For DC spot welding / fusing: IS-300A
Features
- ■ Compact and 1.5 times higher output than that of the conventional model IS-120B.
- ■ Detailed weld schedules can be set.
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- Six control types
You can choose from; "Primary constant-current RMS," "Secondary constant-current RMS," "Secondary constant-power RMS," "Primary constant-current PEAK control," or "Constant-phase" to attain stable welding quality. - Different setting can be set at each welding.
Pulsation, Upslope, Downslope and Weld stop. - Power supply voltage fluctuation compensation control (effective when PULSE LIMIT is set)
The pulse limit is corrected according to the fluctuation in the power-supply voltage on the primary side. This function is valid only in the primary constant-current PEAK control mode (PLM).
- Six control types
- ■ Transformer selecting function
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Up to five transformers can be connected with IS-300A by an optional MA-650A the transformer selector.
This function contributes to the improvement in productivity. - ■ Interrupt feature
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Interrupt feature functions when a displacement amount reaches up to set level and stops current to obtain more stable fusing. For this feature, it needs to be connected with a weld checker with a built-in displacement monitor and set a displacement amount of electrodes beforehand.
- ■ Program unit MA-660A (Sold Separately)
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Employing an easily viewable color LCD. Current, voltage, or power can be monitored.
- ■ Multilingual software
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You can select the language from Japanese, English, Chinese, and Korean.
- ■ Samples
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Specifications
| Model | IS-300A-00-00 | IS-300A-00-01 | |
| Power requirements (Fixed at ex-factory) | 3-phase, 200–240 VAC ±10% (50/60 Hz) |
3-phase, 380–480 VAC ±10% (50/60 Hz) |
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| Max. output current | 300A (Peak value) | ||
| Number of schedules | 255 | ||
| Output frequency | 600Hz to 3kHz (In 100 Hz increments) | ||
| Control method | Primary constant-current RMS Secondary constant-current RMS Secondary constant-power RMS Primary constant-current PEAK (with pulse width limit funcution) Secondary constant-voltage RMS Constant-phase control |
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| Timer setting range | msec mode / cyc mode | ||
| SQUEEZE DELAY | 0000 to 9999ms/000 to 999cyc | ||
| SQUEEZE | 0000 to 9999ms/000 to 999cyc | ||
| UP SLOPE 1,2,3 | 000 to 999ms/00 to 50cyc | ||
| WELD 1,2,3 | 000 to 999ms/000 to 50cyc | ||
| DOWN SLOPE 1,2,3 | 000 to 999ms/00 to 50cyc | ||
| COOL 1,2 | 000 to 999ms/000 to 999cyc | ||
| HOLD | 00000 to 20000ms/000 to 999cyc | ||
| OFF ＊1 | 0 or 0010～9990ms/00～99cyc | ||
| Transformer turns ratio | 1.0 to 199.9 | ||
| Pulsation setting | 01 to 19 | ||
| Valve setting | 2 | ||
| Setting range (1)Constant current *2 (2)Constant power (3)Constant voltage (4)Constant phase |
(1)0.1 to 20.0kA (2)0.1 to 20.0kW | ||
| (3)0.20 to 9.99V (4)10.0 to 99.9% | |||
| Current monitor | HIGH 0.00 to 9.99kA / LOW 00.0 to 99.9kA | ||
| Power monitor | HIGH 00.00 to 99.99kW / LOW 000.0 to 999.9kW | ||
| Voltage monitor | 0.00 to 9.99V | ||
| Pulse width monitor | HIGH 10.0 to 100% | ||
| Cooling method | Air-cooled | ||
| Data communication | RS-232C (One-way communication) / RS-485 (Bidirectional communication) |
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| Operating environment | Ambient temperature | +5～+40℃ | |
| Humidity | 90% max. (no condensation) | ||
| Altitude | 1000m max. | ||
| Mass | 16.5kg | ||
*1: No repetitive operation will be performed if “0” is selected for OFF (off time).
*2: Primary current can be set up to 300 A.
Corresponding transformer
| Model | IT-512C | ITH-651C6W | ITI-875A6W |
| Rated capacity | 15.8kVA | 26.8kVA | 37.1kVA |
| Rated primary voltage | 300V | 300V/600V | |
| No-load secondary voltage | 10.7V/12.5V | 9.3V | 12.5V |
| Transformer turns ratio | 28:1/24:1 | 32:1/64:1 | 24:1/48:1 |
| Input frequency | 1kHz | ||
| Maximum welding current | 4000A | 7000A | 7000A |
| Duty cycle | 5% | 8.5% | 9% |
| Fan voltage | AC200V | DC24V | |
| Cooling method | Air cooling | Water cooling | |
| Weight | 17.5kg | 16kg | 19kg |
| Outline dimensions (mm) * | 183(W) × 403.5(D) × 184(H) | 167(W) × 362(D) × 199(H) | 168(W) × 410(D) × 199(H) |
*1:Include projections
Customer support
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Customer support