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ABB NASI-02 Analog Input Module
Product Description
A dedicated analog input module for ABB Symphony Plus automation systems, focused on collecting 4-20mA analog signals from field transmitters (temp, pressure, flow). It acts as a slave node in analog control loops, converting field analog signals to digital data for master controllers (e.g., ABB NAMM03), ensuring stable data transmission in distributed industrial scenarios.
Key Specifications
- Input Channels: 8 analog input channels (2.5kV AC isolation between channels).
- Signal Type: Exclusive 4-20mA (input impedance 250Ω); no voltage signal support.
- Accuracy: ±0.1% full scale (FS) for 4-20mA signals.
- Loop Compatibility: Works with ABB proprietary analog loops; supports up to 32 slave modules per master.
- Power: 24V DC (18-30V DC); ≤4W full load.
- Environment: -40°C to +70°C; 5%-95% humidity (non-condensing); IP20.
- Mechanical: 35mm DIN rail; 100×80×25mm; connects to loop bus via 15-pin D-sub.
- Protection: 5kV AC isolation (module-loop bus); ±8kV ESD (IEC 61000-4-2); low-pass filtering (50Hz cutoff).
- Catalog Nos.: GJR5253000R0201, GJR5253000R0202 (regional variations).
Advantages & Features
- Loop Slave Optimization: Tailored for ABB analog loops, ensures seamless data sync with master controllers, ideal for distributed control.
- High Isolation Safety: 5kV AC loop isolation prevents field faults (e.g., ground loops) from damaging the master system.
- Stable 4-20mA Focus: Dedicated to 4-20mA signals, guarantees higher accuracy for industrial standard current transmitters.
- Redundancy Support: Compatible with loop ring topology, auto-switches to standby loop if main link fails, no control interruption.
- Easy Deployment: Auto-addressing via DIP switch; online config via ABB Control Builder M, no system shutdown.
Application Fields
- Oil & Gas: Collect wellhead pressure/flow signals (4-20mA) and transmit to central DCS loop master.
- Chemical Plants: Capture reactor temperature signals from thermocouple converters (4-20mA) in distributed zones.
- Power Auxiliaries: Gather boiler feedwater pressure signals (4-20mA) for auxiliary system monitoring.
- Water Treatment: Collect pump flow signals (4-20mA) in remote dosing stations, integrating into central control.
Precautions
- Use shielded twisted-pair for loop wiring; add 120Ω termination resistors at loop ends to avoid signal reflection.
- Assign unique address (1-32) via DIP switch; duplicate addresses cause loop conflicts.
- Use regulated 24V DC power (overload protection); check polarity before power-on, avoid reverse connection.
- Avoid installing near high-voltage cables/motors; keep away from heat sources to prevent overheating.
- Calibrate channels annually with ABB tools; clean terminals every 6 months to prevent oxidation.
English Translation
ABB NASI-02 Analog Input Module
Product Description
A dedicated analog input module for ABB Symphony Plus automation systems, focused on collecting 4-20mA analog signals from field transmitters (temperature, pressure, flow). It acts as a slave node in analog control loops, converting field analog signals to digital data for master controllers (e.g., ABB NAMM03), ensuring stable data transmission in distributed industrial scenarios.
Key Specifications
- Input Channels: 8 analog input channels (2.5kV AC isolation between channels).
- Signal Type: Exclusive 4-20mA (input impedance 250Ω); no voltage signal support.
- Accuracy: ±0.1% full scale (FS) for 4-20mA signals.
- Loop Compatibility: Works with ABB proprietary analog loops; supports up to 32 slave modules per master.
- Power: 24V DC (18-30V DC); ≤4W full load.
- Environment: -40°C to +70°C; 5%-95% humidity (non-condensing); IP20.
- Mechanical: 35mm DIN rail; 100×80×25mm; connects to loop bus via 15-pin D-sub connector.
- Protection: 5kV AC isolation (module-loop bus); ±8kV ESD (IEC 61000-4-2); low-pass filtering (50Hz cutoff).
- Catalog Nos.: GJR5253000R0201, GJR5253000R0202 (regional variations).
Advantages & Features
- Loop Slave Optimization: Tailored for ABB analog loops, ensuring seamless data synchronization with master controllers, ideal for distributed control.
- High Isolation Safety: 5kV AC loop isolation prevents field faults (e.g., ground loops) from damaging the master system.
- Stable 4-20mA Focus: Dedicated to 4-20mA signals, guaranteeing higher accuracy for industrial standard current transmitters.
- Redundancy Support: Compatible with loop ring topology, auto-switches to standby loop if main link fails, no control interruption.
- Easy Deployment: Auto-addressing via DIP switch; online configuration via ABB Control Builder M, no system shutdown.
Application Fields
- Oil & Gas: Collect wellhead pressure/flow signals (4-20mA) and transmit to central DCS loop master.
- Chemical Plants: Capture reactor temperature signals from thermocouple converters (4-20mA) in distributed zones.
- Power Auxiliaries: Gather boiler feedwater pressure signals (4-20mA) for auxiliary system monitoring.
- Water Treatment: Collect pump flow signals (4-20mA) in remote dosing stations, integrating into central control.
Precautions
- Use shielded twisted-pair for loop wiring; add 120Ω termination resistors at loop ends to avoid signal reflection.
- Assign unique address (1-32) via DIP switch; duplicate addresses cause loop conflicts.
- Use regulated 24V DC power (with overload protection); check polarity before power-on, avoid reverse connection.
- Avoid installing near high-voltage cables/motors; keep away from heat sources to prevent overheating.
- Calibrate channels annually with ABB tools; clean terminals every 6 months to prevent oxidation.
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The structure and details of the product：
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