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E-5

THEORY OF OPERATION

E-5

FIGURE E.5 - FMD CONTROL UNIT, POLHEMUS INTERFACE MODULE, WELDING STAND, HELMET,

RELAY BOARD AND WELDING DEVICES

VIDEO

RECEPTACLE

 

 

 

 

 

 

 

 

FROM

MONITOR

 

 

VGA

 

 

<

 

 

 

 

CPU

 

 

 

SPLITTER

 

 

 

 

 

 

 

 

VGA 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GREEN LED

 

12 VDC

 

 

 

 

12 VDC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12 VDC

 

 

 

 

 

 

 

 

SUPPLY

 

 

 

 

 

 

 

 

TERMINAL

STRIP

115/240 VAC 50/60 HERTZ

SINGLE PHASE

ON

SWITCH

GREEN LED

 

 

 

 

 

5 VDC

 

 

POLHEMUS

5 VDC

 

S

 

 

INTERFACE

SUPPLY

 

 

 

MODULE

 

I

 

 

 

 

G

U

 

 

 

N

 

 

 

A

S

 

 

 

L

B

 

 

 

 

 

 

 

CPU

COMPUTER ASSEMBLY TO VGA SPLITTER

 

 

5 VDC

FMD

 

 

 

CONTROL

WELDING

 

 

UNIT

 

 

 

 

STAND

 

VISUAL AND AUDIO SIGNALS

 

 

 

 

 

 

HELMET

 

 

 

 

 

 

 

 

 

VGA 3 + 4 AND AUDIO 2

 

 

12 VDC

RELAY PC

BOARD

MIG GUN

DEVICE

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INPUT

INTERLOCK

 

 

 

U

 

 

 

 

RELAY

 

 

 

S

 

 

 

 

 

 

 

 

U

B

 

PROCEDURE SELECTIONS

 

 

 

 

 

 

5 VDC USB

 

 

INTERFACE

 

 

 

 

 

 

 

S

MODULE

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B

 

 

 

 

SIGNAL

 

DIGITAL

 

 

 

 

 

 

 

 

 

 

 

 

 

I/O

 

 

MOTOR CONTROL COMMANDS

 

AUDIO 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

12 VDC

STICK ELECTRODE

DEVICE

MOTOR

SIGNALS

MOTOR

CONTROL

PC BOARD

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AUDIO

INTERFACE

 

 

MODULE

 

 

RECEPTACLE

 

USER INTERFACE

 

DIGITAL

 

 

 

CONTROLS AND

 

(USB)

 

 

 

INDICATORS

 

 

 

 

 

 

 

 

(MULTIPLE DEVICES)

 

 

 

 

 

 

 

 

 

 

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DISPLAY

LED

PC BOARD

FMD CONTROL UNIT, POLHEMUS INTERFACE MODULE, WELDING STAND, HELMET, RELAY BOARD AND WELDING DEVICES

The FMD Control Unit forwards the video and audio information it receives from the CPU to the Helmet for real time user performance feedback.

The Polhemus Interface Module processes feedback signals it receives from the Welding Stand, the Helmet and the Relay PC Board and via a USB cable connec- tion provides interactive performance information to the CPU. The Welding Devices (Mig and Stick) and the Welding Stand interact through magnetic signals.

The Relay PC Board receives user procedure selec- tions from the Interface Digital I/O Module. The Relay PC Board then activates either the Mig Gun Device or the Stick Electrode Device and interacts with the Polhemus Interface Module to provide virtual welding feedback information to the CPU. When the Stick Electrode Device is selected the Motor Control PC Board is commanded by the Interface Digital I/O Module to retract the magnetic electrode to simulate the consumption of a stick electrode.

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NOTE: Unshaded areas of Block Logic Diagram are the subject of discussion

VRTEX TM 360

Page 56
Image 56
Lincoln Electric SVM200-A service manual Display LED PC Board