HEIDENHAIN ROQ 425 512 03S17-58 Absolute Rotary Encoder

Technical Specifications

Model：ROQ 425 512 03S17-58 Brand：HEIDENHAIN Product Type: Bearing-integrated multiturn absolute optical rotary encoder, designed for external shaft coupling

Module Feature

Function: HEIDENHAIN ROQ 425 512 03S17-58 multiturn absolute rotary encoder with built-in precision bearing. It outputs absolute angular position immediately after power-on without reference homing. 512 incremental lines per revolution, combines serial EnDat01 absolute data and 1Vpp sine/cosine incremental signals. Adopts solid shaft design and requires external flexible coupling to connect with motor shaft. 17-pin M23 radial connector. Widely used on heavy horizontal boring mills, machining centers and high-performance spindle closed-loop systems.

Measuring principle: Absolute optical scanning Incremental lines: 512 lines per revolution Encoder Interface: EnDat 01 Differentiable revolutions: 4096 turns Onboard components: Optical grating disc, scanning assembly, precision bearing, metal housing, 17-pin M23 connector

LED indicators: POWER, COM, FAULT diagnostic lights

Hardware self-diagnosis

Internal temperature monitoring, signal amplitude detection, EnDat communication fault diagnosis

Programming software

HEIDENHAIN diagnostic software for encoder parameter reading and fault log retrieval

Electrical Parameters

Supply voltage: 3.6VDC ~14VDC Power consumption: Max 0.9W

Mechanical & Structure

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 multiturn absolute rotary encoder

System compatibility

Compatibility description: ROQ425 series belongs to HEIDENHAIN ROQ400 encoder family with EnDat01 interface. Compatible with HEIDENHAIN CC series control units. Suitable for Fives Giddings & Lewis PIC900 CNC heavy boring mill spindle and servo axis.

Function

Function description: ROQ 425 512 03S17-58 is multiturn absolute rotary encoder manufactured by HEIDENHAIN. External flexible coupling compensates axial and radial installation offset, reduces mechanical stress on internal bearing. Multiturn function records up to 4096 revolutions, absolute position available instantly after power on. Compact clamping flange housing resists workshop vibration and temperature fluctuation. 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 DC power. Mount encoder on fixed flange, connect solid shaft and motor rotor by flexible coupling. Connect shielded EnDat encoder cable to servo control unit. Restore power, verify LED indicators, run encoder signal test and spindle orientation calibration.

Interface

Interface list: M23 17-pin flange connector, DC power and EnDat signal terminals,on-board POWER / COM / FAULT LED indicators for HEIDENHAIN ROQ 425 512 03S17-58.

Diagnostic

Troubleshooting: No encoder communication: Check 3.6~14V DC supply, cable breakage or connector pin damage. FAULT LED lit: EnDat communication timeout, low signal amplitude, over-temperature or coupling misalignment. Spindle positioning error: Coupling wear, shaft eccentricity or contamination on optical grating.

Product Brief

Brief description: ROQ 425 512 03S17-58 HEIDENHAIN bearing-integrated multiturn absolute rotary encoder with 512 lines and EnDat01 interface,provides absolute angular position and speed feedback for heavy CNC boring mill spindle and servo motor closed-loop control,rotary encoder spare.