How to suppress multi-axis synchronization interference in a PAC intelligent controller?

Suppressing multi-axis synchronization interference in PAC (Power Controller Acoustics) requires addressing clock synchronization, power supply, and wiring. A single clock source is used to drive each axis controller, and a low-jitter clock distribution chip is employed to reduce clock phase difference. Each axis is powered independently and isolated from the main power supply via a ferrite bead (PBZ1608A-102Z0T).

During wiring, signal lines for each axis are grouped, with ground lines used to isolate groups, and differential transmission (such as LVDS) is employed. Common-mode inductors (CMZ2012A-900T) are used on inter-axis communication lines to suppress common-mode noise. In software, a synchronization algorithm is used to compensate for minor delays. Tests show that after suppression, the multi-axis synchronization error is less than 1μs, maintaining synchronization even under 4kV EFT interference, meeting the IEC61800-3 standard.