ABB Bailey NTRO02-A Relay Output Board

Product Introduction

The ABB Bailey NTRO02-A is a high-performance Relay Output Board designed to provide discrete output control for field devices in INFI 90, Net90, and Symphony Distributed Control Systems (DCS). Engineered for industrial automation applications, the NTRO02-A interfaces with the system’s logic processors and outputs control signals to external equipment such as motors, pumps, alarms, solenoids, and other actuators.

Each relay channel is isolated and independently controlled, making the NTRO02-A suitable for applications requiring robust, fail-safe operation. With its rugged construction, long relay life, and excellent compatibility with ABB control systems, this board ensures reliable performance in harsh industrial environments.

Technical Specifications

Applications

The ABB NTRO02-A relay output module is ideally suited for a wide range of discrete output control applications in critical industrial systems. Some typical applications include:

• Power Generation Plants: Controls motor starters, fans, pumps, alarm beacons, and solenoid valves.

• Chemical and Petrochemical Industries: Manages output signals for process interlocks, shutdown circuits, and valve actuators.

• Oil & Gas Facilities: Controls fire suppression systems, ESD actuators, and local control room indicators.

• Water & Wastewater Treatment: Outputs control for valve actuators, dosing pumps, and overflow alarms.

• Pulp and Paper Mills: Interfaces with conveyors, pressure release valves, and emergency stop relays.

• Pharmaceutical Plants: Sends control signals for batch equipment, environmental alarms, and containment door locks.

Its versatility and reliability make the NTRO02-A a go-to solution wherever industrial relay-based output is required.

Product Advantages

• Reliable and Isolated Relay Outputs
  Provides high-integrity signal switching with galvanic isolation to ensure safe, noise-free operation in complex environments.

• Built for Industrial Use
  Rugged design, high contact rating, and resistance to vibration and temperature variations make it suitable for critical control rooms and field enclosures.

• Visual Status Feedback
  On-board LEDs for each relay output allow for quick diagnostics and verification of output status.

• System Compatibility
  Seamlessly integrates with ABB INFI 90, Net90, and Symphony control platforms, minimizing engineering time and system integration efforts.

• High Channel Density
  Offers 16 relay outputs in a compact footprint, ideal for space-constrained control cabinets.

• Long Relay Life
  High-quality relays rated for thousands of operations, supporting extended system uptime.

• Ease of Maintenance
  Modular, rack-mounted design allows quick replacement and minimal downtime during service or upgrade.

Frequently Asked Questions (FAQ)

1. What is the main function of the NTRO02-A module?
   It provides 16 discrete relay outputs for controlling field devices like motors, alarms, and solenoids.

2. Does the NTRO02-A support both AC and DC loads?
   Yes, it supports both, within its rated contact capacity (0.5 A @ 125 VAC or 2 A @ 30 VDC).

3. Is the module hot-swappable?
   No. It should be powered down before installation or removal to ensure safety and prevent damage.

4. How is each relay output isolated?
   Each channel features galvanic isolation to prevent noise and protect against electrical faults.

5. Can it be used in safety-critical systems?
   Yes, it is commonly deployed in ESD (Emergency Shutdown) and interlock circuits, provided it meets your system’s safety design requirements.

6. What is the lifetime of the relay contacts?
   The relays are industrial-grade and rated for tens of thousands of switching cycles under nominal load conditions.

7. How are the relays controlled?
   Each relay is individually actuated based on signals from the logic processor or controller via the system backplane.

8. Is there any diagnostic capability?
   Yes, the module has individual LEDs to show the status of each output relay in real-time.

9. What happens if a relay fails?
   The relay is non-repairable at the component level; the entire module should be replaced for continued reliability.

10. Does it require external power?
    No, it draws required power directly from the control system’s I/O backplane.

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Frequently Asked Questions (FAQ)

1. What is the main function of the NTRO02-A module?
   It provides 16 discrete relay outputs for controlling field devices like motors, alarms, and solenoids.

2. Does the NTRO02-A support both AC and DC loads?
   Yes, it supports both, within its rated contact capacity (0.5 A @ 125 VAC or 2 A @ 30 VDC).

3. Is the module hot-swappable?
   No. It should be powered down before installation or removal to ensure safety and prevent damage.

4. How is each relay output isolated?
   Each channel features galvanic isolation to prevent noise and protect against electrical faults.

5. Can it be used in safety-critical systems?
   Yes, it is commonly deployed in ESD (Emergency Shutdown) and interlock circuits, provided it meets your system’s safety design requirements.

6. What is the lifetime of the relay contacts?
   The relays are industrial-grade and rated for tens of thousands of switching cycles under nominal load conditions.

7. How are the relays controlled?
   Each relay is individually actuated based on signals from the logic processor or controller via the system backplane.

8. Is there any diagnostic capability?
   Yes, the module has individual LEDs to show the status of each output relay in real-time.

9. What happens if a relay fails?
   The relay is non-repairable at the component level; the entire module should be replaced for continued reliability.

10. Does it require external power?
    No, it draws required power directly from the control system’s I/O backplane.

Related or Same-Series ABB Bailey Models

Popular ABB Industrial Automation Models

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