ABB 3BHE005555R0101 Printed Circuit Board

ABB 3BHE005555R0101, also cataloged as LDSYN-101 or LD SYN-01, is a synchronous voltage measurement board—a printed circuit board that serves as the Sync Board in ABB’s ACS 2000 4 kV drive systems. Some listings describe the LDSYN-101 as a high-precision voltage measurement board, reflecting its role in delivering accurate timing and voltage sensing across the drive controller network. In ABB spare-part catalogs it is explicitly listed as the Sync Board (LD SYN-01) for high-voltage drives, with the 3BHE005555R0101 designation used in multiple listings. The module is designed to integrate with the drive controller stack and coordinates synchronization signals among connected I/O and interface boards to support proper synchronous operation of the motor control system. Typical use is in service or replacement of ABB ACS 2000 4KV drives where SYN-01 functionality is required; before purchasing, confirm that your equipment uses the Synch (SYN-01) variant and that the drive model matches the 3BHE005555R0101/LDSYN-101 family for compatibility.