RTA – SAC – Open Frame, Stepping Motor Drive

Introduction

• Series of ministep bipolar chopper drives, suitable for driving medium power two-phase stepping motors, with four, six or eight terminals.
• Compact, easy to use and cost effective solution. This system is designed for easy mounting inside a metallic electrical cabinet.
• Equipped with power supply and particularly suitable for stand-alone applications (AC input).
• Target: medium and medium-low power applications without special configuration requirement, but needing great dynamic performance, high reliability, low acoustic noise and mechanic vibrations reduction .

Highlights

• Microstepping function up to 4.000 step/rev.
• Electronic damping facility for further acoustic noise and mechanic vibrations reduction at low and medium speed.
• Separated connectors for logic signals and power connections.
• Optoinsulated and differential input and output signals ease interfacing with the most commonly used control systems.

Technical Specifications

• Version: open frame drive in 101 x 125 x 35 mm, equipped with AMP connectors.
• Range of operating voltages: 24-50 VAC.
• Range of current: 1,7-6,0 Amp. Setting up to four possible values by means of dip-switches.
• Microstepping: 400, 800, 1.600, 3.200 and 500, 1.000, 2.000, 4.000 steps /revolution. Setting by means of dip-switches.
• Automatic current reduction at motor standstill.
• Protections:
  - Protection against under-voltage and over-voltage.
  - Protection against a short-circuit at motor outputs.
  - Overtemperature protection with thermal sensor.
• Optoinsulated inputs compatible with differential control signals.
• Possibility to switch off motor current with an external logic signal.
• Operation with a single external supply voltage.High efficiency CHOPPER with MOSFET final stage output.
• Electronic damping facility for further acoustic noise and mechanic vibrations reduction at low and medium speed.
• Warranty: 24 months.