20DC043A0EYNANANE (Allen-Bradley PowerFlex 700S AC Drive): Specification and Application Guide
1. Overview
The 20DC043A0EYNANANE is an AC variable frequency drive (VFD) belonging to the PowerFlex 700S Series under Rockwell Automation (Allen-Bradley). It is designed for use with 3-phase 400 V AC power supplies and primarily serves motor speed regulation and control in industrial settings. Classified as a standard (Ser. D) product, this model features an IP20 protection rating, making it suitable for installation in well-ventilated environments free from corrosive gases.
2. Specifications
| Specification |
Description |
| Product Model |
20DC043A0EYNANANE |
| Series |
PowerFlex 700S |
| Input Voltage |
400 V AC (3-phase) |
| Input Current |
Approximately 37 A (rated) |
| Output Power |
Approximately 20 kW (equivalent to 27 HP) |
| Protection Rating |
IP20 (NEMA Type 1) |
| Human-Machine Interface (HMI) |
Blank cover plate (display screen optional) |
| Main Control Component |
IGBT power module |
| Overvoltage/Undervoltage Protection |
Adjustable bus undervoltage trip |
| Heat Dissipation Monitoring |
Thermistor monitoring with microprocessor over-temperature trip |
| Start/Stop Time |
Power-Ride-Thru: 15 ms (full load); Logic-Ride-Thru: 0.25 s (not running) |
3. Product Features
- High-Efficiency IGBT Inverter Technology: Enables wide-range speed regulation and reduces energy consumption.
- Adjustable Bus Undervoltage Protection: Adapts to different power supply conditions and enhances system reliability.
- Fast Start/Stop (Power-Ride-Thru): Meets the needs of applications sensitive to instantaneous load changes.
- Modular Design: Facilitates quick on-site installation and later maintenance.
- Standardized Dimensions and Wiring: Compatible with the layout of most industrial cabinets.
4. Structure and Components
- Power Input Terminal: 3-phase input terminal blocks equipped with fuse/circuit breaker protection.
- Power Module: IGBT stack array that provides efficient power conversion.
- Heat Dissipation System: Internal heat sinks + optional fan, combined with thermistor monitoring.
- Control Unit: A microprocessor responsible for parameter setting, fault diagnosis, and communication.
- Optional Human-Machine Interface (HMI): LCD/LED display with buttons, or a blank cover plate.
- Enclosure: Metal cabinet with IP20 protection rating, offering mechanical protection.
5. Application Fields
- Material handling systems (conveyor belts, elevators)
- Food processing (mixing, packaging equipment)
- Textile machinery (spinning, weaving machines)
- Plastic processing (injection molding, extruders)
- Machine tools (CNC lathes, milling machines)
- Other industrial automation equipment requiring reliable speed regulation.
6. Installation and Maintenance
Installation
- Secure the drive in a well-ventilated cabinet free from corrosive gases.
- Complete the wiring for 3-phase power, output motor, grounding, and control signals in accordance with the wiring diagram.
- If a display screen or keypad is used, assemble the corresponding panel as instructed in the manual.
Commissioning
- Set basic parameters (such as motor rated power and acceleration/deceleration time) via the built-in parameter menu or an external PLC/controller.
- Check the tightness and phase sequence of all wiring connections, then power on the drive only after confirming no abnormalities.
Maintenance
- Regularly inspect cooling fans and heat sinks for dust accumulation to maintain effective heat dissipation.
- Check input/output terminals and wiring terminals for looseness or corrosion.
- Use the drive’s built-in fault diagnosis function or upper-level system monitoring to handle alarm information promptly.
- Do not allow non-professionals to disassemble internal power modules, as this may pose safety hazards.

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