Description
ABB LDSYN-101 3BHE005555R0101 Sync Board
Product Overview
Synchronization problems in industrial control equipment are often difficult to isolate because the affected board may sit between timing, control, and power-related functions rather than acting as a conventional PLC I/O card. ABB LDSYN-101 3BHE005555R0101 is identified in available equipment records as an ABB Sync Board, with the part number repeatedly associated with the LDSYN-101 designation. Product records also place the board within ABB Procontrol-related equipment.
For maintenance and procurement teams, ABB LDSYN-101 3BHE005555R0101 should therefore be treated as a system-specific synchronization board rather than a generic analog input, digital output, communication, or power module. That distinction matters when selecting a spare: several secondary listings describe the same part as an I/O module, power module, or general control module, but those descriptions are not supported consistently by the available evidence.
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | ABB |
| Product Model | LDSYN-101 |
| ABB Part Number | 3BHE005555R0101 |
| Product Type | Sync Board / Synchronization Board |
| Primary Function | System synchronization |
| Product Family / Association | ABB Procontrol-related equipment |
| Board Construction | Application-specific electronic PCB |
| Intended Application | Industrial control / power-control equipment |
| General PLC I/O Classification | Not established |
| General Power-Supply Classification | Not established |
| Communication Interface | Not reliably verified |
| Working Voltage | Not reliably verified |
| I/O Channel Count | Not reliably verified |
| Operating Temperature | Not reliably verified |
| Dimensions | Secondary records vary; verify against physical board |
| Weight | Secondary records vary; verify before shipping calculations |
Engineering note: Some online listings claim 24 VDC operation, Ethernet, PROFIBUS, EtherCAT, analog I/O, or specific environmental ratings. Those figures appear to originate from generic or copied product descriptions and should not be treated as confirmed specifications for LDSYN-101.
Application Scenarios & Field Considerations
ABB Procontrol Equipment
The strongest product records associate with ABB Procontrol equipment and describe it specifically as a Sync Board.
LDSYN-101 3BHE005555R0101
Synchronization Functions
A synchronization board is normally concerned with maintaining or distributing timing/reference relationships between related control functions. In a plant troubleshooting situation, this means a failure may appear as an interaction or synchronization problem rather than a simple loss of one PLC input or output.
Legacy Control-System Maintenance
The 3BHE005555R0101 identifier is particularly important when sourcing an older ABB board. A visually similar ABB PCB does not establish interchangeability. The original system cabinet, board revision, connector arrangement, and associated control hardware should all be checked.
Spare-Part Replacement
For procurement, retain both identifiers:
3BHE005555R0101
Do not purchase against the shortened designation alone when the full ABB material number is available.
Related Products
The following ABB part numbers appear in the same product-record ecosystem, but they should not be assumed to be direct substitutes:
- 3BHE006373R0101 / XV C769 AE101 — ABB electronic board associated with the same broader product ecosystem.
- 3BHE006412R0101 / UF C762 AE101 — ABB board-level component; verify system function before substitution.
- 3BHE009017R0101 / XV C724 BE101 — ABB board associated with related drive/control equipment.
- NAMC-11 3BSE015488R1 — ABB control electronics; different identification and function.
- NPCT-01C — ABB drive/control-related board family; not established as a substitute for .
- NPOW-42C — ABB power-related module; functionally different from the Sync Board.
- LDSTA-01 — ABB LD-series board designation appearing in related equipment records.
These associations are useful for system-level research, but none should be treated as a drop-in replacement for 3BHE005555R0101 without ABB documentation and cabinet-level verification.
Engineer’s Guide — Field Pitfalls to Avoid
1. Do not classify it from the part-number suffix alone.
indicates a specific board designation, but it does not provide enough information to infer supply voltage, communications, or I/O architecture.
2. Do not confuse a sync board with a power module.
Several secondary websites call 3BHE005555R0101 a power module. That classification conflicts with the stronger repeated identification of as a Sync Board.
3. Do not assume generic 24 VDC operation.
A 24 VDC specification appears on some reseller pages, but it is not sufficiently supported to publish as a confirmed engineering parameter.
4. Match the hardware revision.
For an older ABB control system, revision differences can matter even when the basic designation is unchanged. Record the complete board label before ordering.
5. Photograph the connectors before replacement.
This is a simple field-control measure. Connector position, cable routing, board jumpers, and neighboring boards can provide information that a generic catalog description does not.
6. Do not assume unrelated ABB boards are alternatives.
ABB has many board families with similar physical formats. Electrical compatibility and system firmware/configuration must be established separately.
FAQ
What is ABB 3BHE005555R0101?
It is an ABB , identified in available product records as a synchronization board associated with ABB Procontrol-related equipment.
Is a PLC I/O module?
It should not currently be classified as a conventional PLC I/O module. Although some secondary listings call it an intelligent I/O or control module, the more consistent product identification is Sync Board.
Is 3BHE005555R0101 a power supply module?
The available evidence does not support that as the primary classification. Some reseller pages describe it as a power module, but other records explicitly identify 3BHE005555R0101 / as a Sync Board.
What voltage does the ABB require?
I would not publish a voltage value as confirmed without the applicable ABB technical documentation or the electrical information from the actual board. Online sources provide conflicting specifications.
Does use Ethernet or PROFIBUS?
I found no sufficiently reliable evidence to confirm a particular communication interface for this exact board. Claims of Ethernet, PROFIBUS, EtherCAT, and other interfaces on reseller pages should be treated as unverified.
How should I order a replacement?
Use the complete identifier ABB , 3BHE005555R0101. Also provide the board revision, equipment type, cabinet/system designation, and photographs of the original board when possible.
Can another ABB board replace ?
Not based on model similarity alone. The replacement must be validated against the original ABB system architecture, board revision, connectors, firmware/configuration, and synchronization function.
