803859-01 RHA 608 SSI HTL Connector Integration

For systems using 803859-01 RHA 608, EncoderWorks provides a custom compatible replacement solution focused on maintaining SSI Gray multiturn communication, incremental HTL feedback integration, and M23 connector compatibility. The replacement challenge is not only matching the 25-bit absolute position output, but also preserving the combined SSI and incremental signal structure, connector pin mapping, and controller-side feedback interpretation. A system may receive absolute data correctly while differences in incremental feedback or wiring configuration still affect machine synchronization.

System Limits

The primary replacement boundary for this model is maintaining consistency between absolute and incremental feedback channels. The 803859-01 RHA 608 uses SSI Gray output with 25-bit absolute resolution, consisting of 13-bit singleturn and 12-bit multiturn data, together with 1024 PPR HTL incremental signals. SSI clock/data timing, Gray code interpretation, S00/S90 phase signals, code sequence direction, and controller input compatibility must be matched because differences between feedback channels can result in position deviation or commissioning difficulties.

The mechanical integration boundary includes hollow shaft fit, stator coupling, and connector installation. This model uses a Ø12 mm blind hollow shaft with a 58/59 flange and stator coupling structure, together with a radial M23 17-pin connector. Shaft engagement, coupling alignment, connector orientation, cable routing, shielding, and grounding continuity should be maintained because mechanical mismatch or electrical interference can affect long-term feedback reliability.

Wiring & Installation

The hybrid interface requires verification of SSI clock, clock inverted, data, data inverted, incremental S00/S90 signals, preset, code sequence, status, power supply, and 0 Volt connections. The configuration combines serial absolute feedback and HTL incremental signals through an M23 connector, so incorrect pin mapping, missing complementary signals, poor shielding, or improper grounding may result in unstable feedback or incorrect controller response.

During replacement installation, the Ø12 mm blind hollow shaft and stator coupling interface should be checked against the existing machine structure. The M23 connector installation, cable routing, vibration conditions, signal separation, and grounding method should be considered together because combined SSI and HTL feedback systems require stable electrical integration.

Custom Compatible Solution

• Match SSI Gray multiturn communication behavior and controller-side absolute position interpretation.
• Preserve 25-bit absolute resolution structure and 1024 PPR HTL incremental feedback signals.
• Adapt Ø12 mm blind hollow shaft, 58/59 flange with stator coupling, and M23 connector requirements.
• Validate SSI timing, HTL signal mapping, preset/code sequence functions, shielding, and grounding conditions.

Typical production lead time: 15 working days.

Key Data