Overview
The BEI H25D-SS-450-ABZC-4469-SM18-S encoder is a high-resolution incremental optical rotary encoder designed for precision motion control applications. With 450 PPR (pulses per revolution), it provides accurate angular position feedback for servo motors, CNC machinery, and industrial automation systems. The 4469 line driver output offers robust signal transmission with superior noise immunity compared to open-collector alternatives.
Key Features
- 450 PPR incremental optical encoder with dual A/B channel output
- 4469 line driver provides direct replacement compatibility
- Input voltage 5 to 28 VDC ±5% standard with TTL-compatible logic
- Supply lines protected against overvoltage to 60 volts and reverse voltage
- SM18 connector termination for quick integration
- Optical sensing technology ensures reliable counting in high-vibration environments
Technical Specifications
- Resolution: 450 PPR
- Encoding Type: Incremental (A/B quadrature)
- Supply Voltage: 5–28 VDC ±5%
- Supply Current: 90 mA typical
- Output Type: 4469 Line Driver (source/sink)
- Sensing Technology: Optical LED
- Connector: SM18
- Operating Temperature Range: –40 to 85°C (standard)
- Shaft Type: Solid, keyed or smooth (verify per system)
- Mounting: Servo mount configuration (2.50″ diameter)
Typical Applications
- Servo motor feedback in robotics and CNC machining centers
- Precision position control in automation equipment
- Motor speed and direction monitoring
- Material handling and conveyor systems
- Industrial drive systems requiring quadrature feedback
Compatibility & Replacements
Compatible With
- Servo drive systems accepting A/B quadrature input
- Motion controllers and PLCs with incremental encoder inputs (Allen-Bradley, Siemens, Mitsubishi, etc.)
- Systems requiring 5–28 VDC line driver encoded feedback
- Industrial automation platforms using EtherNet/IP, PROFINET, or Modbus integration
Replaces / Drop-In Replacement For
The 4469 line driver is a direct replacement for 4469, 88C30, 8830 or 26LS31 line drivers. Other BEI H25 series encoders with similar PPR ratings and SM18 connectors may use this unit as a replacement; verify part number structure with manufacturer or system integrator.
Works With
- Studio 5000 / RS-Logix 5000 (Rockwell Automation)
- TIA Portal (Siemens S7-1200, S7-1500)
- GX Works (Mitsubishi MELSEC)
- Omron CX-Programmer / Sysmac
- Generic EtherNet/IP motion controllers
- Line driver compatible receivers (TTL, CMOS logic 5 V)
