RTA – HGD – 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.
• Highly compact (70×70×25 mm), easy to use and cost effective solution. This system is designed to be soldered to a PCB.
• Target: medium and medium-low power applications requiring increase in performance compared to self-built or integrated circuits combined with an improvement of reliability and durability.

Highlights

• Microstepping function up to 3.200 step/rev.
• Separated solder type connectors for logic signals and power connections.
• Electronic damping facility for further acoustic noise and mechanic vibrations reduction at low and medium speed.
• Standard input and output signals ease interfacing with the most commonly used control systems and ensure high noise immunity.

Technical Specifications

• Version: open frame drive in 70 x 70 x 25 mm, equipped with connectors to be soldered on the PCB.
• Range of operating voltages: 24-75 VDC. Operation with a single external supply voltage.
• Range of current: 0.75-6 Amps. Setting up to six equidistant values by means of hardware connections.
• Microstepping: 400, 800, 1.600 and 3.200 steps /revolution. Setting by means of hardware connections.
• Automatic current reduction at motor standstill.
• Protections:
  - Protection against under-voltage and over-voltage.
  - Protection against a short-circuit at motor outputs.
  - Overtemperature protection.
• Possibility to reduce motor current with an external logic signal.
• 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.

Model Name	Drive Type	Bus Voltage Range (Volt.)	Phase Current Range (Amp.)	Dimensions (mm.)	Suggested Motors (Flange size)
HGD 02	STEP/DIR	24 - 75 VDC	0.75 - 2.0	Open frame drive 70 x 70 x 25 mm	NEMA 11, NEMA 17, NEMA 23, 60 mm.
HGD 05	STEP/DIR	24 -75 VDC	2.25 - 6.0	Open frame drive 70 x 70 x 25 mm AMP connectors	NEMA 11, NEMA 17, NEMA 23, 60 mm.