Allen-Bradley 81003-269-51-R Gate Drive Board for PowerFlex 7000

Product Description

The Allen-Bradley 81003-269-51-R is a dedicated SGCT gate drive board for Rockwell PowerFlex 7000 medium voltage variable frequency drives. It receives optical trigger signals from the control interface board and converts them into drive pulses to control the SGCT power devices. With high-voltage isolation and short-circuit protection circuits, it is an essential signal driving unit for the inverter power stage, widely used for maintenance and spare replacement of legacy PowerFlex 7000 MV drive systems.

Product Functions

• Receive optical fiber trigger commands and convert into gate drive signals for SGCT devices
• Provide high potential isolation between low-voltage control side and high-voltage power side
• Detect SGCT fault status and feed back fault signals to the main controller via fiber
• Integrated overcurrent, desaturation and dv/dt protection circuits to protect power semiconductors
• Stable pulse output to ensure synchronized switching of the inverter phase units
• Standard plug-in design, compatible with original PowerFlex 7000 cabinet rack installation

Application Scenarios

• Power plant fans, blowers and circulating water pump medium voltage drive systems
• Oil & gas, mining compressors and heavy-duty pump control equipment
• Cement, metallurgy and chemical medium voltage variable frequency drive cabinets
• Large industrial energy-saving and utility MV motor control systems
• Spare parts replacement and repair of existing PowerFlex 7000 drives

FAQ