Aerotech Automation1 SI4 Stepper Interface

Build flexibility into your motion system with the Automation1 SI4.

our 2- or 4-axis stepper controller that easily interfaces with any

device that can receive clock and direction signals – most commonly

standard stepper drives. With the SI4.you can integrate any existing

third-party device or stepper motor while maintaining all the benefits

of the Automation1 precision motion control platform.

Design Features

• Supports single connector axis interface including clock & direction

output, encoder feedback, 2x EOT limit inputs, marker input, amplifier

enable & fault, plus optional absolute encoder support

• Supports closed-loop stepper control

• Features one clock output (up to 25 MHz) & direction output per axis

• Includes with 8/8 digital I/O (optically isolated), 1x high speed input

Automation1

The SI4 is a part of the user-friendly Automation1 motion control

platform, which includes the following:

• Development Software

• Controls

• Motor Drives

• Fiber-Optic HyperWire® Communication Bus

Complete Your Machine Control

Because the SI4 connects over Automation1’s HyperWire® network, the

axes it controls can be coordinated with other axes on the network to

deliver contoured motion and a single, simple machine control architecture.

Feedback Features

Each clock and direction output axis on the SI4 includes encoder feedback

inputs so that you can verify accurate positioning.

This input accepts incremental square-wave, absolute and (optional)

incremental sine-wave encoder signals.

The dedicated axis feedback signals include encoder feedback (sine +/-,

cosine +/- & marker inputs), 2x end of travel (EOT) limit switch inputs and

amplifier enable and fault I/O. A dedicated digital I/O port supports 8 digital

inputs, 8 digital outputs (sourcing or sinking) and 1 differential high-speed

input.

Platform Power

More than just hardware, the SI4 gives you access to the complete power

of the Automation1 motion control platform. This includes the Automation1

motion development kit (MDK), the intelligent software-based controller

(iSMC) and the powerful AeroScript™ programming language with integrated

RS-274 G and M code support. The Automation1 iSMC can also be

programmed by various controller APIs, which provide flexible methods of

integrating the SI4 and the axes it controls into your system architecture.