center of output shaft
HSA-2003 Dimensions 8.43”H x 11.67”W x 3.66”D (214mm x 296mm x 93mm)
HSA-2008 Dimensions 8.43”H x 16.39”W x 3.66”D (214mm x 416mm x 93mm)
HSA-2012 Dimensions 8.43”H x 21.12”W x 3.66”D (214mm x 536mm x 93mm)
HSA-2003 Max Travel 3.00" (76.2mm)
HSA-2008 Max Travel 7.50” (190.5mm)
HSA-2012 Max Travel 12.00" (304.8mm)
Velocity 0. 05” (0.13cm) – 6.00” (15.24cm) /sec
Weight Capacity 35 lbs. (15.9kg) at 6” (15.24cm) from slide face
VSA-2006B Dimensions 16.50”H x 18.70”W x 5.90”D (419mm x 475mm x 150mm)
VSA-2010B Dimensions 16.50”H x 23.68”W x 5.90”D (419mm x 601mm x 150mm)
VSA-2006B Max Travel 6.00” (152.46mm)
VSA-2010B Max Travel 9-3/4" (247.7mm)
Velocity 0.2” (0.51cm) – 1.67” (4.24cm) /sec
Weight Capacity 100 lbs. (45.4kg) @ 3” (7.62cm) from slide face
WOC-2 Product Literature

WOC-2 with Pendulum Oscillator User Manual

WOC-2 with HSA Linear Slides User Manual

WOC-2 with VSA Linear Slides User Manual

All drawings will be in a
3D Step file format


Terms and Conditions / Legal Information
© 2023 The Lincoln Electric Company
10702 Old Bammel N. Houston Road, Houston, TX 77086 USA - Phone: 713-462-2118