WhatsApp: +86 16626708626
Email: 
Phone: +86 16626708626Description
Key Technical Specifications
- Power Supply: 24 V DC nominal (19.2–30 V DC range)
- Power Consumption: 50 mA typical (70 mA max)
- Power Dissipation: 1.2 W typical
- Operating Temperature: 0 to +55 °C
- Storage Temperature: -40 to +70 °C
- Relative Humidity: 5–95%, non-condensing
- Protection Class: IP20
- Hot Swap: Supported
- Redundancy: Yes
- Dimensions (W x H x D): 59 mm x 185 mm x 127.5 mm
- Weight: Approx. 1.55 kg (including base)
- Package Contents: 2x BC810 units, 2x TP857 baseplates, TK851 cable, 2x TB850 terminators
Product Introduction The ABB BC810K02 (3BSE031155R1) is a CEX-bus interconnection unit for the AC800M controller family. It provides the physical and logical link between controllers in redundant setups or extends the CEX bus across multiple racks in distributed control systems.
In field deployments of AC800M systems, this unit delivers reliable high-speed communication between primary and backup CPUs while supporting hot swap for minimal downtime during maintenance. Engineers select it for its straightforward integration, verified performance under load, and compatibility with existing AC800M installations where bus extension or redundancy is required.
- BC810K02 3BSE031155R1
- BC810K02 3BSE031155R1
Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| No communication between redundant controllers | CEX bus link failure | ✅ High | Verify TK851 cable connection and TB850 terminators; check LEDs on BC810 units | Inspect/replace interconnection cable first |
| Intermittent comms loss after hot swap | Improper seating or ESD event | ✅ High | Confirm module fully seated in baseplate; check for bent pins | Power cycle rack and retest; use grounded wrist strap for handling |
| ERR or diagnostic fault on CPU | CEX bus termination missing | ✅ Medium | Verify both ends have TB850 terminators installed | Install missing terminator; retest bus integrity |
| No power LEDs on BC810 | Power supply issue to unit | ❌ Low | Measure 24 V DC at L+ / L- terminals with multimeter | Check upstream power supply and fuses before replacing unit |
| Bus not recognized after rack addition | Configuration or firmware mismatch | ✅ Medium | Check Control Builder diagnostics for CEX bus status | Confirm matching firmware and proper node addressing |
If issues persist, contact technical support with photos of the installation, diagnostic logs from the control software, and serial numbers of the affected units.
Frequently Asked Questions (FAQ)
Is the BC810K02 hot-swappable? Yes. The design supports hot swap on the CEX bus. Kill power to the specific module if possible during replacement, but the system allows live exchange in redundant configurations. Always follow the AC800M hardware manual for the exact procedure to avoid backplane issues.
What is included with this unit? The 3BSE031155R1 package contains 2x BC810 interconnection units, 2x TP857 baseplates, 1x TK851 interconnection cable, and 2x TB850 CEX-bus terminators. Everything needed for a standard redundant link.
Can this serve as a direct replacement for older BC810 versions? In most cases yes, but verify firmware compatibility with your specific AC800M CPU and Control Builder version. Document the existing firmware before swap to prevent comms timeouts.
Why is this listed as New Surplus and priced lower than factory direct? These are genuine ABB new original units from excess OEM inventory or project spares. They undergo full inbound inspection, functional testing on AC800M racks, and come with our standard 1-year warranty. No used or refurbished parts.
Does it require any special configuration like DIP switches? No DIP switches on the BC810 itself. Configuration happens through the system software. Focus on proper physical installation, cable routing, and termination.
What about warranty and return policy? All units carry a 1-year functional warranty from shipment. We provide test reports on request. Returns accepted within 30 days if the unit fails basic power-on and comms tests in a compatible rack.
How do I confirm compatibility with my AC800M setup? Check the article number against your system documentation and verify the required CEX bus extension distance. Send us your CPU model and firmware details for a quick compatibility check before ordering.
