Product Information for Allen-Bradley 20BC072A0AYNANC0

1. Overview

The 20BC072A0AYNANC0 is an AC variable frequency drive belonging to the PowerFlex 700 series by Rockwell Automation (Allen‑Bradley). It has a rated power of 50 HP (approximately 37 kW), a rated current of 72 A, and is suitable for 400 V three-phase power supply. This drive adopts a modular design, is compatible with the PowerFlex 400/700/800 software platform, and supports multiple communication protocols (such as EtherNet/IP, DeviceNet, Profibus). It enables high-speed and precise motor control as well as energy consumption optimization.

2. Specifications

Parameter	Specification
Rated Power	50 HP (≈ 37 kW)
Rated Voltage	400 V AC, Three-phase
Rated Current	72 A
Frame	Standard C, D, E frames; optional Filtered A/B frames
Control Method	V/Hz, Vector Control (FOC)
Communication Interface	EtherNet/IP, DeviceNet, Profibus, Modbus RTU
Display	Full-digital LCD, displaying real-time operating parameters and fault codes
Protection Functions	Overcurrent, overvoltage, undervoltage, overheating, short circuit, ground fault, etc.
Ambient Temperature Range	-20 °C ~ +50 °C (optional radiator installation available)
Dimensions	Approximately 200 mm × 150 mm × 120 mm (slightly different depending on frame model)

3. Product Features

• Efficient IGBT Power Module: Adopts the latest IGBT technology to reduce power consumption and improve heat dissipation efficiency.
• Modular Structure: The drive body, control board, terminal block, and display panel can be replaced independently, facilitating maintenance.
• Full-Digital LCD Display: Provides real-time operating parameters, fault codes, and a setting interface, enabling intuitive on-site debugging.
• Multiple Protection Functions: Covers overcurrent, overvoltage, undervoltage, overheating, short circuit, etc., to enhance system reliability.
• Flexible Frame Options: Compatible with C, D, E frames; optional filtered/shielded frames to adapt to different noise environments.
• Compatibility with PowerFlex Software Platform: Can use the configuration tools and parameter libraries of PowerFlex 700/400/800, simplifying engineering design.

4. Structure and Composition

• Drive Body: Equipped with an IGBT power module and a heat dissipation system.
• Control Board: Built-in microprocessor, responsible for PWM generation, closed-loop control, and communication protocol stack.
• Terminal Block: Provides connection points for power supply, output, control signals, and communication interfaces.
• Display Panel (Optional): LCD screen displaying operating status, parameter settings, and fault information.
• Chassis/Frame: Metal frame compliant with IEC 60204‑1 standard, providing IP20 protection rating (higher protection rating optional).

5. Application Fields

• Industrial Production Lines: Speed and torque control of conveyors, rolling shutters, and packaging machinery.
• Pump Equipment: Soft start and energy-saving operation of centrifugal pumps and screw pumps.
• Fans and Blowers: Variable frequency speed regulation to achieve precise matching of air volume and energy consumption.
• Machining Centers and CNC Machine Tools: High-precision servo control to improve processing quality.
• Mining and Metallurgy: Reliable drive and remote monitoring of heavy-duty motors.

6. Installation and Maintenance

Installation

1. Ensure the chassis is fixed in a cabinet or frame compliant with IEC 60204‑1.
2. Complete the wiring of power supply, output, control, and communication terminals according to the wiring diagram, and ensure the phase sequence is correct.
3. Connect the ground wire and check that the grounding resistance meets the specifications.
4. Conduct a no-load inspection before startup to confirm there are no fault codes on the display screen.

Debugging

1. Use PowerFlex configuration software (DriveExplorer/Studio 5000) to set parameters (such as motor rated power, acceleration/deceleration time, protection threshold).
2. Monitor the operating curve through the LCD or upper computer, and fine-tune the PID parameters to obtain the optimal dynamic response.

Maintenance

1. Regularly check whether the heat sink, fan, and air vent are blocked.
2. Conduct on-site calibration once every 12 months, and check the insulation resistance of the IGBT module.
3. Record fault codes and replace corresponding components with reference to the maintenance manual.
4. Software upgrades are recommended to be completed during the shutdown maintenance window to ensure the firmware version is compatible with the on-site network.

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• Professional Technical Support: We have an experienced technical team capable of providing you with professional technical support and services.
• Favorable Prices: We have established good cooperative relationships with suppliers, enabling us to offer you competitive prices.
• Thoughtful Service: We provide comprehensive pre-sales, in-sales, and after-sales services to ensure you have no worries.