EncoderWorks provides a custom compatible replacement solution for 771600-01 RSA 507 focused on maintaining SSI Gray communication behavior, Ø6 mm shaft adaptation, and axial cable installation compatibility. The replacement challenge is not only matching the 13-bit absolute position output, but also preserving SSI clock/data timing, 5 VDC interface requirements, and flange mounting conditions required by the existing control system. SSI communication may remain active while incorrect timing, voltage compatibility, or mechanical adaptation still affects position accuracy.
System Limits
SSI replacement reliability depends on maintaining consistent serial communication between the encoder and the controller. The 771600-01 RSA 507 uses SSI Gray output with 13-bit singleturn resolution and a 5 VDC supply configuration. Clock timing, inverted clock/data signals, hold function, code sequence direction, and Gray code interpretation must be matched because differences in serial data processing can result in incorrect position values or additional commissioning adjustments.


The mechanical integration boundary includes shaft fit, flange mounting, and axial cable installation stability. This model uses a Ø6 mm round shaft with a 51-flange mounting structure, together with a 1.5 m axial cable connection. Shaft alignment, flange positioning, cable routing, shielding, and grounding continuity should be maintained because mechanical mismatch or electrical interference can affect long-term position feedback reliability.
Wiring & Installation
SSI integration requires verification of clock, inverted clock, data, inverted data, hold, code sequence, power supply, and chassis shield connections. The configuration uses dedicated SSI signal wiring through the axial cable connection. Incorrect signal mapping, unsuitable voltage levels, poor shielding continuity, or improper grounding may result in unstable serial communication or inaccurate position evaluation.
During replacement installation, the Ø6 mm round shaft and 51-flange interface should be checked against the existing machine structure. The axial cable outlet, shaft alignment, mounting stability, and vibration conditions should be considered together to maintain reliable SSI feedback performance in industrial applications.
Custom Compatible Solution
- Match SSI Gray communication behavior and controller-side serial data interpretation.
- Preserve 13-bit singleturn position structure and 5 VDC interface requirements.
- Adapt Ø6 mm round shaft and 51-flange axial cable mounting requirements.
- Validate SSI timing, signal mapping, voltage compatibility, shielding, and grounding conditions.
Typical production lead time: 15 working days.
Key Data
| Parameter | Specification |
|---|---|
| Model | 771600-01 RSA 507 |
| Encoder Type | Absolute Singleturn Encoder |
| Interface | SSI Gray |
| Resolution | 13 bit Singleturn |
| Output Format | Gray Code |
| Supply Voltage | 5 VDC |
| Shaft Type | Ø6 mm Round Shaft |
| Flange Type | 51-Flange |
| Connection | Axial Cable |
| Cable Length | 1.5 m |
| Protection | IP67 / IP66 |
| Main Replacement Focus | SSI timing compatibility, 5 VDC interface matching, and shaft adaptation |

