Current amplifier 3U081 series

electronicrack-mountpulse width modulation

This single-axis, Direct PWM amplifier is designed to fit into a standard 3U UMAC rack. It is intended for driving AC induction, permanent magnet brushless, linear, and brushed DC motors. It has a current rating of 8.0 A Continuous/16.0 A Peak. This drive will operate directly off of the power mains wired to the backplane, typically 110 VAC or 230 VAC, three phase or single phase with appropriate derating. An external power supply of +24 VDC @1A (regulated or unregulated) is required for logic power allowing the user to control motor power separately from control logic power. The amplifiers are interfaced to a PMAC controller via ACC-24E2, ACC-24E2M, ACC-24E3 (Power PMAC only), ACC-8F or ACC-8FS. These drive amplifiers are designed to receive logic-level direct digital PWM motor voltage command from the PMAC controller and convert them to high voltage for motor control. They provide the power conversion, motor current sense feedback to the PMAC controller, and comprehensive system protection. Each drive also accepts motor thermal overload sensors for drive shut down on motor over temperature. The host controller provides all other motor control functions.