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- Allen Bradley
- 20BD077A3ANNANA0
- PowerFlex 700 AC Drive
- USA
- 758.8 x 201.7 x 220 mm
- 24.49 kg
- Xiamen, China
- New & In Stock
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All our products are priced very favorably because we have our own warehouse and supply.
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Product Overview
The Allen Bradley 20BD077A3ANNANA0 PowerFlex 700 AC Drive is a high-performance Variable Frequency Drive (VFD) designed to provide precise motor speed regulation, excellent torque performance, and dependable operation for demanding industrial automation systems. As a member of the proven PowerFlex 700 series, this AC drive integrates advanced vector control technology, intelligent diagnostics, flexible configuration, and comprehensive motor protection to improve production efficiency while minimizing energy consumption and equipment wear.
Designed for 480 VAC three-phase power systems, the 20BD077A3ANNANA0 delivers a continuous output current of 77 A, supporting 60 HP (45 kW) Normal Duty and 50 HP (37 kW) Heavy Duty motor applications. The drive converts fixed-frequency AC input into adjustable voltage and frequency output, allowing smooth acceleration, accurate speed regulation, stable torque delivery, and efficient motor operation across a wide operating range. This model has been discontinued by the manufacturer but remains widely used in maintenance, retrofit, and replacement projects.
This configuration features 24 VDC/AC Vector Control I/O, sensorless vector control, a full-numeric LCD Human Interface Module (HIM), no internal communication module, no encoder feedback, no brake IGBT, no internal braking resistor, and a built-in EMC filter with common-mode choke for enhanced electromagnetic compatibility.
With dimensions of 758.8 × 201.7 × 220 mm and an approximate weight of 24.49 kg, the drive is designed for cabinet-mounted industrial installations where reliable continuous-duty performance and simplified maintenance are essential.
Typical applications include conveyor systems, pumps, compressors, fans, mixers, packaging equipment, process machinery, HVAC systems, mining equipment, water treatment facilities, and OEM automation equipment.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Allen Bradley |
| Product Series | PowerFlex 700 |
| Model | 20BD077A3ANNANA0 |
| Product Type | AC Drive / Variable Frequency Drive |
| Input Voltage | 480 VAC, Three-Phase |
| Rated Output Current | 77 A |
| Normal Duty Rating | 60 HP (45 kW) |
| Heavy Duty Rating | 50 HP (37 kW) |
| Motor Control | Sensorless Vector Control |
| Control I/O | 24 VDC/AC Vector Control |
| Human Interface Module | Full-Numeric LCD HIM |
| Communication | No Internal Communication Module |
| Encoder Feedback | Not Included |
| Brake IGBT | Not Installed |
| Internal Brake Resistor | Not Included |
| EMC Filter | Built-in EMC Filter with Common-Mode Choke |
| Protection Rating | IP20 / NEMA Type 1 |
| Cooling Method | Forced Air Cooling |
| Mounting Method | Cabinet / Panel Mount |
| Dimensions | 758.8 × 201.7 × 220 mm |
| Weight | Approximately 24.49 kg |
Function and Working Principle
The 20BD077A3ANNANA0 converts fixed-frequency three-phase AC power into adjustable voltage and frequency output, enabling precise control of AC motor speed and torque.
Typical Power Conversion Process
Three-Phase AC Input
↓
Rectifier
↓
DC Bus
↓
IGBT PWM Inverter
↓
↓
Three-Phase AC Motor
↓
Industrial Equipment
The drive continuously monitors voltage, current, output frequency, motor load, and operating temperature. Advanced sensorless vector algorithms optimize motor performance, providing smooth acceleration, excellent low-speed torque, rapid response, and high operating efficiency.
Key operating functions include:
- Precision motor speed regulation
- Sensorless vector control
- High starting torque
- Adjustable acceleration and deceleration
- Soft start and controlled stop
- Automatic energy optimization
- Intelligent fault diagnostics
- Continuous operating condition monitoring
- Comprehensive motor protection
- Expandable communication capability
Role in Industrial Automation Systems
The 20BD077A3ANNANA0 functions as the intelligent motor control interface between PLC controllers and three-phase AC motors.
Its primary responsibilities include:
- Variable speed regulation
- Torque optimization
- Energy management
- Process automation
- Equipment protection
- Fault diagnostics
- PLC integration
- Centralized monitoring
The drive can be expanded with optional communication adapters, including EtherNet/IP, DeviceNet, ControlNet, and PROFIBUS, allowing flexible integration into industrial automation networks.
Industrial Applications
Manufacturing Automation
Typical applications include:
- Automated assembly lines
- Conveyor systems
- Packaging machinery
- Robotic work cells
- Material handling equipment
Water and Wastewater Treatment
Suitable for:
- Booster pumps
- Aeration systems
- Filtration equipment
- Chemical dosing systems
- Municipal pumping stations
HVAC Systems
Common applications include:
- Air handling units
- Cooling towers
- Chillers
- Ventilation equipment
- Building automation
Oil and Gas Industry
Frequently installed on:
- Compressors
- Pipeline pumps
- Transfer systems
- Auxiliary equipment
- Process machinery
Mining and Heavy Industry
Ideal for:
- Crushers
- Conveyors
- Feeders
- Processing equipment
- Bulk material handling systems
OEM Industrial Machinery
Widely integrated into:
- Plastic processing equipment
- Textile machinery
- Machine tools
- Woodworking equipment
- Customized automation systems
Installation and System Integration
Before installation, engineers should verify:
- Input voltage compatibility
- Motor specifications
- Cabinet ventilation
- Protective grounding
- Cable sizing
- Environmental conditions
- Control wiring
- Optional communication requirements
- Maintenance clearance
Recommended Installation Procedure
- Disconnect system power.
- Mount the drive securely inside the control cabinet.
- Connect the three-phase input supply.
- Connect the motor output terminals.
- Install protective grounding.
- Complete all control wiring.
- Install optional communication modules if required.
- Verify all electrical connections.
- Restore system power.
- Configure motor parameters.
- Set acceleration and deceleration values.
- Configure protection settings.
- Verify motor rotation.
- Perform operational testing.
- Complete commissioning.
Routine inspection of cooling fans, ventilation passages, electrical terminals, and power components helps maximize reliability and extend equipment service life.
Compatible System Components
| Component | Function |
|---|---|
| ControlLogix PLC | Central automation controller |
| CompactLogix PLC | Machine control |
| PowerFlex 700 AC Drive | Variable frequency motor control |
| PanelView Plus HMI | Operator interface |
| EtherNet/IP Adapter | Optional industrial networking |
| DeviceNet Adapter | Optional fieldbus communication |
| Three-Phase AC Motor | Mechanical drive |
| Line Reactor | Harmonic reduction |
| Circuit Breaker | Electrical protection |
| Dynamic Braking Unit | External braking option |
Recommended Alternative Models
| Model | Product Type | Typical Application |
|---|---|---|
| 20BD077A3ANNANA0 | PowerFlex 700 AC Drive | Standard industrial automation |
| 20BD077A3ANNANC0 | PowerFlex 700 AC Drive | No communication module |
| 20BD077A3ANNADA0 | PowerFlex 700 AC Drive | DeviceNet communication |
| 20BD077A3ANNACA0 | PowerFlex 700 AC Drive | ControlNet communication |
| PowerFlex 755 | Variable Frequency Drive | Advanced industrial automation |
Key Advantages
- Proven PowerFlex 700 platform
- Continuous output current of 77 A
- Supports 60 HP Normal Duty and 50 HP Heavy Duty
- Advanced sensorless vector control
- 24 VDC/AC Vector Control I/O
- Full-numeric LCD Human Interface Module
- Integrated EMC filter with common-mode choke
- Intelligent diagnostics
- Comprehensive motor protection
- Expandable communication architecture
- Reliable continuous-duty operation
- Dimensions 758.8 × 201.7 × 220 mm
- Approximate weight 24.49 kg
Technical FAQs
What is the Allen Bradley 20BD077A3ANNANA0?
The 20BD077A3ANNANA0 is a PowerFlex 700 Variable Frequency Drive designed for high-performance speed and torque control of three-phase AC motors.
What is the rated output current?
The drive provides a continuous output current of 77 A, supporting 60 HP (45 kW) Normal Duty and 50 HP (37 kW) Heavy Duty applications.
Does this model include a Human Interface Module?
Yes. It is equipped with a full-numeric LCD Human Interface Module (HIM) for local configuration, monitoring, and diagnostics.
Does this model include an internal communication module?
No. This configuration is supplied without an internal communication module, allowing users to install optional network adapters as required.
Does the drive include encoder feedback?
No. This model operates using sensorless vector control and does not require encoder feedback.
What are the physical dimensions?
The drive measures 758.8 × 201.7 × 220 mm.
What is the approximate weight?
The drive weighs approximately 24.49 kg.
Which industries commonly use this drive?
It is widely used in manufacturing, mining, HVAC, water treatment, packaging, oil and gas, logistics, and OEM automation equipment.
What protection functions are included?
The drive incorporates overload, overcurrent, overvoltage, undervoltage, overtemperature, ground fault, and short-circuit protection for dependable industrial operation.
Why is preventive maintenance important?
Routine inspection of cooling components, ventilation channels, and electrical terminals helps improve operational reliability, reduce downtime, and extend equipment service life.
Conclusion
The Allen Bradley 20BD077A3ANNANA0 PowerFlex 700 AC Drive delivers precise motor control, advanced sensorless vector technology, intelligent diagnostics, and comprehensive protection for demanding industrial automation applications. Its modular architecture allows flexible communication expansion while ensuring stable and efficient motor operation.
With dimensions of 758.8 × 201.7 × 220 mm and an approximate weight of 24.49 kg, the 20BD077A3ANNANA0 is an ideal cabinet-mounted solution for manufacturing, process industries, water treatment, HVAC, mining, material handling, and OEM machinery requiring reliable long-term AC motor control.