Description
Note: Many products are not yet listed. Please contact us for more product information. Our supply channels are constantly expanding, and we currently have 20 stable shared supply channels. Please confirm the model, product, price, and all other necessary information with customer service before placing an order. We offer new, refurbished, and used products, and prices are adjusted according to the year of the item you require.
Product Introduction (Anti-Template)
When an aging ABB drive system experiences control-board failure, replacing the complete drive is often unnecessary and economically inefficient. The ABB 3ASC25H203 DAPC 100 is a control board used in ABB DARA series drive systems, providing the central control functions required for compatible ASTAT drive configurations. ABB documentation lists this board as a DAPC 100 control board used in DARA 1000, 1000+AO, 1001, 1010, and 1010+AO systems.
Designed for legacy drive maintenance, this board sits at the center of the control architecture rather than serving as a simple I/O replacement. The exact DAPC version, firmware condition, and associated drive model should be verified before replacement because different DARA configurations may use different controller arrangements.
3ASC25H203
3ASC25H203
3ASC25H203
3ASC25H203
Key Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | ABB |
| Product Number | 3ASC25H203 |
| ABB Type Name | DAPC 100 |
| Product Type | Drive control board |
| System Family | ASTAT / DARA drive systems |
| Main Application | DARA 1000, DARA 1000+AO, DARA 1001, DARA 1010, DARA 1010+AO |
| Board Function | Main control processing |
| Memory Support | CMT memory stick interface (depending on version) |
| Installation | ABB drive cabinet control section |
| Board Category | Control PCB / Drive controller |
| Replacement Type | Legacy spare part |
| Origin | Sweden |
| Condition | New Original / Refurbished |
ABB spare-parts documentation identifies 3ASC25H203 as DAPC 100 Control Board and lists its use in DARA 1000 and related drive platforms.
Field Application & Technical Pitfalls (The Engineer’s Guide)
ABB ASTAT Drive Systems
The DAPC 100 control board is used in ABB DARA drive equipment where it handles core control processing. These systems were commonly applied in industrial motor-drive environments requiring reliable speed and torque regulation.
Legacy Drive Modernization Projects
Many DARA systems remain in service because replacing an entire installed drive package can require cabinet modification, rewiring, engineering validation, and extended downtime. Keeping a tested spare controller board available can reduce recovery time after unexpected failures.
Industrial Maintenance Replacement
The 3ASC25H203 is normally replaced during failures involving drive startup faults, controller errors, or damaged control electronics. The board itself is only one part of the drive chain, so surrounding power modules, I/O boards, and communication interfaces should also be checked.
Pitfall 1 — Confusing DAPC 100 with other ABB control boards:
ABB has many legacy control boards with similar-looking references. Do not select a replacement only by physical appearance. The DAPC type and complete part number must match the installed system.
Pitfall 2 — Ignoring the DARA model compatibility:
The same ASTAT family may contain different hardware configurations. A DAPC100 used in DARA 1000 may not directly replace a controller from another drive family without checking documentation.
Pitfall 3 — Forgetting stored parameters and configuration data:
Some versions support CMT memory stick functions for parameter storage and transfer. Before removing the original board, confirm whether application parameters need to be preserved.
Field lesson: A plant maintenance team once replaced a failed drive controller with a visually identical board from another cabinet. The unit powered up, but the motor control response was abnormal because the configuration data did not match the original drive setup. The lesson is simple: for legacy controllers, hardware matching is only the first step—application data matters too.
Quality Control (QC) SOP & Transparency
- Inbound Verification
- Confirm the ABB marking, part number, and DAPC 100 identification.
- Compare the board label with customer-provided photos or existing equipment records.
- Physical Inspection
- Check PCB condition, connectors, memory socket, components, and mounting points.
- Inspect for corrosion, oxidation, contamination, or unauthorized repairs.
- Revision Verification
- Record all visible hardware revision labels and firmware information.
- Verify compatibility with the customer’s DARA drive model.
- Memory and Configuration Check
- Confirm whether a CMT memory stick or stored parameter information is included.
- Preserve original configuration information where possible.
- Electrical Inspection
- Check connector continuity and visible circuit integrity.
- Verify there are no damaged components or burnt areas.
- Functional Testing
- Where suitable ABB drive test equipment is available, verify controller startup, diagnostic indicators, and communication behavior.
- Final QA Documentation
- Photograph the front and rear PCB.
- Record part number, revision, test results, and physical condition.
- ESD-Safe Packaging
- Use anti-static packaging and protective cushioning to prevent PCB damage during transportation.
Frequently Asked Questions (FAQ)
Q1. What is ABB 3ASC25H203?
ABB 3ASC25H203 is a DAPC 100 control board used in ABB DARA series drive systems.
Q2. Which ABB systems use the 3ASC25H203 board?
ABB documentation lists it for DARA 1000, DARA 1000+AO, DARA 1001, DARA 1010, and DARA 1010+AO systems.
Q3. Is 3ASC25H203 an I/O module?
No. It is a control board. It performs controller functions within the drive system rather than acting as a standalone field I/O expansion module.
Q4. Can I replace any ABB DAPC board with 3ASC25H203?
No. Confirm the complete part number, DARA drive model, hardware revision, and application configuration before replacement.
Q5. Does the board include stored parameters?
This depends on the specific unit condition and configuration. Some DAPC100 versions support CMT memory stick functions for data storage and transfer.
Q6. What should be checked before installation?
Verify:
- Original board part number
- DARA drive model
- Hardware revision
- Connector arrangement
- Parameter backup availability
- Existing fault history
Q7. Is ABB 3ASC25H203 still a current product?
It is considered a legacy ABB drive spare part. Availability usually depends on surplus inventory and refurbishment channels rather than standard new production supply.
Q8. What information should be provided for quotation?
Send the complete part number, clear photos of the board label, the ABB drive model, application details, and whether you require new surplus or refurbished condition.
