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- Overview
- Specifications
- Description
- Applications
- Features
- FAQ
- Recommended Products
Overview
Place of Origin: |
Sweden |
Brand Name: |
ABB |
Model Number: |
NBIO-21CU |
Packaging Details: |
Original new Factory Sealed |
Delivery Time: |
5-7 days |
Payment Terms: |
T/T |
Supply Ability: |
In stock |
Specifications
|
Part Number |
NBIO-21CU |
|
Product Type |
BASIC I/O Unit |
|
Weight |
0.624 kg |
|
Poles |
4 pole |
|
Electrical Type |
AC |
|
Contactor Type |
AC power |
|
Input Signal Type |
Digital |
|
Output Signal Type |
Digital |
|
Operating Voltage |
24 VDC (or other voltage) |
|
Mounting Method |
DIN rail mounting |
|
Operating Temperature |
-20°C to +70°C |
Description
The ABB NBIO-21CU is a basic I/O unit manufactured by ABB, primarily used in industrial automation systems to acquire digital signals and output control signals. It is typically integrated into ABB's PLC (Programmable Logic Controller) systems to provide a reliable I/O interface for automation processes.
Applications
Thermal Power Plants: Core DCS I/O for interlock control and analog monitoring of auxiliary and utility systems.
Urban Wastewater Treatment Plants: Collect real-time flow, pressure, and level data from distributed pumping stations.
Combined Cycle Power Plants (CCGT): Enable fast acquisition and precise control during startup and load changes.
Oil Refineries: Used in remote cabinets for transmitter signal feedback, reducing field wiring complexity.
Seawater Desalination Plants: Ensure stable data handling in high-humidity and corrosive environments for RO systems.
Features
Digital I/O: Supports digital inputs and outputs, capable of handling digital signals.
Modular Design: Modular design for easy installation and maintenance.
Industrial-Grade Design: Suitable for harsh industrial environments, offering high reliability.
Flexible Configuration: Can be flexibly configured to meet different application requirements.
FAQ
Q: Can the NBIO-21CU directly drive AC loads?
A: Yes. It is an AC contactor control unit that can directly drive AC coils or low-power AC actuators.
Q: What does “4 Pole” mean in NBIO-21CU?
A: It indicates control/monitoring of 4-pole devices, suitable for three-phase four-wire systems.
Q: Does the NBIO-21CU require preheating at -20°C?
A: No. It supports cold start and full operation from -20°C to 70°C.
Q: How does the NBIO-21CU filter digital inputs?
A: Built-in anti-bounce filtering removes contact noise and false triggering.
Q: Does the address need reconfiguration when replacing NBIO-21CU?
A: Only if DIP-switch addressing is used; keep switch settings identical for replacement.
