Allen‑Bradley 20BD034A PowerFlex 700 AC Drive Unit

Feature & Principle

This vector inverter adopts IGBT power conversion, supports V/F and closed‑loop vector control. It adjusts output frequency and voltage to change motor speed, built‑in overload, overvoltage, undervoltage and phase loss protection. It connects to PLC via DPI communication adapters such as DeviceNet, EtherNet/IP for remote control and data monitoring.

Specifications

Model: 20BD034A Brand: Allen‑Bradley (Rockwell Automation) Series: PowerFlex 700 Rated current: 34A Normal duty power: 25HP @480V Heavy duty power: 20HP @480V Input: 3AC 480V Control mode: V/F, Sensorless vector, closed‑loop vector Interface: DPI communication port Protection: IP20 Certification: UL, CE

Components & Diagnostics

IGBT power module, main control board, current detection circuit, cooling fan, DPI communication interface. Common faults: overcurrent alarm, ground fault, fan failure, communication timeout, encoder feedback error.

Product Brief

20BD034A AC drive, Rockwell heavy‑duty speed control spare widely used for cranes, conveyors, pumps and fans in mining, water treatment and manufacturing lines.