Description
The Allen-Bradley 8520-ASM3 is a 3-axis analog servo control board designed for CNC systems, specifically models 9/260 and 9/290. It delivers precise analog control with high-resolution output and integrated firmware functionality for complex motion control applications.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Allen-Bradley
|
| Category |
|
| Part Number |
8520-ASM3 |
| Subcatecory |
Servo Add-On Module/Board
|
| Axes |
3 |
| Output Voltage Range |
+/- 10V |
| Output Offset Voltage |
500mV max. |
| Resolution |
1.22mV |
| Sampling Frequency |
500Hz |
| Output Current |
5mA max. |
| Conversion time |
8.25 ms |
| Gain Error |
+/-1 LSB max. |
| Weight |
1.85 lbs |
Information About 8520-ASM3
The 8520-ASM3 analog servo board is engineered for use with Allen-Bradley CNC systems and supports up to three independent motion control axes. It provides ±10V analog output with 1.22 mV resolution, ensuring accurate positioning and smooth axis movement. The board includes three D-sub connectors and integrates firmware upgrades for enhanced system functionality. Though discontinued by the manufacturer, it remains a valued module in legacy CNC systems requiring analog servo output.
Key Features:
- 3-Axis Motion Control: supports analog control for three servo axes with firmware-enhanced functionality.
- High Output Precision: ±10V output range with 1.22 mV resolution and ±1 LSB gain error for smooth, accurate movement.
- Optimized Timing: features a 500 Hz sampling rate and 8.25 ms conversion time to ensure consistent servo feedback.
- Low Offset Voltage: maintains a maximum output offset of 500 mV and current draw limited to 5 mA per axis.
- Legacy CNC Compatibility: specifically designed for integration with Allen-Bradley 9/260 and 9/290 CNC controllers.
- Discontinued Status: no longer manufactured but supported in existing installations with backward-compatible firmware.
The 8520-ASM3 delivers precise analog servo control across three axes, combining legacy CNC integration with fine-tuned output characteristics for industrial motion applications.
