Description
Product Overview
The ABB LDSYN-101 3BHE005555R0101 is an application-specific synchronization board used in ABB medium-voltage drive equipment. ABB product data identifies the part as “VOLTAGE ME LD SYN-01; SYNCH.,” while ABB’s ACS2000 spare-parts documentation lists the same part number as a Sync Board within the drive’s filter assembly. This manufacturer documentation provides a more reliable functional identification than generic reseller descriptions that classify the board as a universal control or power-supply module.
For maintenance teams, the distinction matters: the LDSYN-101 should be evaluated as a dedicated board within the specified drive architecture. The available documentation supports its synchronization-board role, but does not establish a complete standalone specification for signal ranges, connector pin assignments, or adjustment procedures. Those details should be taken from the applicable ACS2000 documentation and the installed board revision before replacement or commissioning.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product model | LDSYN-101 |
| ABB part number | 3BHE005555R0101 |
| Manufacturer | ABB |
| Product type | Synchronization printed circuit board |
| Catalog designation | VOLTAGE ME LD SYN-01; SYNCH. |
| Associated equipment | ABB ACS2000 medium-voltage drive |
| Assembly location | Drive filter assembly, according to ABB spare-parts documentation |
| Main function | Synchronization-related circuitry |
| Input signal range | Not independently verified |
| Supply voltage | Not independently verified for the board itself |
| Communication interfaces | Not independently verified |
| Dimensions and weight | Confirm against the physical board and shipping documentation |
| Operating temperature | Not independently verified |
| Firmware requirements | Not independently verified |
Major Features and Advantages
Dedicated synchronization function
The LDSYN-101 3BHE005555R0101 is identified by ABB as a synchronization board. Its role is tied to the intended drive hardware rather than general-purpose signal acquisition or programmable logic. Correct identification is therefore essential when troubleshooting synchronization-related faults in the associated equipment.
LDSYN-101 3BHE005555R0101
Integration within the ACS2000 assembly
ABB’s spare-parts documentation places this board in the ACS2000 filter assembly alongside components such as the high-voltage relay, IGBT power-supply board, optical-electrical interface board, and high-voltage divider board. This context helps maintenance engineers locate the component in the equipment architecture.
Targeted replacement of legacy drive hardware
When an installed board fails, replacing it with the exact part number can reduce the need for unnecessary cabinet modifications. However, the part number alone does not establish that every board revision is interchangeable. Confirm the equipment model, installed revision, connectors, and relevant technical documentation before approving a replacement.
Clear separation of verified and unverified data
Some third-party listings provide conflicting specifications for this model, including generic voltage ratings, communication protocols, and environmental limits. These values should not be treated as confirmed ABB specifications without documentation matching LDSYN-101 3BHE005555R0101.
Typical Applications
The documented application context is ABB ACS2000 medium-voltage drive equipment. Relevant maintenance activities include:
- Replacement of a failed synchronization board
- Repair of the associated drive filter assembly
- Troubleshooting of drive synchronization-related faults
- Spare-parts planning for existing ABB medium-voltage drive installations
These applications reflect the documented equipment association; the board should not be assumed suitable for unrelated ABB drive families without confirmation.
Related Products
The following components are listed alongside 3BHE005555R0101 in ABB filter-assembly documentation:
- 3BHB024326R0001 — filter assembly
- 2UEA001352 — IFU capacitor
- 2UEA000967 — high-voltage relay
- 3BHE020959R0127 — IGBT power-supply board
- 3BHE006373R0101 — optical-electrical interface board
- 3BHE032285R0102 — high-voltage divider board
These are associated assembly components, not direct substitutes for the LDSYN-101.
Installation and Maintenance
- Confirm the identification: Check the complete part number 3BHE005555R0101, model designation, and board revision.
- Verify the equipment: Confirm that the installed drive and assembly documentation call for this synchronization board.
- Inspect the board: Check connectors, circuit-board damage, corrosion, and signs of overheating.
- Follow drive isolation procedures: Medium-voltage drive cabinets can contain hazardous voltages and stored energy. Work must follow the manufacturer’s procedures and site electrical-safety requirements.
- Verify connections: Record connector positions and wiring before removal. Do not rely on physical fit alone to establish correct pin assignments.
- Commission under an approved procedure: Complete the specified checks and functional tests before returning the drive to service.
Product Assurance
For the ABB 3BHE005555R0101, verify the part number, revision, physical condition, and test documentation before purchase. For used or refurbished boards, request evidence of inspection and functional testing. A visual inspection or power-on test alone does not establish correct synchronization behavior.
Procurement note: ABB documentation identifies this part as a synchronization board associated with the filter assembly. Confirm the installed drive model and exact board revision before approving a replacement; do not rely on generic specifications copied across unrelated industrial modules.
