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The Allen Bradley 20AD027A3AYYARC1 is a variable-frequency AC drive essential for various motor control applications. It operates effectively at 480 VAC and provides different horsepower ratings: 20 HP for normal duty and 15 HP for heavy duty.
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| Manufacturer | Allen Bradley |
|---|---|
| Product Type | Variable-frequency AC drive |
| Product Line | PowerFlex 70 |
| Part Number | 20AD027A3AYYARC1 |
| Weight | 32.00 lbs (14.51 kg) |
| Horsepower Ratings | 20 HP (normal duty) / 15 HP (heavy duty) |
| Rated Current | 27 A |
| Input Voltage | 480 VAC |
| Supply Phases | 3-phase power |
| Frame Designation | Frame D |
| Mounting & Enclosure | Panel-mount, IP20 (NEMA/UL Type 1) |
| Operator Interface | Full-numeric LCD keypad |
| Braking | IGBT + resistor |
| EMC Filter | Secondary (CE EMC 89/336/EEC) |
| Network Connectivity | Remote I/O via DPI module |
| Control Strategy | Enhanced control algorithm |
| Safe-Off Feature | None |
| Feedback Interface | 5 V / 12 V encoder inputs |
The 20AD027A3AYYARC1 from the PowerFlex 70 series by Allen Bradley serves as a variable-frequency AC drive, utilizing 480 VAC input voltage. This model is versatile in its performance, supporting nominal horsepower ratings of 20 HP under normal duty and up to 15 HP for heavy-duty applications. The current capacity is rated at 27 A, offering reliable power handling capabilities for various tasks.
Designed for 3-phase electrical systems, the drive comes in a Frame D enclosure for panel mounting and adheres to an IP20 (NEMA/UL Type 1) rating, indicating its suitability for environments where it will not be exposed to moisture or dust. The interface for operators features a full-numeric LCD keypad, facilitating straightforward interaction for configuration and monitoring.
In rate of braking, the unit employs an integrated IGBT combined with a braking resistor, which enhances its capabilities during motor deceleration. It is further enhanced with a secondary EMC filter that complies with CE EMC 89/336/EEC regulations. For networking, the drive includes remote I/O capability via a DPI module, allowing for seamless integration into broader communication systems. Additionally, the control strategy utilizes an enhanced algorithm to optimize performance.
Although this model does not incorporate a safe-off feature, it is equipped with a feedback interface that supports 5 V and 12 V encoder inputs, enabling connectivity with various encoder systems for precise motor control.