Description
ABB DSSB-01C 68300746 Control Board
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | ABB |
| ABB Product ID | 68300746 |
| Type Designation | DSSB-01C |
| Product Type | Control unit / PC board kit |
| Functional Role | Main control board for DSU |
| Drive Family | ACS800 |
| Associated Drive | ACS800-07 cabinet-built 6/12-pulse drive |
| DSU Type | Diode Supply Unit |
| Net Weight | Approx. 1.8 kg |
| Minimum Order Quantity | 1 piece |
| Order Multiple | 1 piece |
| Replaced Product ID | 64703919 |
| Customs Tariff | 85049099 |
| Country of Origin Listed | Finland / Estonia |
| Mounting | Internal drive cabinet/control-unit installation |
| Field Signal Type | System-dependent; verify against DSU hardware documentation |
| Supply Voltage | Verify from the installed DSU/control-unit documentation |
| Communication Interfaces | Do not assume from the DSSB-01C designation; verify installed DSU architecture |
| Operating Temperature | Verify against the complete drive/DSU configuration |
ABB’s available product record provides the identification, DSU function, ordering information, and weight, but does not establish a complete standalone electrical specification for the board. Published reseller pages add conflicting generic voltage and interface information, so those values should not be treated as DSSB-01C OEM specifications without the applicable drive manual.
Product Introduction
The ABB DSSB-01C 68300746 is a dedicated control-board assembly for the Diode Supply Unit (DSU) used in compatible ABB ACS800 drive systems. It is not a general-purpose PLC CPU or conventional I/O card. ABB classifies it as a control unit and PC board kit, with the technical description specifically identifying it as the main control board for the DSU unit.
In an ACS800 supply section, the DSU is part of the front-end power architecture that supplies the drive DC link. Consequently, replacing the DSSB-01C is a drive-level maintenance task rather than a simple circuit-board swap. The exact drive type, DSU hardware, board revision, firmware/software relationship, wiring, and parameter set should be checked before commissioning a replacement.
DSSB-01C 68300746
Application Scenarios & Field Pitfalls — The Engineer’s Perspective
Engineering Pain Point
A failed DSU control board can look like a generic control-electronics problem because the visible symptom may be a drive supply fault, DC-link charging issue, or failure to establish normal drive operation. The , however, belongs specifically to the DSU control architecture. ABB’s product records associate the part with ACS800-07 cabinet-built 6/12-pulse drives and identify specific ACS800-07 models in its spare-part usage list.
Typical Applications
- -07 cabinet-built drives: Replacement of the DSU control board in compatible cabinet-built drive configurations.
- Diode Supply Units: Maintenance of the control electronics associated with the rectifier supply section.
- Drive overhaul projects: Replacement of a failed or degraded PC board kit during planned maintenance.
- Legacy service: Maintaining installed drive systems where the original assembly is no longer readily available as a routine field component.
Technical Pitfalls to Avoid
- Do not classify as a generic inverter control board.
ABB specifically describes 68300746 as the main control board for the DSU unit. Its correct system context is the supply section, not the motor-control inverter stage. - Verify the exact drive model before substitution.
ABB’s spare-parts record lists the against specific -07 models, including 0610-3, 0750-6, 0760-5, 0770-3, 0870-3, 0870-6, and 0910-5. A board that has the same physical appearance should not automatically be assumed compatible with another supply configuration. - Check the old product ID when replacing legacy hardware.
ABB lists 64703919 as the replaced product ID for 68300746. If the existing board carries the older number, document the complete drive and DSU configuration before ordering the replacement. - Do not rely on generic reseller electrical specifications.
Some secondary listings attribute specific DC input ranges, power consumption, protection circuits, and interfaces to . Those details are not established by the ABB product record reviewed here and should not be copied into a commissioning specification without the relevant ABB DSU manual. - Back up drive parameters before board replacement.
Before removing the original control board, record the drive type code, parameter backup, fault history, board identification, firmware information where available, and relevant DSU configuration data. - Inspect the complete supply section after a board failure.
A control-board failure can be secondary to a power-supply, rectifier, DC-link, grounding, or wiring problem. Replacing the board without identifying the original failure mechanism can result in another board failure after energization.
Related Products
- 64703919 — Earlier ABB product ID listed by ABB as the replaced product for 68300746. Verify the actual board marking before using it as a replacement reference.
- -07-0610-3 cabinet-built drive model listed in ABB’s spare-part usage information.
- -0750-6 — Another docum application for the .
- -0760-5 — Compatible drive model listed in the ABB spare-parts record.
- -0770-3 — Another cabinet-built drive model associated with the board.
- -0870-3 — L application; verify the exact supply configuration before substitution.
- -0870-6 — Listed in ABB’s documented usage information.
- -0910-5 — Another docum application for the .
Procurement Note
For a replacement, specify ABB , Product ID 68300746 rather than ordering only by the generic description ” control board.” Confirm the existing board number, old product ID if applicable, drive type code, DSU configuration, hardware revision, and board markings against the cabinet documentation.
The most important procurement distinction is that 68300746 is a DSU control board, not a universal inverter-control replacement. ABB’s own record identifies it as a PC board kit for the DSU and documents its use with spe configurations.
