Allen-Bradley 1771-OAD/B AC Output Module
The Allen-Bradley 1771-OAD/B is a 16-point AC output module designed for seamless integration within the 1771 I/O chassis series, excluding the 1771-A1, 1771-A2, and 1771-A4 models. This module efficiently manages AC loads, making it ideal for various industrial automation applications.
Key Features
- Output Channels: 16 discrete outputs.
- Voltage Range: Operates between 10 to 138V AC at 47-63 Hz.
- Current Capacity: Supports up to 2A per output, with a maximum of 8A per module.
- Surge Handling: Capable of withstanding surge currents up to 25A per output for 100 milliseconds, repeatable every second.
- Signal Delay: Zero-crossing turn-on and turn-off delays of 8.3 ms at 60 Hz and 10.0 ms at 50 Hz.
- Power Requirements: Draws 295mA from the backplane power supply.
- Compatibility: Suitable for installation in 1771-A1B through -A4B or later I/O chassis, as well as 1771-AM1 and -AM2 chassis.
Installation and Wiring
The 1771-OAD/B module is compatible with the standard 1771-WH field wiring arm, facilitating straightforward installation and maintenance. For applications requiring additional protection, an optional fused wiring arm (1771-WHF) is available.
Applications
This module is well-suited for controlling various AC devices such as solenoids, motor starters, and indicator lamps, providing reliable performance in diverse industrial settings.
Technical Specifications
- Minimum Load Current: 5mA per output.
- On-State Voltage Drop: Maximum of 1.5V at load currents greater than 50mA; up to 5.8V at load currents less than 50mA.
- Off-State Leakage Current: Maximum of 3.0mA per output at 138V AC.
- Power Dissipation: Ranges from 1.5W (minimum) to 13W (maximum).
- Thermal Dissipation: Between 5.13 BTU/hr (minimum) and 48.0 BTU/hr (maximum).
- Isolation Voltage: Tested to 2500V DC for 1 second.
For detailed installation instructions and safety guidelines, please refer to the official Allen-Bradley documentation.
Reviews
There are no reviews yet.