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FRS4-1/2 - Stepper Motor Driver 6.0A (DC 24-72V)

United Fuses
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FRS4-1/2 is a DC powered stepper motor driver engineered for precise control of 2-phase bipolar stepper motors with encoder feedback. It operates on an input supply voltage range of DC 24V to 72V and delivers a maximum output current of 6.0A peak using PWM constant current drive technology. The driver features a compact form factor measuring 156mm by 97mm by 33.5mm and weighs 5.19 lb, with configurable digital inputs and outputs for pulse, direction, and encoder signals. It complies with industry standards for industrial automation and supports RS485 communication with MODBUS RTU protocol for multi-node bus integration. Typical applications include precise location and speed control in automated machinery, robotics, and CNC equipment.

Key Features & Specifications
  • Weight: 5.19 lb
  • Input Voltage: DC 24V to 72V
  • Maximum Output Current: 6.0A (peak)
  • Motor Type: 2-phase bipolar stepper motor with encoder
  • Drive Mode: PWM constant current
  • Communication Interface: RS485, MODBUS RTU protocol
  • Control Modes: Location and speed control
  • Digital Inputs/Outputs: Configurable pulse, direction, encoder signals
  • Dimensions: 156mm (L) x 97mm (W) x 33.5mm (H)
  • Operating Temperature: 0 to 45°C, 85% RH max