1. Introduction
This manual provides essential information for the proper installation, operation, and maintenance of the Tamagawa TS6014N135 and TS6014N138 Rotary Transformers (Resolvers). These devices are designed for precise angular position and velocity sensing in various industrial applications. Please read this manual thoroughly before installation and use.

2. Setup and Installation
Proper installation is crucial for the accurate and reliable performance of the rotary transformer. It is recommended that installation be performed by qualified personnel.
2.1 Mechanical Installation
- Mounting: Securely mount the rotary transformer using the designated mounting points. Ensure the mounting surface is flat and stable to prevent vibration.
- Shaft Alignment: Carefully align the rotary transformer's shaft with the rotating component it will monitor. Misalignment can lead to premature wear and inaccurate readings. The main body size is an outer diameter of φ52.4mm with an aperture of φ12.7mm.
- Environmental Considerations: Ensure the installation environment is within the specified operating temperature range (-55°C to +155°C) and free from excessive moisture, dust, or corrosive substances.
2.2 Electrical Connections
The rotary transformer features a multi-wire cable for electrical connections. Refer to the specific wiring diagram for your model (TS6014N135 or TS6014N138) for correct pin assignments. Incorrect wiring can damage the device or connected equipment.
- Input Voltage: The device operates with an input voltage of A07Vrms at 10KHz.
- Output Type: The output is reverse phase.
- Primary Connections: R1-R2.
For complex installations or motor debugging, specialized guidance may be required. Please consult technical support if needed.

3. Operating Principles
The Tamagawa Rotary Transformer (Resolver) converts the angular position of its shaft into an electrical signal. It functions as an analog absolute position sensor, providing continuous feedback on rotation. Unlike incremental encoders, resolvers provide absolute position information within one revolution, even after power loss.
Once correctly installed and powered, the device continuously outputs signals proportional to the sine and cosine of the shaft's angle, which can then be processed by a Resolver-to-Digital (R/D) converter to determine the precise angular position.
4. Maintenance
The Tamagawa Rotary Transformer is designed for robust and long-term operation with minimal maintenance. However, periodic checks can help ensure optimal performance and longevity.
- Inspection: Regularly inspect the device for any signs of physical damage, loose connections, or excessive wear.
- Cleaning: Keep the exterior of the unit clean and free from dust, oil, or other contaminants. Use a soft, dry cloth for cleaning. Avoid using harsh chemicals or solvents.
- Cable Integrity: Check the integrity of the connecting cables. Ensure they are not pinched, frayed, or exposed to excessive strain.
- Environmental Monitoring: Verify that the operating environment remains within the specified conditions (temperature, humidity, vibration).
No user-serviceable parts are inside the sealed unit. Any internal issues should be addressed by qualified service personnel.
5. Troubleshooting
If the rotary transformer is not functioning as expected, consider the following common issues and their potential solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No output signal | No power supply; incorrect wiring; damaged cable; internal fault. | Check power connections; verify wiring against diagram; inspect cable for damage; contact technical support. |
| Inaccurate or unstable readings | Shaft misalignment; electrical noise/interference; faulty R/D converter; internal fault. | Re-check shaft alignment; ensure proper grounding and shielding; test with a known good R/D converter; contact technical support. |
| Intermittent signal | Loose connections; damaged cable; vibration; temperature fluctuations. | Secure all connections; inspect cable; reduce vibration; ensure operating temperature is stable. |
For issues that cannot be resolved with the above steps, please contact our after-sales maintenance service.
6. Specifications
The following table details the technical specifications for the Tamagawa TS6014N135 and TS6014N138 Rotary Transformers (Resolvers):

| Parameter | Value |
|---|---|
| Product Name | Split-type Built-in Rotary Transformer |
| Type | BRX |
| Main Body Size | Outer diameter φ52.4mm, Aperture φ12.7mm |
| Output Type | Reverse Phase |
| Primary | R1-R2 |
| Input Voltage | A07Vrms 10KHz |
| Invalid Voltage | 20mVrms Max |
| Operating Temperature | -55°C ~ +155°C |
| Phase Difference | +10° Nom |
| Electrical Error | ±10 Max |
7. Warranty and Support
This Tamagawa Rotary Transformer comes with a one-year warranty from the date of purchase, covering manufacturing defects. For technical assistance, installation guidance, or after-sales maintenance, please contact our support team. We offer technical support for our original products.
For complex models or specific motor debugging requirements, specialized service may be available, potentially incurring guidance fees. Please inquire with our customer service for details.

8. User Tips
- Always ensure the power supply is stable and within the specified voltage range to prevent damage.
- When connecting, double-check all wiring against the provided diagrams to avoid misconnections.
- Protect the device from strong electromagnetic interference, which can affect signal accuracy.
- For applications requiring extreme precision, consider using shielded cables and proper grounding techniques.