The ASI8100 stepper motor with built-in drive from Beckhoff adds another space-saving tool to the company’s broad range of compact drive technology products (up to 48 V DC). The ASI8100 series combines a stepper motor, stepper motor output stage, and fieldbus connection in a fully integrated design. These EtherCAT devices mount directly on the machine without a control cabinet or upstream I/O, allowing for highly compact, control cabinet-free machines.

Closed-loop control systems can handle a wide range of motions with a wide range of loads if the control system and the mechanics of the system are properly designed for the task. A couple of the more difficult combinations to design for are high inertial mismatches and backlash with hard gearing. The question is not just how to make the system stable but also how to get the desired performance. 

AutomationDirect has added more ACCU-Torq motors from Nidec U.S. Motors. The ACCU-Torq motors are high-performance inverter duty motors and are an excellent cost-effective solution for applications that require 100 percent torque down to zero speed. They are available in 230/460 VAC and are now offered in sizes up to 20 hp at 1,800 rpm and from ¼ to 10 hp at 1,200 rpm.