HEIDENHAIN ERN1387 ID 385488-52 ERN 1387 series

Series positioning: It belongs to the ERN 1300 series incremental encoder, which is designed for high-precision industrial applications and is commonly used in CNC machine tools, servo systems and other scenarios.

Core features: high resolution (typical value 2048 lines/turn), differential sine wave output (1Vpp), strong anti-interference ability, and support for high-speed rotation detection.

2. ID 385488-52 Meaning

Heidenhain's ID number usually contains information such as interface type, power supply specifications, cable configuration, and production batch. Based on historical data, it is speculated that:

385488: It may represent a specific interface version (such as 5V DC power supply and standard RS422 signal of early models).

52: It may correspond to cable length or connector type (for example, "52" in some models represents a standard 2-meter cable, and the interface is a Heidenhain standard plug).

2. Key parameters (refer to official typical values)

Parameter category Specific specifications

Resolution 2048 lines/turn (incremental, the accuracy can be improved through electronic subdivision).

Output signal - Differential sine wave (1Vpp)

- Compatible with TTL/RS422 level, supports long-line drive (maximum transmission distance 100 meters).

Supply voltage 5V DC ±5% (some early models only support 5V, please note the difference with wide voltage models).

Mechanical specifications - Shaft diameter: 6 mm (stainless steel, with keyway)

- Mounting method: synchronous flange (Ø30 mm) with anti-loosening screws.

Protection level IP64 (dust-proof and splash-proof, suitable for machine tool coolant environment).

Maximum speed 8000 rpm (to ensure signal stability at high-speed rotation).

Temperature range - Operating: -10°C ~ +70°C

- Storage: -25°C ~ +80°C (non-condensing).

Cable/Connector - 2m shielded cable as standard, Heidenhain 12-pin plug (may be 538703-XX)

- Custom extension cables available (need to be ordered in advance).