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THEORY OF OPERATION | ||
| FIGURE E.3 - INPUT POWER & DISTRIBUTION |
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VIDEO
RECEPTACLE
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MONITOR |
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| VGA |
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| CPU | ||||
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| SPLITTER |
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| VGA 1 | ||
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GREEN LED |
| 12 VDC |
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| 12 VDC | |
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12 VDC |
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SUPPLY |
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TERMINAL
STRIP
115/240 VAC 50/60 HERTZ
SINGLE PHASE
ON
SWITCH
GREEN LED |
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5 VDC |
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| POLHEMUS | |
5 VDC |
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SUPPLY |
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CPU
COMPUTER ASSEMBLY TO VGA SPLITTER
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| 5 VDC | FMD | |
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| CONTROL | |
WELDING |
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| UNIT | |
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STAND |
| VISUAL AND AUDIO SIGNALS |
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HELMET |
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VGA 3 + 4 AND AUDIO 2 |
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12 VDC
RELAY PC
BOARD
MIG GUN
DEVICE
Section TOC Master TOC
INPUT
INTERLOCK |
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RELAY |
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5 VDC USB |
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| SIGNAL |
| DIGITAL |
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| I/O |
| MOTOR CONTROL COMMANDS | ||
| AUDIO 1 |
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12 VDC
STICK ELECTRODE
DEVICE
MOTOR
SIGNALS
MOTOR
CONTROL
PC BOARD
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AUDIO | INTERFACE |
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MODULE |
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RECEPTACLE |
| USER INTERFACE | ||
| DIGITAL |
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| INDICATORS | ||
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| DISPLAY |
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| PC BOARD |
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INPUT POWER & DISTRIBUTION
The single phase input power
When the CPU has been energized the momentary “ON” switch is bypassed by the interlock relay. The 5VDC created by the CPU is applied, via a USB cable to the interlock relay. The independent 5VDC supply provides power to the Polhemus Interface Module, and the FMD Control Unit. The other independent 12VDC supply provides power to the VGA Splitter and via the Relay PC Board to the Motor Control Board.
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NOTE: Unshaded areas of Block Logic Diagram are the subject of discussion
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