Return to Section TOC
Return to Section TOC
Return to Section TOC
Return to Section TOC
Return to Master TOC
Return to Master TOC
Return to Master TOC
Return to Master TOC
| THEORY OF OPERATION | ||||||||
|
|
| |||||||
|
| FIGURE E.5 – OUTPUT RECTIFIER AND CHOKE |
| ||||||
|
|
| Main Switch Board |
|
|
| To Control | ||
|
|
|
|
|
| Board |
| ||
|
|
|
|
|
|
|
| Feedback | Current |
| Input |
|
|
|
|
|
|
| Positive |
Input switch |
|
| Primary |
|
|
|
| Output | |
Rectifier |
|
|
|
|
|
| Terminal | ||
|
| Current |
|
|
|
| |||
|
|
|
| Sensor |
|
|
|
|
|
|
| Reconnect |
|
|
|
|
| Choke | Negative |
|
|
|
|
|
|
|
| Output | |
|
| Switch |
|
|
|
|
|
| Terminal |
|
|
|
| Primary |
|
|
| Sense | |
|
|
|
| Current |
|
|
|
|
|
|
|
|
| Sensor |
|
|
|
|
|
|
| Fan | ControlFan |
|
|
| IGBTDriveSignal | VoltageOutput | |
24VAC |
| 115VAC Fan Supply | Primary Current Feedback | ||||||
|
|
| Input Relay Control |
|
|
|
| ||
|
|
|
|
|
|
|
| ||
Auxiliary |
|
| Soft Start Control |
|
|
|
| ||
115VAC, 42VAC Transformer |
|
| V/F Capacitor Feedback (2) |
|
|
|
| ||
|
|
|
|
|
|
|
| ||
|
| Machine Control Supply |
|
|
|
|
| ||
|
| +15VDC, |
|
|
|
|
| ||
|
| Power |
|
|
|
|
|
|
|
28VAC |
| Board SPI Supply +15VDC +5VDC |
|
| Control Board |
| |||
40VDC |
|
|
|
|
|
|
| ||
14 Pin |
| RS232 Supply +5VDC |
|
|
|
|
| ||
|
|
|
|
|
|
|
| RS232 | |
Amphenol |
|
|
|
|
|
|
|
| |
|
|
|
| SPI Communications | & +15VDC, +5VDC Supply | ||||
|
| Remote Control & Trigger Remote |
| Mode | Advanced | ||||
|
|
| Panel | Display | Process | ||||
|
|
|
| Board |
| Panel | |||
|
|
|
|
| (Not used if APP | Panel | |||
|
|
|
|
|
| is in place) |
| ||
6 Pin |
|
|
| 12 |
|
|
|
|
|
|
|
| VDC |
|
|
|
|
| |
Amphenol |
|
|
|
|
|
|
|
| |
|
|
| Output | Weld | Optional Solenoid |
|
| ||
|
|
| Control | Terminals |
|
| |||
|
| Output |
|
|
|
|
| ||
|
|
|
|
|
|
|
|
| |
|
| Potentiometer |
|
|
|
|
|
| |
OUTPUT RECTIFIER AND CHOKE
The output rectifier receives the AC output from the main transformer secondary and rectifies it to a DC voltage level. Since the output choke is in series with the negative leg of the output rectifier and also in series with the welding load, a filtered DC output is applied to the machine’s output terminals.
NOTE: Unshaded areas of Block Logic Diagram are the subject of discussion.
