APC ALARM: COMMUNICATION ERROR

What does SV0301 mean?

The absolute-position detector experienced a data transfer communication error, preventing the system from obtaining the correct machine position. This issue is typically caused by a defect in the absolute-position detector, its connecting cable, or the servo interface module.

• Physical disconnection of the APC communication cable.
• Data corruption during transmission from the APC.
• Faulty APC encoder unit.
• Incorrect serial communication settings (e.g., baud rate, parity).

Click steps to track your progress.

1. 1

   Inspect the APC encoder cable for damage and ensure secure connection.

2. 2

   Verify communication parameters (e.g., P8-XX series) match APC specifications.

3. 3

   Measure signal integrity on APC communication lines.

4. 4

   Test APC encoder output signals if diagnostic tools are available.