SSI transformation fault or not finished

Was bedeutet 4470 ?

The Synchronous Serial Interface (SSI) transformation performed by the FOX 50 module was either faulty for several NC cycles or failed to complete. This indicates a problem in reading or converting data from SSI encoders, leading to inaccurate or missing position feedback and ultimately affecting axis control.

• Intermittent or complete loss of clock or data signals on the SSI interface due to damaged cabling or improper termination.
• Electrical noise interference on the SSI data lines (Clock+ / Clock-, Data+ / Data-) causing bit errors during transformation by the FOX 50 module.
• Faulty FOX 50 module hardware, specifically its SSI input circuitry or data processing unit, leading to transformation failures.
• Incorrect SSI telegram length or data format configuration (e.g., P8-01, SSI Bits) in the drive, causing misinterpretation of encoder data.
• Excessive cable length for the SSI interface without proper signal boosters or line drivers, leading to signal degradation.

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

1. 1

   1. Perform continuity and insulation tests on the SSI cable (Clock+/-, Data+/- on X5-1 to X5-4) for opens, shorts, or insulation breakdown.

2. 2

   2. Use an oscilloscope to check the SSI Clock and Data signals (e.g., on terminals X5-1 to X5-4) for signal integrity, noise, and correct timing.

3. 3

   3. Swap the FOX 50 module with a known good unit to determine if the hardware module is the source of the transformation fault.

4. 4

   4. Verify the SSI data format parameters (e.g., P8-01, SSI Data Bits; P8-02, SSI Code Type) match the specifications of the connected SSI encoder.

5. 5

   5. Ensure proper grounding of the SSI cable shield (e.g., at terminal X5-GND) and physical separation from power cables to minimize EMI.