Allen-Bradley 20P41AD412RA0NNN

Overview

Main Technical Specifications

• Input Voltage: 460 V AC (3-phase), 50/60 Hz ±5%.
• Rated Power: 250 HP (corresponding to drive current code 412).
• DC Output Current: 412 A (DC Amps), with a corresponding AC input current of 336.6 A (AC Line Amps).
• Frame: Frame D. Terminals C and D have a length of 134 mm, which is only used in high-power models such as 800 HP/900 HP (460 V AC); other Frame D models have terminals with a width of 100 mm.
• Standard I/O: 8 digital inputs, 4 digital outputs, and 3 analog inputs (typical configuration).
• Ambient Temperature: A maximum of 50 °C for open-type (IP20/NEMA/UL) drives, and up to 55 °C with derating.

Product Features

• Digital Control: It provides a complete digital control platform, enabling precise regulation of speed, acceleration/deceleration, and current.
• Communication Compatibility: Equipped with a built-in DPI™ interface, it is compatible with all PowerFlex DPI communication adapters, facilitating networking with upper-level systems such as PLCs and HMIs.
• Diagnostics and Maintenance: It has rich internal diagnostic functions, LED indicators, and error codes, supporting quick on-site fault location.
• Operating Modes: Supports both non-regenerative and regenerative operating modes to adapt to different load characteristics.
• Modular Design: The power module and control module are separated, allowing for easy on-site replacement and upgrade.

Structure and Composition

• Power Module: Internally includes a rectifier bridge, power transistors (IGBTs), and current/voltage sensors to achieve efficient DC output.
• Control Module: Equipped with a microprocessor, DPI communication chip, parameter storage, and a user interface (LED/display screen).
• Terminal Block: Terminals C and D are used for high-power output, while terminals U, V, and W are for 3-phase AC input; terminals U1 and V1 are field control terminals, and a step-down transformer can be optionally equipped based on the motor field voltage.
• Heat Dissipation and Enclosure: Adopts forced air cooling or natural heat dissipation design, and the enclosure complies with the IP20 standard, facilitating installation in industrial on-site environments.

Typical Application Fields

• High-Inertia Loads: Equipment that requires high torque and fast acceleration/deceleration, such as extruders, winders, and calenders.
• Shock Loads: Instantaneous shock working conditions like stamping and forging.
• Regenerative Braking: Systems that feed kinetic energy back to the power grid during the braking phase (e.g., reel machines, recovery systems).
• Coating and Printing: Motor drives that require stable and adjustable speed (e.g., spraying machines, printing presses).
• Others: Any high-power DC motor modification projects that require current/speed control.

Installation Key Points

• Power Wiring: Connect the 460 V AC 3-phase input to terminals U, V, and W; ensure the use of fuses or circuit breakers that meet the rated current (refer to the 460 V AC input drive table).
• Field Control: If the motor field voltage does not match the drive output, a suitable field control transformer (e.g., 230 V→460 V) must be installed before terminals U1 and V1.
• Terminal Arrangement: The high-power output terminals C and D use 134 mm-long connection terminals to ensure secure wiring and avoid overheating.
• Grounding and Shielding: All metal enclosures must be reliably grounded, and signal wires should be shielded to reduce electromagnetic interference.
• Parameter Setting: Set the drive parameters (such as rated current, braking resistor, DPI address, etc.) through Connected Components Workbench or PowerFlex configuration software. If necessary, configure the field current matching in the DIP switches or parameters 374/280.

Maintenance and Fault Diagnosis

• Daily Inspection: Check that the power supply, wiring, and cooling fans are operating normally; inspect the tightness of the terminals.
• Diagnostic Tools: Use the built-in LED/display screen to view error codes; read real-time status (current, temperature, speed) through the DPI network.
• Preventive Maintenance: Regularly clean the heat sink, inspect the IGBT temperature sensor, and verify the on-site grounding resistance.
• Fault Handling: Replace the corresponding components or adjust parameters according to the error codes and with reference to the user manual; for regenerative braking systems, check whether the braking resistor is damaged.

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If you would like to learn more about our products and services, please feel free to contact us at any time!

• Sales Manager : Jinny
• Email : sales5@xrjdcs.com
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