The Allen-Bradley 1794-IA16 is a 16-point digital input module designed for the FLEX I/O system, providing efficient monitoring of 120V AC signals in industrial automation applications.
Key Features
- Input Channels: 16 non-isolated digital inputs.
- Voltage Range: 74–132V AC, with a nominal input voltage of 120V AC.
- Input Current: Nominal 12 mA at 120V AC.
- Input Delay: ON to OFF and OFF to ON transitions typically at 8.3 ms.
- Status Indicators: 16 yellow LEDs, one per input channel, for real-time status monitoring.
- Mounting: Compatible with FLEX I/O terminal bases such as 1794-TB3 and 1794-TBN for DIN rail installation.
Technical Specifications
- On-State Voltage: Minimum 74V AC; Maximum 132V AC.
- Off-State Voltage: Maximum 20V AC.
- On-State Current: Minimum 5.49 mA; Maximum 14.81 mA.
- Off-State Current: Minimum 2.9 mA.
- FlexBus Current: 20 mA at 5V DC.
- Power Dissipation: Maximum 6.4 W at 132V AC.
- Isolation Voltage: 120V continuous, type tested at 1264V AC for 60 seconds between field side and system.
- Operating Temperature: 0°C to 55°C (32°F to 131°F).
- Storage Temperature: -40°C to 85°C (-40°F to 185°F).
- Relative Humidity: 5% to 95% non-condensing.
- Vibration: 5g at 10–500 Hz.
- Shock: Operating 30g; Non-operating 50g.
Applications
The 1794-IA16 module is ideal for interfacing with AC sensors, switches, and other devices in distributed control systems. Its compact design and high-density input capacity make it suitable for applications requiring efficient space utilization and reliable signal monitoring.
Certifications
- UL Listed.
- CE Marked.
- CSA Certified.
- RoHS Compliant.
- Class I Division 2 Hazardous Locations.
The Allen-Bradley 1794-IA16 FLEX I/O module offers a reliable solution for monitoring 120V AC inputs, enhancing the flexibility and scalability of industrial automation systems.
