AEROTECH Automation1 SI4 Stepper Interface
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
| 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) |