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| THEORY OF OPERATION |
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| FIGURE E.2 – INPUT VOLTAGE AND PRECHARGE |
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| IGBT DRIVE | MAIN |
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| FROM | CT CURRENT |
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POWER WAVE 455/R |
| CONTROL | TO CONTROL | TRANSFORMER |
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| BOARD | BOARD |
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| OUTPUT DIODES |
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| ELECTRODE | |||||
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| D1 |
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| TERMINAL |
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| CAP. V/F |
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| FEEDBACK | LEFT |
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| CR1 |
| INPUT |
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| SWITCH |
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| BOARD |
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| +20 VDC FROM |
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| RECTIFIER |
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| POWER BOARD |
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| CURRENT | STT | |
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| RECONNECT | IGBT DRIVE |
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| ELECTRODE | ||
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| STT CHOPPER | TRANSDUCER | ||||||
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| TERMINAL | ||||||
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| SWITCH | CT CURRENT |
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| BOARD |
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| CONTROL |
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| TO CONTROL |
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| BOARD |
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| + | |
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| BOARD |
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| SW1 |
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| RIGHT |
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| STT |
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| CAP. V/F | SWITCH |
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| DRIVE | CURRENT |
| WORK | ||
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| FEEDBACK |
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| TRANSDUCER |
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| BOARD |
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| OUTPUT TERMINAL | ||||||
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| CHOKE | |
| INPUT |
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| 67A |
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| S1 |
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| BOARD |
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| VOLT |
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| C |
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| 67B |
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| U |
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| SENSE |
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| S6 | VOLTAGE SENSE |
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| R | S |
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| CONTACTOR AND PRECHARGE | BOARD | OUTPUT |
| DEVICE NET | TO | TO | R | T |
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| CONTROL SIGNALS FROM |
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| E | T |
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| CONTROL BOARD |
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| S5 | LEFT | RIGHT | N |
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| VOLTAGE SENSE SELECT |
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| GATEWAY | CONNECTION | S.B. | S.B. | T | F |
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| 2 | FROM CONTROL |
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| ARC LINK | BOARD | TO |
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| F | B |
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| ROBOT |
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| 4 | BOARD |
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| FEED | 40 VDC |
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| B |
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| V |
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AUX | A |
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| 40 VDC | HEAD |
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| IGBT |
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| TO FAN RELAY |
RECONNECT |
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C |
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| 115 VAC |
| BOARD |
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| DRIVES |
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| CONTACTOR AND | ||||
| RELAY |
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| FAN |
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| ARC LINK |
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| PRECHARGE | |||
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| 115 VAC |
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| CONTROL SIGNALS |
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| +5V RS232 |
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| THERMOSTATS |
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| CONTROL |
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| 52 VAC |
| 65 VDC |
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| CONNECTION |
| +5 V ARC LINK |
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| S6 |
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| BOARD |
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| BUS BOARD | DC | TO WIRE | POWER | +5V SPI |
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| DRIVE |
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| T1 |
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| RECTIFIER | BUS |
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| BOARD | +15V SPI |
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| SENSE |
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| BOARD | 40 VDC |
| +5 V |
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| S3 | |
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| +15 V |
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| RS232 |
| 230 VAC |
| WATER |
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| 40 VDC |
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| LEFT S.B. | |||||
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| COOLER |
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| CAP. V/F |
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| 40 VDC |
| +20 VDC |
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| RIGHT S.B. | ||
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| CAP. V/F | ||||
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| TO |
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| ARC LINK |
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| 115 VAC |
| CHOPPER |
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| RECP. |
| S1 | WIRE |
| BOARD |
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| 115 VAC |
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| LEFT CT | RIGHT CT |
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| FEEDER |
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| T2 |
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| CURRENT | CURRENT |
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| RECP. |
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| FB | FB | STATUS | THERMAL |
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| LIGHT | LIGHT |
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GENERAL DESCRIPTION
Return
Return
The Power Wave 455/R power source is designed to be a part of a modular,
Tension Transfer) for a variety of materials such as mild steel, stainless steel, cored wires and aluminum. The STT process supports mild steel and stainless steel welding.
The Power Wave 455/R has an output rating of either 450 amps at 38 volts or 400 amps at 36 volts. The two output ratings are dependent upon input voltage and frequency. Both have a duty cycle of 100%. The STT process is rated at currents up to 325 amps at a 100% duty cycle.
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NOTE: Unshaded areas of Block Logic Diagram are the subject of discussion.
