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　　Other names for ROD700-18000:

　　Encoder ROD700-18000

　　ROD700-18000 Separator

　　Product Positioning and Technical Background

　　The ROD700-18000 is a high-precision angle encoder launched by HEIDENHAIN GmbH, Germany. It belongs to the professional model of their rotary encoder product line. Based on the photoelectric scanning principle and combined with an internal bearing and stator coupling design, this product features high resolution, high repeatability, and strong anti-interference capabilities. It is widely used in high-precision industrial applications such as machine tool rotary tables, C-axis control, gear testing machines, printing press rotary units, and astronomical telescopes, meeting the requirements for arcsecond-level angle measurement. Key Technical Specifications

　　Measurement Range and Accuracy

　　Signal Cycle/Resolution: 18,000 signal cycles/revolution (corresponding to 18,000 lines), supporting higher resolution expansion (e.g., 36,000-line version).

　　System Accuracy: ±2" (arcseconds), position error ≤ ±0.7" per signal cycle, high-precision models can reach ±1" or higher.

　　Interface Type: 1 VPP differential signal output, compatible with industrial protocols such as EnDat 2.2 and Fanuc serial interface, supporting bidirectional serial communication.

　　Dynamic Performance: Permissible mechanical speed ≤ 1,000 rpm, electrical response frequency up to 180 kHz, meeting the requirements of high-speed rotation applications.

　　Mechanical Characteristics

　　Structural Design: Built-in bearings, using diaphragm couplings or flat couplings to connect the drive shaft, compensating for axial movement and eccentricity errors.

　　Mounting Method: Flange mounting, equipped with a center positioning ring, supports DIN rail or modular stacking.

　　Electrical Parameters: 5V±0.5V DC power supply, power consumption ≤ 150mA, cable length up to 150m (shielded).

　　Environmental Adaptability: Operating temperature -20℃~+85℃, protection rating IP65 (dustproof and splashproof), electromagnetic interference (EMC) compliant with IEC. Standard 61000.

　　Electrical and Interface Specifications

　　Communication Protocols: Supports industrial buses such as EnDat 2.2, PROFINET, PROFIBUS-DP, and SSI, compatible with mainstream PLC and CNC systems.

　　Signal Types: Sine/cosine signals (1Vpp), TTL/HTL levels, with optional differential output for enhanced anti-interference capabilities.

　　Power Supply: 3.6～14V DC or 5V DC power supply, adaptable to the power supply requirements of various control systems.

　　Environmental Adaptability

　　Operating Temperature: -20℃～+85℃, meeting industrial-grade wide temperature requirements.

　　Protection Rating: IP65/IP67 (some models), suitable for harsh environments such as cutting fluid splashes and dust.

　　Application Scenarios and Cases

　　Machine Tool Industry: Used for rotary axes (such as the C-axis) and rotary table position feedback in five-axis machining centers, improving machining accuracy and repeatability.

　　Automation Equipment: Enables precise angle control and closed-loop adjustment in semiconductor equipment, printing presses, and textile machinery.

　　Metrology and Testing: Applied to gear testing machines, spectrometers, and astronomical telescopes for azimuth angle measurement, ensuring nanometer-level accuracy.

　　Industrial Internet of Things: Connects to smart factory networks via EtherCAT/PROFINET interfaces, supporting remote status monitoring and predictive maintenance.

　　Scientific Research Field: Astronomical telescopes, satellites... Achieve high-precision angle tracking in star attitude control systems.

　　Function Expansion

　　Reference Markers: Supports distance-encoded reference points for rapid homing and position calibration.

　　Fault Diagnosis: Built-in condition monitoring circuitry identifies anomalies such as signal deviations and bearing wear, providing feedback via LED indicators or a serial interface.

　　Compatibility: Adapts to mainstream PLC and CNC systems from Siemens, Bosch Rexroth, and ABB, supporting multi-module networking and remote diagnostics.

　　Competitive Advantages and Industry Recognition

　　Brand Advantage: Heidenhain, a global leader in precision measurement, is renowned for its encoders' high reliability and long lifespan (MTBF > 500,000 hours), widely used in high-end fields such as aerospace and automotive manufacturing.

　　Technology Compatibility: Modular design supports seamless integration with mainstream control systems from Siemens, Fanuc, Mitsubishi, etc., reducing integration costs.

　　Certifications and Standards: Complies with CE, UL, and ISO standards. Certified by ISO 9001 and other international standards, meeting precision measurement standards such as ISO 230-2 and VDI/VDE 2617.

　　Selection Recommendations and Precautions

　　Compatibility Verification: Confirm the compatibility of the module with existing systems (such as PLCs and drives) in terms of communication protocols, signal types, and voltage levels.

　　Environmental Adaptability: In high-temperature, high-humidity, and high-vibration environments, evaluate the protection rating (e.g., IP67) and heat dissipation design.

　　Installation Accuracy: The alignment error of the coupling must be controlled within ±0.1mm to avoid affecting system accuracy.

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