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- Allen Bradley
- 20BD077A0ANNANB0
- 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 20BD077A0ANNANB0 PowerFlex 700 AC Drive is a high-performance Variable Frequency Drive (VFD) engineered for demanding industrial automation and motion control applications. As a member of the trusted PowerFlex 700 family, this AC drive delivers precise motor speed regulation, excellent torque performance, advanced vector control, and comprehensive protection functions for three-phase AC induction motors.
Designed for 480 VAC three-phase power systems, the 20BD077A0ANNANB0 provides a rated continuous output current of 77 A, supporting 60 HP (45 kW) Normal Duty and 50 HP (37 kW) Heavy Duty motor applications. By converting fixed-frequency AC input into variable voltage and frequency output, the drive optimizes motor efficiency, minimizes mechanical stress, reduces energy consumption, and improves overall production performance.
This configuration features 115 VAC control I/O, sensorless vector control, a full-numeric LCD Human Interface Module (HIM), no internal industrial communication module, no brake IGBT, no internal braking resistor, no encoder feedback, and an integrated EMC filter with common-mode choke. Optional communication adapters such as EtherNet/IP, DeviceNet, ControlNet, PROFIBUS, and Modbus can be added to satisfy different industrial networking requirements.
With overall 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 requiring dependable continuous-duty operation and simplified maintenance.
Typical applications include conveyor systems, compressors, industrial pumps, fans, mixers, packaging machinery, mining equipment, material handling systems, water treatment facilities, HVAC installations, process industries, and OEM automation equipment.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Allen Bradley (Rockwell Automation) |
| Model | 20BD077A0ANNANB0 |
| Product Series | PowerFlex 700 |
| 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 / Vector Control |
| Control I/O | 115 VAC Digital I/O |
| Human Interface Module | Full-Numeric LCD HIM |
| Communication | Standard DPI Port (No Internal Network Module) |
| Brake IGBT | Not Installed |
| Internal Brake Resistor | Not Included |
| Feedback | No Encoder Feedback |
| EMC Filter | Integrated 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 20BD077A0ANNANB0 converts fixed-frequency three-phase AC power into adjustable voltage and frequency output for precise motor speed and torque control.
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, frequency, and motor load while using advanced vector control algorithms to optimize output performance. This ensures smooth acceleration, accurate speed regulation, stable torque, and efficient energy utilization throughout the operating range.
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
- Continuous fault monitoring
- Built-in diagnostics
- Comprehensive motor protection
- Expandable industrial communication
Role in Industrial Automation Systems
The 20BD077A0ANNANB0 serves as the intelligent motor control interface between industrial PLC systems and high-power AC motors.
Its primary functions include:
- Variable speed regulation
- Torque optimization
- Energy management
- Process automation
- Equipment protection
- Fault diagnostics
- PLC integration
- Centralized monitoring
The modular design enables users to expand communication capabilities by installing optional industrial network adapters.
Industrial Applications
Manufacturing Automation
Suitable for:
- Automated production lines
- Conveyor systems
- Packaging machinery
- Material handling equipment
- Robotic manufacturing cells
Water and Wastewater Treatment
Typical applications include:
- High-capacity pumps
- Booster stations
- Aeration systems
- Filtration equipment
- Chemical dosing systems
HVAC Systems
Ideal for:
- Air handling units
- Cooling towers
- Chillers
- Ventilation systems
- Building automation
Oil and Gas Industry
Commonly installed on:
- Compressors
- Transfer pumps
- Pipeline equipment
- Auxiliary systems
- Process machinery
Mining and Heavy Industry
Suitable for:
- Crushers
- Conveyors
- Feeders
- Processing machinery
- Bulk material handling systems
OEM Industrial Machinery
Frequently integrated into:
- Machine tools
- Plastic processing machinery
- Textile equipment
- Woodworking machines
- Customized automation equipment
Installation and System Integration
Proper installation is essential for ensuring maximum reliability and service life.
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 all electrical power.
- Mount the drive securely inside the control cabinet.
- Connect the three-phase input power 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 times.
- Configure protection settings.
- Verify motor rotation.
- Perform operational testing.
- Complete commissioning.
Routine maintenance should include inspection of cooling fans, ventilation passages, electrical terminals, and power components to maximize operational reliability.
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 | Local monitoring and operation |
| EtherNet/IP Adapter | Optional industrial networking |
| DeviceNet Adapter | Optional fieldbus communication |
| ControlNet Adapter | Optional industrial communication |
| Three-Phase AC Motor | Mechanical drive |
| Line Reactor | Harmonic mitigation |
| Circuit Breaker | Electrical protection |
Recommended Alternative Models
| Model | Product Type | Typical Application |
|---|---|---|
| 20BD077A0ANNANB0 | PowerFlex 700 AC Drive | 77 A industrial motor control |
| 20BD077A0ANNANA0 | PowerFlex 700 AC Drive | Standard configuration without HIM |
| 20BD077A0ANNACC1 | PowerFlex 700 AC Drive | Integrated ControlNet communication |
| 20BD096A0ANNANB0 | PowerFlex 700 AC Drive | Higher output capacity |
| PowerFlex 755 | Variable Frequency Drive | Next-generation industrial automation |
Key Advantages
- Proven PowerFlex 700 architecture
- Rated output current of 77 A
- Supports 60 HP Normal Duty and 50 HP Heavy Duty
- Advanced sensorless vector control
- Full-numeric LCD Human Interface Module
- 115 VAC control I/O
- Expandable industrial communication
- Integrated EMC filter with common-mode choke
- Intelligent diagnostics
- Comprehensive motor protection
- Reliable continuous-duty operation
- Dimensions 758.8 × 201.7 × 220 mm
- Approximate weight 24.49 kg
Technical FAQs
What is the Allen Bradley 20BD077A0ANNANB0?
The 20BD077A0ANNANB0 is a PowerFlex 700 Variable Frequency Drive designed for high-performance speed and torque control of three-phase AC induction motors.
What is the rated output current?
The drive delivers a continuous rated output current of 77 A, supporting 60 HP (45 kW) Normal Duty and 50 HP (37 kW) Heavy Duty motor applications.
Does this model include a Human Interface Module?
Yes. It includes a full-numeric LCD Human Interface Module (HIM) for local configuration, monitoring, and diagnostics.
Does this model include an industrial communication module?
No. It provides a standard DPI communication port and supports optional communication adapters including EtherNet/IP, DeviceNet, ControlNet, PROFIBUS, and Modbus.
Does the drive include a brake IGBT?
No. This configuration is supplied without an internal brake IGBT.
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, oil and gas, material handling, packaging, and other industrial automation applications.
Where should the drive be installed?
The drive should be mounted inside a properly ventilated industrial control cabinet with adequate grounding, cooling airflow, and sufficient maintenance clearance.
Why is preventive maintenance important?
Routine inspection of cooling systems, electrical terminals, ventilation paths, and power components helps improve reliability, reduce downtime, extend equipment life, and maintain efficient operation.
Conclusion
The Allen Bradley 20BD077A0ANNANB0 PowerFlex 700 AC Drive is a dependable industrial variable frequency drive engineered for demanding motor control applications. Featuring advanced vector control, a full-numeric LCD Human Interface Module, intelligent diagnostics, and comprehensive protection functions, it delivers precise speed regulation, stable torque output, and long-term operational reliability.
With dimensions of 758.8 × 201.7 × 220 mm and an approximate weight of 24.49 kg, the 20BD077A0ANNANB0 is ideally suited for cabinet-mounted installations in manufacturing facilities, process industries, HVAC systems, mining operations, water treatment plants, and other industrial environments requiring reliable and efficient AC motor control.