HEIDENHAIN ROD 426 3600 Incremental Rotary Encoder

Technical Specifications

Model：ROD 426 3600 Brand：HEIDENHAIN Product Type: Bearing-integrated incremental optical rotary encoder requiring external shaft coupling

Module Feature

Function: HEIDENHAIN ROD 426 3600 incremental rotary encoder with built-in precision bearing. It outputs TTL square wave A/B/Z incremental signals for angular position and rotational speed measurement. 3600 lines per revolution. Adopts 6mm solid shaft design, which must be connected to motor shaft by an external flexible coupling. 58mm synchro flange mounting structure. Max scanning frequency reaches 300 kHz. Widely used on heavy horizontal boring mills, machining centers and high-performance servo drive systems.

Measuring principle: Incremental optical scanning Incremental lines: 3600 lines per revolution Output Signal: TTL square wave A/B/Z + reference mark Max scanning frequency: 300 kHz Solid shaft: 6 mm diameter Onboard components: Optical grating disc, scanning assembly, precision bearing, metal synchro flange housing, 12-pin M23 connector

LED indicators: POWER, SIG, FAULT diagnostic lights

Hardware self-diagnosis

Signal amplitude monitoring, reference mark detection, signal integrity inspection

Programming software

HEIDENHAIN diagnostic software for signal quality verification and parameter monitoring

Electrical Parameters

Supply voltage: 5VDC ±10% Power consumption: Max 120mA

Mechanical & Structure

Mounting: Synchro flange mounting, solid shaft connected via external flexible coupling Protection class: IP64 (housing)

Environmental

Operating temperature: -40℃ ~ +100℃ Ambient humidity: 5~85% non-condensing Certification: CE Status: HEIDENHAIN heavy-duty incremental rotary encoder

System compatibility

Compatibility description: ROD426 series belongs to HEIDENHAIN ROD400 encoder family, compatible with drives supporting TTL incremental signals. Suitable for Fives Giddings & Lewis PIC900 CNC heavy boring mill spindle and servo axis.

Function

Function description: ROD 426 3600 is incremental rotary encoder manufactured by HEIDENHAIN. External flexible coupling can compensate radial and axial installation misalignment, reducing stress on encoder internal bearing. Reference mark Z pulse is required for axis homing after power-up. Robust mechanical construction resists vibration and temperature variation in machine workshop environment. It supplies high-resolution position feedback for closed-loop servo control. It is high precision rotary measuring spare for heavy CNC boring mills.

Installation

Installation steps: Follow lockout/tagout safety procedure before installation. Cut off encoder 5VDC power. Fix encoder synchro flange, connect solid shaft and motor rotor with flexible coupling. Connect shielded encoder cable to servo control unit. Restore power, verify LED indicators, run signal test and axis homing calibration.

Interface

Interface list: M23 12-pin circular connector, 5VDC power and TTL incremental signal terminals,on-board POWER / SIG / FAULT LED indicators for HEIDENHAIN ROD 426 3600.

Diagnostic

Troubleshooting: No encoder signal: Check 5V power supply, cable breakage or connector pin damage. FAULT LED lit: Low signal amplitude, grating contamination or coupling misalignment. Intermittent position jump: Vibration, coupling wear or bearing deterioration.

Product Brief

Brief description: ROD 426 3600 HEIDENHAIN bearing-integrated incremental rotary encoder with 3600 lines and TTL output,provides angular position and speed feedback for heavy CNC boring mill spindle and servo motor closed-loop control,rotary encoder spare.