For applications using 826252-01 RHA 507, EncoderWorks provides a custom compatible replacement solution focused on maintaining SSI Gray communication behavior, axial cable integration, and Ø14 mm blind hollow shaft mechanical compatibility. The replacement challenge is not only matching the 13-bit absolute position output, but also preserving SSI clock/data timing, signal interpretation, and stator coupling conditions required by the existing control system. SSI communication can remain active while incorrect timing, signal mapping, 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 826252-01 RHA 507 uses SSI Gray output with 13-bit singleturn resolution. Clock timing, inverted clock/data signals, hold function, code sequence direction, and controller-side data interpretation must be matched because differences in SSI processing can result in incorrect position values or additional commissioning adjustments.
The mechanical integration boundary includes hollow shaft fit, stator coupling, and cable installation conditions. This model uses a Ø14 mm blind hollow shaft with a 58/59 flange and stator coupling structure, together with an axial cable connection. Shaft engagement, coupling alignment, cable routing, shielding, and grounding continuity should be maintained because mechanical mismatch or electrical interference can affect long-term feedback reliability.
Wiring & Installation
SSI integration requires verification of clock, inverted clock, data, inverted data, hold, code sequence, power supply, and shield connections. The configuration uses dedicated SSI signal wiring through the axial cable connection. Incorrect signal mapping, missing inverted signal connections, poor shielding continuity, or improper grounding may result in unstable serial communication or inaccurate position evaluation.
During replacement installation, the Ø14 mm blind hollow shaft and stator coupling interface should be checked against the existing machine structure. The axial cable outlet, mounting stability, vibration conditions, and environmental protection requirements 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 code sequence configuration.
- Adapt Ø14 mm blind hollow shaft, 58/59 flange with stator coupling, and axial cable installation requirements.
- Validate SSI timing, signal mapping, shielding, and grounding conditions.
Typical production lead time: 15 working days.
Key Data
| Parameter | Specification |
|---|---|
| Model | 826252-01 RHA 507 |
| Encoder Type | Absolute Singleturn Encoder |
| Interface | SSI Gray |
| Resolution | 13 bit Singleturn |
| Output Format | Gray Code |
| Shaft Type | Ø14 mm Blind Hollow Shaft |
| Flange Type | 58/59 Flange with Stator Coupling |
| Connection | Axial Cable |
| Cable Length | 1.5 m |
| Supply Voltage | 9–36 VDC |
| Protection | IP67 / IP66 |
| Main Replacement Focus | SSI timing compatibility, axial cable integration, and hollow shaft adaptation |

