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Description
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | NINT-43C |
| Manufacturer | ABB |
| Official Part Numbers | 61353260E, 3AFP60129134 |
| Product Type | Main Circuit Interface Board / Communication Board |
| Series Compatibility | ABB ACS600, ACS800 Frequency Converters |
| Supported Protocols | Profibus DP V1, Modbus RTU, DeviceNet |
| Physical Interfaces | D-sub 9-pin (Profibus DP/DeviceNet), RS-485 (Modbus RTU) |
| Profibus DP Speed | 9.6 kbps – 12 Mbps |
| DeviceNet Speed | 125/250/500 kbps (selectable) |
| Modbus RTU Speed | 1200 – 115200 bps |
| Max Bus Nodes | Profibus DP: 32; DeviceNet: 64 |
| Isolation Voltage | ≥2500V AC – 3500V AC (60s test) |
| Control Supply Voltage | 24V DC nominal (18–30V DC range) |
| Power Dissipation | < 4W (typical) |
| Operating Temperature | -25°C to +60°C |
| Protection Rating | IP20 (cabinet installation) |
| Board Dimensions | Approx. 118–170mm × 72–110mm × 22–25mm |
| Weight | Approx. 0.22 kg |
| Country of Origin | Sweden |
| Product Status | Discontinued by Manufacturer |
Main Features and Advantages
Multi-Protocol Communication Support: The ABB NINT-43C is distinguished from earlier variants by its native support for three major industrial fieldbus protocols: Profibus DP V1, Modbus RTU, and DeviceNet . This multi-protocol capability enables the ABB NINT-43C to seamlessly integrate into a wide variety of automation architectures, from legacy Modbus networks to modern Profibus installations, without requiring additional gateway hardware. The ABB NINT-43C supports Profibus DP speeds up to 12 Mbps, DeviceNet at 125/250/500 kbps, and Modbus RTU up to 115200 bps, accommodating both high-speed data exchange and long-distance communications .
Robust Galvanic Isolation for System Protection: The ABB NINT-43C provides reinforced galvanic isolation between the drive’s power stage and control electronics, with a tested isolation voltage of ≥2500V AC up to 3500V AC . This high-level isolation protects the sensitive control components from voltage transients, ground loops, and electrical noise that are prevalent in high-power industrial environments. The ABB NINT-43C‘s isolation architecture ensures that a fault in the power section does not propagate to the control system, preserving overall system integrity and safety.
Real-Time Fault Detection and Diagnostics: The ABB NINT-43C continuously monitors main-circuit signals, including DC link voltage and current, and provides fast feedback to the drive controller in the event of overcurrent, overvoltage, or thermal events . Board-mounted LED indicators (power, communication, fault) allow for rapid on-site troubleshooting, with the ERR LED signaling communication issues or power anomalies . The ABB NINT-43C‘s diagnostic capabilities significantly reduce mean-time-to-repair (MTTR) by helping maintenance personnel quickly isolate whether a fault originates from the interface board itself, the power stage, or external wiring.
Plug-and-Play Replacement: The ABB NINT-43C is physically and electrically compatible with the NINT-42C, allowing for easy field upgrades or replacements without modifying the drive’s core firmware . When replacing an older NINT-42C with the ABB NINT-43C, only the bus configuration needs to be updated to match the selected protocol—no changes to the application program are required . This plug-and-play compatibility minimizes downtime during maintenance and simplifies spare parts management.
Industrial-Grade Environmental Tolerance: Engineered for harsh industrial environments, the ABB NINT-43C operates reliably across a wide temperature range of -25°C to +60°C and is designed to withstand high humidity conditions (5–95% non-condensing) . The board’s IP20 protection rating ensures safe operation within standard control cabinets, while its rugged construction resists vibration, dust, and electromagnetic interference typical of steel mills, mines, and heavy manufacturing facilities .
