Product Description
NDBU-95 is an ABB dedicated DDCS (Drive Distributed Control System) fiber optic branching unit, designed to establish star topology for DDCS fiber communication networks. It receives optical messages from master devices (PLC, PC, drive controller), and broadcasts data to 9 fiber output channels simultaneously. If one connected drive loses power or fails, the rest of communication network remains operational, greatly improving the stability of multi-drive systems. Multiple NDBU-95 units can be connected in series, parallel or mixed topology to expand the quantity of connected drives. It is widely used with ABB high-power DC & AC multi-drive systems and serves as key hardware for DriveWindow fiber debugging networkManualsLib.
Specifications
| Item | Specification |
|---|---|
| Model | NDBU-95, Part No.3BHE002677R0095 |
| Protocol | DDCS (ABB proprietary drive fiber bus) |
| Channel | 1 fiber input, 9 fiber outputs |
| Data Rate | 1～4 MBd, configurable |
| Drive Current | 20mA / 30mA / 50mA, channel disable available |
| Power Supply | 24V DC |
| Indicator | Green LED per channel, ON when message received |
| Dimensions | 41mm(D) × 264mm(H) × 94mm(W) |
| Weight | Approx.1kg |
| Operating Temp | -20℃ ~ +60℃, 5%～95%RH non-condensing |
| Fiber Component | 10Mb fiber optic components |
| Certification | CE, UL, CSA |
Application
- ABB DCS800, DCS880 DC multi-drive systems;
- DDCS fiber network for ACS800, ACSM1, ACS880 multi-drive packages;
- Multi-motor synchronous control in metallurgy, rolling mill, paper, mining, crane industries;
- Fiber-based commissioning and centralized monitoring via DriveWindow software;
- Star fiber network for extrusion lines, film production lines and industrial production lines.
Related Series Models
- NDBU-85C: DDCS fiber branching unit, 5 output channels
- NDBU-95B: Earlier revision of NDBU-95
- NDBU-95C: Updated successor model of NDBU-95 (Part No.3AFE64008366)
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