Allen-Bradley 20BC085A0AYNANC0 Product Information
1. Overview
The 20BC085A0AYNANC0 is a 45 kW (approximately 60 HP) AC variable frequency drive (VFD) belonging to the Allen-Bradley AB700 series by Rockwell Automation. It is designed for medium to high-power industrial motor control applications.
2. Parameters (Key Technical Specifications)
| Item |
Specification |
| Rated Power |
45 kW (≈ 60 HP) |
| Input Voltage |
380-480 V AC, Three-phase |
| Output Current |
Up to approximately 80 A (depending on the specific motor’s rated current) |
| Control Method |
V/F, Vector Control (Field-Oriented Control, FOC) |
| Communication Interface |
EtherNet/IP (standard), optional Profibus, DeviceNet |
| Ambient Temperature |
-10 °C ~ 50 °C |
| Protection Class |
IP20 (for indoor cabinet installation) |
| Dimension/Weight |
Standard 19-inch rack, approximately 2.5 kg |
3. Product Features
- High-Efficiency 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: Real-time display of operating parameters, fault codes, and setting interfaces, enabling easy on-site debugging.
- Multiple Protection Functions: Comprehensive protection against overcurrent, overvoltage, undervoltage, overheating, short circuit, etc., to enhance system reliability.
- Flexible Frame Options: Compatible with standard C, D, E frames. Filtered/shielded frames are optional to adapt to different noise environments.
- PowerFlex Architecture Compatibility: Can use similar software tools and parameter libraries of the PowerFlex 400/700/800 series, simplifying engineering design.
4. Structure and Composition
- Drive Body: Equipped with an IGBT power module, heat sink, and internal power supply.
- Control Board: Implements PWM generation, closed-loop control, and communication protocol stacks.
- Terminal Block: Provides connection points for power supply, output, input signals, and communication ports.
- Optional Display Panel: An LCD screen that shows operating status, parameter settings, and fault information.
- Cabinet Mounting Bracket: Complies with the IEC 60204-1 standard for 19-inch racks and can be directly installed in standard control cabinets.
5. Application Fields
- Manufacturing Industry: Equipment requiring precise speed/torque control, such as conveyors, packaging machinery, presses, and injection molding machines.
- Oil and Gas Industry: Pumps, compressors, and heavy-duty fans.
- Food and Beverage Industry: Mixers, filling lines, and cooling systems.
- Mining and Metallurgy Industry: Large fans, hoists, and grinding machines.
- Others: Any industrial automation scenarios that require reliable and programmable motor drives.
6. Installation and Maintenance
Installation
- Follow the mechanical installation guidelines in 750-IN001 (Installation Instructions) to fix the drive on a cabinet or bracket that meets heat dissipation requirements.
- Complete the power wiring: The AC input must be connected to a pre-charging circuit, and the DC input is optional. Ensure the terminal block labels are clear.
- Connect to the communication network (EtherNet/IP) and perform basic network configuration.
Commissioning
- Set parameters (such as motor rated power, acceleration/deceleration time, and control mode) via the LCD display or upper computer software.
- Use the built-in fault diagnosis function to read fault codes and quickly locate problems.
Maintenance
- Regularly check the cleanliness of the heat sink and fan to ensure good heat dissipation.
- Inspect the tightness of the terminal block to prevent loosening caused by vibration.
- Software upgrades can be completed using the official firmware update tool to obtain the latest functions and improvements.

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- Expert Technical Backup: Our technical team boasts over 5 years of hands-on experience in industrial control fields, ready to deliver tailored technical solutions and real-time support for your projects.
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After-Sales Service Commitment
- We stand behind our products with all-round after-sales protection: including fast fault repair (average turnaround time within 3 working days), 7×12 hours technical hotline support, and free on-site operation training for bulk orders. This ensures your industrial control systems run smoothly at all times.
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