Technical Review: Autonics Shaft Type Incremental Rotary Encoder 400P/R - Selection Guide & Specs
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Overview
Industrial automation systems often struggle with precise position and speed feedback in compact spaces. The Autonics E40S6-400-3-N-24 incremental rotary encoder solves this challenge by providing reliable 400 pulse-per-revolution feedback in a compact Ø40mm housing, making it ideal for space-constrained applications in motion control systems and servo motor feedback applications.
Technical Analysis
The Autonics E40S6-400-3-N-24 represents a high-performance incremental encoder designed for industrial environments. With its NPN open collector output and 400 P/R resolution, this encoder delivers precise position and speed feedback for demanding automation applications. The compact Ø40mm design allows installation in tight spaces while maintaining robust performance characteristics.
| Specification | Value | Description |
|---|---|---|
| Resolution | 400 P/R | Pulses per revolution |
| Output Type | NPN Open Collector | Industry-standard sinking output |
| Power Supply | DC 12-24V | Wide voltage range for flexibility |
| Max Response Frequency | 300 kHz | High-speed operation capability |
| Max Allowable Revolution | 5000 rpm | Suitable for high-speed applications |
| Starting Torque | Max 40 gf·cm | Low mechanical resistance |
| Outer Diameter | Ø40mm | Compact footprint |
| Shaft Diameter | Ø6mm | Standard industrial shaft size |
| Cable Length | 2 meters | Convenient installation reach |
| Output Channels | A, B, Z phases | Direction detection and reference pulse |
Buying Considerations
When selecting the Autonics E40S6-400-3-N-24 for your application, consider these critical factors:
Resolution Requirements: The 400 P/R resolution provides excellent position accuracy for most industrial applications. For higher precision requirements, consider higher resolution encoders with 1000 P/R or more.
Output Type Compatibility: The NPN output is compatible with most industrial PLCs and controllers. Verify your control system supports sinking inputs before purchasing.
Shaft Compatibility: Ensure your motor or machine shaft matches the Ø6mm diameter. For different shaft sizes, explore alternative encoder models with various shaft diameters.
Environmental Conditions: This encoder is suitable for standard industrial environments. For harsh conditions with moisture, dust, or extreme temperatures, consider IP-rated encoders with enhanced protection.
Speed Requirements: With a maximum speed of 5000 rpm and 300 kHz response frequency, this encoder handles most industrial speed applications effectively.
Frequently Asked Questions
Q: What is the difference between NPN and PNP output types in rotary encoders?
A: NPN outputs (sinking) switch the negative side of the circuit to ground, while PNP outputs (sourcing) switch the positive side. The Autonics E40S6-400-3-N-24 uses NPN output, which is more common in industrial applications and compatible with most PLCs and controllers.
Q: Can this encoder be used for both position and speed measurement?
A: Yes, incremental encoders like the Autonics E40S6-400-3-N-24 provide both position feedback (through pulse counting) and speed measurement (by calculating pulse frequency). The 400 P/R resolution offers good accuracy for both applications in industrial automation systems.
Q: What is the significance of the Z-phase output in this encoder?
A: The Z-phase (or index pulse) provides a single pulse per revolution that serves as a reference point for absolute position determination. This is particularly useful for homing sequences and establishing a known starting position in motion control applications.
