HEIDENHAIN 284807-40 Encoder Cable Assembly

Technical Specifications

Model：284807-40 Brand：HEIDENHAIN Product Type: Pre-assembled shielded encoder signal cable

Module Feature

Function: HEIDENHAIN 284807-40 prefabricated shielded encoder cable. It is specially designed for HEIDENHAIN EnDat rotary encoders, transmits power supply and serial EnDat position signals. Integrated overall copper braid shielding effectively suppresses electromagnetic interference from servo drives. Oil-resistant and wear-resistant outer sheath for machine tool workshop environment. Widely used on heavy horizontal boring mills, machining centers and spindle encoder connection.

Cable structure: Multi-core twisted pair, overall copper braided shield Connector: M23 circular connector Application: EnDat absolute rotary encoder Onboard components: M23 metal plug, shielded multi-core cable, strain relief

LED indicators: Not applicable

Hardware self-diagnosis

Continuity test, shielding integrity inspection, insulation resistance measurement

Programming software

Not required

Electrical Parameters

Rated voltage: 60V Insulation resistance: ≥100MΩ

Mechanical & Structure

Mounting: Fixed wiring inside machine cabinet and spindle area Protection class: IP67 (connector when mated)

Environmental

Operating temperature: -20℃ ~ +80℃ Ambient humidity: 5~85% non-condensing Certification: CE Status: HEIDENHAIN machine tool heavy-duty pre-assembled encoder cable

System compatibility

Compatibility description: 284807-40 is HEIDENHAIN original EnDat encoder cable, compatible with EQN, EQI series EnDat rotary encoders. Suitable for Fives Giddings & Lewis PIC900 CNC heavy boring mill spindle encoder wiring.

Function

Function description: 284807-40 is pre-terminated encoder cable manufactured by HEIDENHAIN. Twisted pair and full shielding design guarantees stable high-speed EnDat serial communication, prevents signal distortion caused by motor electromagnetic noise. Oil-resistant outer jacket resists cutting fluid and mechanical abrasion. Pre-assembled connector saves on-site wiring work. It is essential signal transmission spare for heavy CNC boring mills.

Installation

Installation steps: Follow lockout/tagout safety procedure before installation. Cut off all device power. Route the cable along cable channel, avoid parallel arrangement with high-power motor cables. Plug M23 connector into encoder and control unit respectively, lock connector screw ring. Fix cable with cable ties to avoid tensile stress. Restore power, run encoder communication test.

Interface

Interface list: M23 circular connector, power and EnDat signal conductors for HEIDENHAIN encoder, no LED indicators for 284807-40.

Diagnostic

Troubleshooting: Encoder communication failure: Check connector locking status, cable breakage, insulation damage. Intermittent signal dropout: Cable pulling, abrasion damage or poor shielding grounding. Short circuit: Cut fluid penetration into connector, damaged cable insulation.

Product Brief

Brief description: 284807-40 HEIDENHAIN pre-assembled shielded EnDat encoder cable with M23 connector,used for signal and power transmission between absolute rotary encoder and CNC control system for heavy CNC boring mill,encoder cable spare.