ALLEN BRADLEY 314066-A02 Power Supply Board for PowerFlex 700 Drive

Overview

The ALLEN BRADLEY 314066-A02 is an internal auxiliary power supply PCB assembly for the Allen‑Bradley PowerFlex 700 series AC variable frequency drives under Rockwell Automation. The ALLEN BRADLEY 314066-A02 converts the internal DC bus voltage into multiple regulated low-voltage DC rails to power the main control board, gate drive circuits, fan control and peripheral signal circuits of the drive. It is a core spare board for PowerFlex 700 drive overhaul and fault replacement, widely stocked for pump, fan, compressor and crane drive maintenance.

Features

The ALLEN BRADLEY 314066-A02 generates isolated multi-channel stabilized DC outputs for the control and power stage electronics of PowerFlex 700. The ALLEN BRADLEY 314066-A02 integrates overvoltage, overcurrent and short-circuit protection circuits to prevent secondary damage to the drive control hardware. The board carries standard factory connectors and fixed mounting layout matching the original PowerFlex 700 power compartment. The ALLEN BRADLEY 314066-A02 is designed for continuous operation under industrial vibration and temperature cycling conditions. Same part number supports direct plug‑and‑play replacement without modifying wiring or mechanical structure.

Specs

Device Type: Auxiliary Power Supply Board Model: ALLEN BRADLEY 314066-A02 Brand: Allen‑Bradley (Rockwell Automation) Applicable Drive: PowerFlex 700 AC drive Function: Multi-channel auxiliary DC power generation for control and gate drive circuits Protection: Overvoltage, overcurrent, short-circuit protection Mounting: Installed inside PowerFlex 700 inverter cabinet Operating Temperature: -10°C ~ +70°C Protection Grade: IP20 inside drive enclosure

Principle

The ALLEN BRADLEY 314066-A02 takes energy from the inverter DC bus and uses a high-frequency switching topology to produce isolated, regulated low-voltage DC supplies for the drive’s main control board, IGBT drive circuitry, cooling fan and signal conditioning circuits. When abnormal output voltage or overcurrent is detected, the built‑in protection circuit shuts down the power supply and triggers a drive fault code to avoid damage to downstream control components.

Applications

The ALLEN BRADLEY 314066-A02 is fitted inside PowerFlex 700 variable frequency drives used for water pumps, ventilation fans, compressors, material handling and crane hoist motor control. The ALLEN BRADLEY 314066-A02 is stocked as spare part for emergency replacement and scheduled overhaul of existing PowerFlex 700 drive systems. It also supports drive retrofitting and control power repair projects.