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.
- Description
- Specifications
- Dimensions
- Ordering Info
- Downloads
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.
SI4 Specifications
| Category | Specification |
|---|---|
| HyperWire Communication | 2x HyperWire small form-factor pluggable (SFP) ports |
| Control Output | Supports two or four axes of stepper clock & direction control |
| Control Supply | Voltage: 24 VDC Current, 2 Axis Unit: 2 A max, 0.45 A typical Current, 4 Axis Unit 2 A max, 0.6 A typical |
| User Power Supply Output | 5 VDC |
| Modes of Operation | Open loop Closed loop |
| Protective Features | Output short circuit Control power supply undervoltage |
| 25-Pin Axis Connector | Stepper clock & direction output High-speed differential inputs (encoder sin, cos and marker) Absolute encoder interface (support optional) CW and CCW limits 5 VDC power supply Amplifier enable and fault. |
| Digital I/O Connector | 8x optically isolated digital inputs (externally powered, 5-24 VDC) 8x optically isolated digital outputs (externally powered, 5-24 VDC) 1x optically isolated high-speed inputs 1x 5 VDC power supply |
| Drive Array Memory | 16.7 MB (4,194,304 32-bit elements) |
| High Speed Data Capture | Yes (50 ns latency) |
| Automatic Brake Control | Assignable digital output |
| E-Stop Sense Input | Assignable digital input |
| Absolute Encoder (Optional) | BiSS C Unidirectional; EnDat 2.1; EnDat 2.2 |
| Position Command Update Rate | 20 kHz |
| Operating Temperature | 0 to 40 °C |
| Storage Temperature | -30 to 85 °C |
| Weight | 0.59 kg (1.30 lb) |
| Compliance | CE approved, Follows EU 2015/863 RoHS 3 directive |
Automation1 SI4
| Option | Description |
|---|---|
| Automation1 SI4 | Automation1 SI4 Stepper Controller |
Peak Current
| Option | Description |
|---|---|
| -2P1 | 2 Axes of Control, Standard Packaging |
| -2P2 | 2 Axes of Control, OEM Packaging |
| -4P1 | 4 Axes of Control, Standard Packaging |
| -4P2 | 4 Axes of Control, OEM Packaging |
Absolute Encoder
| Option | Description |
|---|---|
| -A0 | No Absolute Encoder Support (default) |
| -A1 | Absolute Encoder Support |
Related Products
Automation1 MDK Motion Development Kit
Automation1 iSMC Intelligent, Software-Based Motion Controller
Automation1 XC4 PWM Servo Drive
