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Official Models and Complete Technical Parameters
Os conectores fêmea de 12 pinos HEIDENHAIN são principalmente conectores industriais do tipo M23 usados para transmissão de sinal em equipamentos de medição de precisão, como codificadores e medidores de comprimento.. Abaixo está a referência técnica completa e guia de seleção.
- Important Model Clarification
Key Note: 22856212 is NOT an official HEIDENHAIN model for a 12-pin female connector. This number does not comply with HEIDENHAIN’s standard naming convention (usually in the format number-number, por exemplo. 291698-02). The following are official HEIDENHAIN 12-pin female connectors currently available:
| Official Model | Descrição completa | Aplicativo |
| 291698‑02 | M23 female coupler, 12-alfinete, para 8 mm OD cable | Extension cable connection for encoders, replacement coupler |
| 291698‑03 | M23 female coupler, 12-alfinete, para 6 mm OD cable | Compact encoder systems, installation in limited spaces |
| 1118892‑02 | M23 flange receptacle, 12-alfinete, female | Mounting on encoder body, fixed flange type, IP67 protection |
| 310196‑xx | Adapter: 12‑pin M23 female to 15‑pin D‑sub male | Encoder signal conversion to standard PC interface, data acquisition systems |
| 663631‑xx | M12 12‑pin female connector | Special compact encoders, small measuring devices |
- Especificações Técnicas Principais
Standard specifications for HEIDENHAIN 12-pin female connectors (M23 type):
| Parâmetro | Especificação | Notas |
| Connector Type | M23 threaded circular connector | Thread: M23×1.5, standard industrial measurement interface |
| Pin Configuration | 12-alfinete (12‑pole) female | Gold‑plated socket contacts, low contact resistance |
| Classificação de proteção | IP67 (mated) | À prova de poeira e à prova d'água, suitable for industrial environments |
| Locking Method | Thread locking, torque 0.4–0.5 Nm | Vibration‑resistant, ensures stable connection |
| Shielding | 360° full shielding | Effectively suppresses electromagnetic interference, ensures signal integrity |
| Suitable Cable | Shielded cable with OD 6–8 mm | Matches models 291698‑02 (8 milímetros) and 291698‑03 (6 milímetros) |
| Temperatura operacional | −25 °C a +85 °C | Adaptable to harsh industrial environments |
| Tensão nominal / Atual | 60 V / 4 A per contact | Meets power and signal requirements for encoders |
| Contact Resistance | ≤ 5 mΩ | Low loss, ensures high‑precision signal transmission |
- Aplicações Típicas
- Incremental Encoders: Transmit 1Vpp sinusoidal signals, TTL/HTL square wave signals for position feedback in machine tools and automation equipment
- Absolute Encoders: Support digital interfaces such as EnDat and SSI for position data and device status transmission
- Length Gauges / Angle Encoders: Connect measuring devices to controllers for high-precision displacement measurement
- Sistemas de Automação Industrial: Used in precision positioning applications such as motion control, robotics, and semiconductor equipment
- Standard 12-Pin M23 Female Pinout (Universal for HEIDENHAIN Encoders)
Below is the typical signal assignment for HEIDENHAIN 12-pin M23 connectors, suitable for incremental encoders (1Vpp signals):
| Pin No. | Function Definition | Typical Signal | Recommended Wire Color |
| 1 | Signal B− | Negative side of sinusoidal channel B | Pink |
| 2 | Sensor 0 V | Encoder reference ground | White‑green |
| 3 | Signal R+ | Positive side of reference mark signal | Vermelho |
| 4 | Signal R− | Negative side of reference mark signal | Black |
| 5 | Sensor +Supply | Encoder positive supply (tipicamente 5 V / 12 V) | Brown |
| 6 | Signal A+ | Positive side of sinusoidal channel A | Yellow |
| 7 | Not connected | Unused | White |
| 8 | Signal A− | Negative side of sinusoidal channel A | Blue |
| 9 | Not connected | Unused | Purple |
| 10 | Signal B+ | Positive side of sinusoidal channel B | Verde |
| 11 | Shield | Cable shield connection | Bare wire |
| 12 | Sensor −Supply | Encoder negative supply | Gray |
- Selection and Installation Recommendations
5.1 Model Selection Guide
| Application Requirement | Modelo recomendado | Razão |
| Mounting on encoder body | 1118892‑02 | Flange‑mounted, IP67 protection, suitable for long‑term use |
| Extension cable connection | 291698‑02/03 | Coupler design, easy on‑site installation and replacement |
| Signal conversion | 310196‑xx | Directly compatible with standard D‑sub interfaces, no extra adapter needed |
| Space‑restricted applications | 663631‑xx | Compact M12 format, suitable for small devices |
5.2 Notas de instalação
Controle de Torque: Maintain tightening torque at 0.4–0.5 Nm to avoid thread damage
Shielding: Ensure reliable shielding connection to reduce electromagnetic interference
ESD Protection: Use an anti-static wristband during installation to protect encoder electronics
Waterproof Sealing: Check that seals are intact after connection to maintain IP67 rating
Cable Selection: Use original HEIDENHAIN cables or compliant shielded cables to ensure signal quality
- Aquisições e Suporte Técnico
- Authorized Channels: Purchase through HEIDENHAIN authorized distributors to ensure compatibility and quality
- Model Verification: Provide the complete equipment model (por exemplo, encoder model) to the supplier for an exact matching connector
- Suporte Técnico: Contact HEIDENHAIN official technical support for detailed pinout and installation instructions
- Accessory Recommendations: Use original HEIDENHAIN dust caps (219926-01) and seals (266526-01) to extend service life
