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Key Technical Specifications
- Manufacturer: ABB / Motorola
- Model: DSQC501
- Motorola Part Number: 01-W2928E 01B
- ABB Type Number: 3HAC3617-1/022
- System Compatibility: ABB S4C+ controller family
- Function: Backplane board / controller interface
- Application: Industrial robot control cabinet
- Condition: Surplus, typically used or removed from service
- Availability: Limited; some listings show in stock, others out of
Product Introduction
ABB DSQC501 01-W2928E 01B is a backplane board used in ABB S4C+ controller systems. It carries ABB type number 3HAC3617-1/022 and Motorola part number 01-W2928E 01B, so buyers usually search by all three identifiers.
This part is typically sourced as surplus for robot controller repair or cabinet restoration. It is a good fit when the original board must match existing hardware exactly, since controller-side compatibility matters more than generic form factor.
Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| Controller will not boot | Backplane board fault or poor seating | ✅ High | Power down, reseat board, inspect connectors and bent pins | Replace if physical damage or boot failure follows the board |
| Intermittent axis or I/O errors | Loose backplane connection | ✅ High | Check rack connector alignment and locking hardware | Reseat and retest before ordering another board |
| No communication with robot controller | Main controller or backplane path failure | ✅ Medium | Measure supply rails and check controller LEDs first | Verify upstream power and CPU status before replacement |
| Random resets during operation | Power instability or backplane contamination | ✅ Medium | Measure 24 V DC input, inspect for corrosion, test under load | Clean, verify power, then replace if issue stays with board |
| Board gets unusually hot | Internal component failure or overload | ✅ High | Use thermal check after power-up; compare against known-good unit | Pull from service and replace if overheating repeats |
| Physical damage or burn marks | Electrical fault or prior failure event | ✅ High | Visual inspection under bright light, check for charred areas | Do not reinstall; replace immediately |
If you are stuck, contact technical support with photos of the board, controller LEDs, and any alarm logs.
- DSQC501 01-W2928E 01B
Frequently Asked Questions
Q: Is DSQC501 01-W2928E 01B a direct replacement?
A: Usually yes, but only if your existing ABB S4C+ controller expects the same ABB type and Motorola part revision. I would not assume interchangeability across similar DSQC numbers without checking the exact cabinet build and documentation.
Q: Is this part new or used?
A: This model is typically sold as surplus or used stock, not factory new. That is normal for older ABB robot control parts, and pricing is usually lower because supply is limited and the part is obsolete.
Q: Can I install it hot?
A: No. Power down first. These backplane parts are not something you swap casually under live power unless the OEM manual explicitly allows it.
Q: Will this fix a controller that will not boot?
A: Maybe, but not automatically. A bad power supply, CPU issue, or connector problem can look the same. Check the supply rails, reseat the board, and confirm the fault follows the part before replacing it.
Q: Do you keep program data after replacement?
A: This board itself is not where you would expect user program retention. If you are worried about configuration loss, back up the controller data before any hardware swap.
Q: Why is this cheaper than OEM factory stock?
A: Because it is usually surplus, pulled from service, or tested used stock. The lower price reflects availability, not a lower controller grade.
Q: What should I verify before ordering?
A: Match the ABB type number, Motorola part number, controller family, and the physical board revision. A small mismatch here can stop the system from booting or communicating correctly.
