1078504-01 ISA 608 SSI Multiturn Data Timing

EncoderWorks develops a custom compatible replacement solution for 1078504-01 ISA 608 focused on maintaining SSI communication behavior, 25-bit multiturn position data consistency, and controller-side signal interpretation. The replacement challenge is not only matching the absolute resolution, but also preserving SSI clock/data timing, signal polarity, and position processing logic required by the existing motion control system. Incorrect SSI timing or data interpretation may allow the controller to receive signals while still producing inaccurate position values.

System Limits

SSI replacement reliability depends on maintaining the relationship between clock signals, data transmission, and position interpretation. The 1078504-01 ISA 608 uses SSI Binary output with 25-bit absolute resolution, including 13-bit singleturn and 12-bit multiturn data. Clock timing, data format, code sequence, and preset behavior must be matched correctly because differences in serial data handling can affect controller position evaluation or commissioning.

The mechanical replacement boundary includes shaft fit, mounting structure, and environmental installation conditions. This model uses a 58 mm housing, Ø10 mm round shaft, and clamping flange mounting structure. Shaft alignment, coupling stability, cable routing, shielding, and grounding continuity should be maintained because mechanical stress or electrical interference can influence long-term feedback accuracy in industrial applications.

Wiring & Installation

SSI integration requires verification of clock, inverted clock, data, inverted data, and control signal connections. The configuration includes separate clock and data lines with additional preset and code sequence functions. Incorrect signal mapping, missing inverted signal connections, or improper cable shielding may result in unstable data transmission or incorrect position reading.

During installation, the radial cable connection and Ø10 mm shaft interface should be matched with the existing machine structure. The replacement process should also consider vibration, shock loading, and environmental protection requirements to maintain stable feedback performance under industrial operating conditions.

Custom Compatible Solution

• Match SSI Binary communication behavior and controller-side serial data interpretation.
• Preserve 25-bit absolute multiturn position structure and code sequence configuration.
• Adapt Ø10 mm shaft and clamping flange mechanical mounting requirements.
• Validate SSI timing, signal wiring, shielding, and grounding conditions.

Typical production lead time: 15 working days.

Key Data