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Official Models and Complete Technical Parameters
HEIDENHAIN 12-pin female connectors are mainly M23-type industrial connectors used for signal transmission in precision measuring equipment such as encoders and length gauges. Below is the complete technical reference and selection guide.
- 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, 例えば. 291698-02). The following are official HEIDENHAIN 12-pin female connectors currently available:
| オフィシャルモデル | Full Description | 応用 |
| 291698‑02 | M23 female coupler, 12-ピン, のために 8 mm OD cable | Extension cable connection for encoders, replacement coupler |
| 291698‑03 | M23 female coupler, 12-ピン, のために 6 mm OD cable | Compact encoder systems, installation in limited spaces |
| 1118892‑02 | M23 flange receptacle, 12-ピン, female | Mounting on encoder body, fixed flange type, IP67保護 |
| 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 |
- 主要な技術仕様
Standard specifications for HEIDENHAIN 12-pin female connectors (M23 type):
| パラメータ | 仕様 | 注意事項 |
| Connector Type | M23 threaded circular connector | 糸: M23×1.5, standard industrial measurement interface |
| Pin Configuration | 12-ピン (12-ポール) female | Gold‑plated socket contacts, 低い接触抵抗 |
| 保護等級 | IP67 (mated) | 防塵・防水, 産業環境に適した |
| 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 mm) and 291698‑03 (6 mm) |
| 動作温度 | −25℃～ +85 ℃ | Adaptable to harsh industrial environments |
| 定格電圧 / 現在 | 60 V / 4 A per contact | Meets power and signal requirements for encoders |
| Contact Resistance | ≤ 5 mΩ | Low loss, ensures high‑precision signal transmission |
- 代表的な用途
- 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
- 産業用オートメーションシステム: 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 | センサー 0 V | Encoder reference ground | White‑green |
| 3 | Signal R+ | Positive side of reference mark signal | Red |
| 4 | Signal R− | Negative side of reference mark signal | Black |
| 5 | Sensor +Supply | Encoder positive supply (通常 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 | 青 |
| 9 | Not connected | Unused | Purple |
| 10 | Signal B+ | Positive side of sinusoidal channel B | 緑 |
| 11 | Shield | Cable shield connection | Bare wire |
| 12 | Sensor −Supply | Encoder negative supply | Gray |
- 選択と設置に関する推奨事項
5.1 モデル選択ガイド
| Application Requirement | 推奨モデル | 理由 |
| Mounting on encoder body | 1118892‑02 | Flange‑mounted, IP67保護, 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 インストールに関する注意事項
Torque Control: 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
- 調達と技術サポート
- Authorized Channels: Purchase through HEIDENHAIN authorized distributors to ensure compatibility and quality
- モデルの検証: Provide the complete equipment model (例えば, encoder model) to the supplier for an exact matching connector
- テクニカルサポート: 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
