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- Allen Bradley
- 20BD077A0ANNANC0
- 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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We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
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Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
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We provide 7*24 hours service to our customers. We will be there whenever you need us.
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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 20BD077A0ANNANC0 PowerFlex 700 AC Drive is a high-performance Variable Frequency Drive (VFD) from the trusted PowerFlex 700 series, engineered to provide reliable speed regulation, superior torque performance, and intelligent motor protection for demanding industrial automation applications. Designed by Allen Bradley (Rockwell Automation), this AC drive combines advanced vector control technology with flexible configuration options to maximize machine productivity, minimize energy consumption, and improve overall system reliability.
Operating on a 380–480 VAC three-phase power supply, the 20BD077A0ANNANC0 delivers 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 enables precise motor speed control, smooth acceleration, and stable torque throughout the operating range.
This configuration includes 24 VDC control I/O, sensorless vector control, no Human Interface Module (blank cover), no internal communication module, no encoder feedback, no brake IGBT, no internal braking resistor, and a built-in EMC filter with common-mode choke to enhance electromagnetic compatibility. Optional communication adapters such as EtherNet/IP, DeviceNet, ControlNet, PROFIBUS, and Modbus can be installed to support a wide range of industrial network architectures.
With dimensions of 758.8 × 201.7 × 220 mm and an approximate drive weight of 24.49 kg, the unit is well suited for cabinet-mounted installations requiring reliable continuous-duty operation and simplified maintenance.
Typical applications include conveyor systems, pumps, compressors, fans, mixers, packaging equipment, process automation, HVAC systems, mining machinery, water treatment plants, and OEM industrial equipment.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Allen Bradley (Rockwell Automation) |
| Model | 20BD077A0ANNANC0 |
| Product Series | PowerFlex 700 |
| Product Type | AC Drive / Variable Frequency Drive |
| Input Voltage | 380–480 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 | 24 VDC Digital I/O |
| Human Interface Module | Blank Cover (No HIM) |
| Communication | Standard DPI Port (No Internal Communication Module) |
| Feedback | No Encoder Feedback |
| Brake IGBT | Not Installed |
| Internal Brake Resistor | Not Included |
| 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 20BD077A0ANNANC0 converts fixed-frequency three-phase AC input power into adjustable voltage and frequency output, enabling accurate control of 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. Intelligent vector control algorithms automatically optimize motor performance to provide smooth acceleration, excellent low-speed torque, rapid dynamic response, and high operating efficiency.
Primary operating functions include:
- Precision motor speed regulation
- Sensorless vector motor 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 20BD077A0ANNANC0 serves as the intelligent motor control interface between industrial PLC systems and three-phase AC motors.
Its primary responsibilities include:
- Variable speed regulation
- Torque optimization
- Energy management
- Machine protection
- Process automation
- Equipment diagnostics
- PLC integration
- Centralized monitoring
Its modular architecture enables optional industrial communication modules to be added without replacing the base drive, providing excellent scalability for future automation upgrades.
Industrial Applications
Manufacturing Automation
Typical applications include:
- Automated production lines
- Conveyor systems
- Packaging machinery
- Material handling equipment
- Robotic manufacturing cells
Water and Wastewater Treatment
Suitable for:
- Booster pumps
- Filtration systems
- Aeration equipment
- Chemical dosing systems
- Municipal pumping stations
HVAC Systems
Common applications include:
- Air handling units
- Cooling towers
- Chillers
- Ventilation systems
- Building automation
Oil and Gas Industry
Ideal for:
- Compressors
- Transfer pumps
- Pipeline systems
- Auxiliary machinery
- Process equipment
Mining and Heavy Industry
Frequently installed on:
- Crushers
- Conveyors
- Feeders
- Bulk material handling systems
- Processing equipment
OEM Industrial Equipment
Widely integrated into:
- Machine tools
- Plastic processing equipment
- Textile machinery
- Woodworking equipment
- Custom automation systems
Installation and System Integration
Proper installation ensures reliable long-term operation and maximum equipment life.
Before installation, engineers should verify:
- Input voltage compatibility
- Motor nameplate data
- 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 supply.
- Connect the motor output terminals.
- Install the protective earth connection.
- Complete all control wiring.
- Install optional communication adapters 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 channels, electrical terminals, and power modules to ensure dependable long-term performance.
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 | Optional operator interface |
| EtherNet/IP Adapter | Optional industrial networking |
| DeviceNet Adapter | Optional fieldbus communication |
| ControlNet Adapter | Optional real-time communication |
| Three-Phase AC Motor | Mechanical power output |
| Line Reactor | Harmonic mitigation |
| Circuit Breaker | Electrical protection |
Recommended Alternative Models
| Model | Product Type | Typical Application |
|---|---|---|
| 20BD077A0ANNANC0 | PowerFlex 700 AC Drive | Standard industrial motor control |
| 20BD077A0ANNACC1 | PowerFlex 700 AC Drive | Integrated ControlNet communication |
| 20BD077A0ANNANA0 | PowerFlex 700 AC Drive | Standard configuration |
| 20BD096A0ANNANC0 | PowerFlex 700 AC Drive | Higher power applications |
| PowerFlex 755 | Variable Frequency Drive | Advanced industrial automation |
Key Advantages
- Proven PowerFlex 700 platform
- Rated output current of 77 A
- Supports 60 HP Normal Duty and 50 HP Heavy Duty
- Advanced sensorless vector control
- 24 VDC control I/O
- Standard DPI communication interface
- Blank cover for optional HIM installation
- Integrated EMC filter with common-mode choke
- Comprehensive motor protection
- Intelligent diagnostics
- Expandable communication architecture
- Dimensions 758.8 × 201.7 × 220 mm
- Approximate weight 24.49 kg
Technical FAQs
What is the Allen Bradley 20BD077A0ANNANC0?
The 20BD077A0ANNANC0 is a PowerFlex 700 Variable Frequency Drive designed for precision speed and torque control of three-phase AC induction motors in industrial automation systems.
What is the rated output current?
The drive provides a continuous rated 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?
No. This configuration is supplied with a blank front cover, allowing an optional HIM to be installed if local programming or monitoring is required.
Does the drive include an internal communication module?
No. It includes the standard DPI communication interface and supports optional communication adapters such as EtherNet/IP, DeviceNet, ControlNet, PROFIBUS, and Modbus.
Does the drive include encoder feedback?
No. This configuration is supplied without encoder feedback and is designed for sensorless vector control.
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, packaging, material handling, and OEM automation equipment.
What protection functions are included?
The drive incorporates overload, overcurrent, overvoltage, undervoltage, overtemperature, ground fault, and short-circuit protection for reliable industrial operation.
Why is preventive maintenance recommended?
Regular inspection of cooling fans, ventilation passages, electrical terminals, and power components helps improve reliability, reduce downtime, extend equipment life, and maintain optimum operating efficiency.
Conclusion
The Allen Bradley 20BD077A0ANNANC0 PowerFlex 700 AC Drive is a dependable industrial variable frequency drive engineered for demanding motor control applications. Featuring advanced sensorless vector control, intelligent diagnostics, modular communication capability, and comprehensive protection functions, it delivers accurate speed regulation, excellent torque performance, and reliable long-term operation.
With dimensions of 758.8 × 201.7 × 220 mm and an approximate weight of 24.49 kg, the 20BD077A0ANNANC0 is ideally suited for cabinet-mounted installations in manufacturing plants, process industries, HVAC systems, water treatment facilities, mining operations, and other industrial automation environments requiring efficient and reliable AC motor control.