1756-OA16I | Allen-Bradley Isolated AC Output Module Supplier
Introduction:
The 1756-OA16I from Allen-Bradley delivers 16 individually isolated AC outputs, handling 74-265 VAC for precise industrial control in demanding environments.
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Introduction: Solving Isolation Challenges with the 1756-OA16I
When an industrial process requires driving multiple AC loads while maintaining electrical isolation between channels, engineers face a critical design challenge. The 1756-OA16I from Allen-Bradley directly addresses this need. This 1756 ControlLogix module provides sixteen individually isolated AC output channels. Each channel operates independently, preventing ground loops and cross-talk. For applications where load separation is non-negotiable, this module delivers reliable performance.
Key Features & Technical Specs of the 1756-OA16I
- The 1756-OA16I operates within a voltage range of 74-265 VAC.
- It offers a nominal output voltage of 120/240 VAC output.
- Each of the sixteen outputs is individually isolated for maximum channel separation.
- Output delay time is 9.3 ms @ 60 Hz and 11 ms @ 50 Hz for OFF to ON transitions.
- Continuous current per point reaches 2 A @ 30 °C (86 °F) with linear derating, and 1 A @ 60 °C (140 °F).
- Maximum continuous current per module is 5 A @ 30 °C (86 °F) and 4 A @ 60 °C (140 °F).
- Power dissipation is 5.5 Watts at 60 degrees Celsius.
- Backplane current draw is 300 milliamps at 5 Volts and 3 milliamps at 24 Volts.
- OFF state leakage current is 3 mA per point.
Applications & Use Cases for the 1756-OA16I
In manufacturing lines, the 1756-OA16I controls solenoid valves, motor starters, and indicator lights. Its isolated outputs make it ideal for mixing AC loads from different power sources. For example, a packaging machine can use one channel for a 120 VAC conveyor and another for a 240 VAC heater, all from a single module. This flexibility reduces cabinet space and wiring complexity. Additionally, the module supports fault mode configuration per point, with settings for Hold last state, On, or Off.
Installation & Setup Guide
Mount the 1756-OA16I into any 1756 chassis, such as the 1756-A4, 1756-A7, 1756-A10, 1756-A13, or 1756-A17. It occupies a single slot. Use a compatible removable terminal block (RTB) like the 1756-TBCH or 1756-TBS6H for wiring connections. The module supports user-defined RTB keying to prevent misinsertion. Configure output states during program mode as Hold last state, On, or Off, with Off as default. Always follow the manufacturer's manual for proper installation.
Maintenance & Reliability Tips
To ensure long service life, inspect the 1756-OA16I periodically for signs of overheating or loose connections. The module operates within 0 to 60 °C at 5-95% non-condensing humidity. Its open-style enclosure requires no additional enclosure, but install it in a clean, dry environment. Regular inspection helps maintain uptime and extends module life.
Compatibility & Integration
The 1756-OA16I integrates seamlessly with the 1756 ControlLogix platform. It can be placed in the local rack with a ControlLogix controller or in a remote I/O rack using a 1756 communication adapter. The module supports configuration of fault mode and output states per point, making it adaptable to various control strategies. Refer to the official Allen-Bradley documentation for detailed integration steps.
FAQ about the 1756-OA16I
Q: What is the operating voltage range of the 1756-OA16I?
A: The module operates within 74-265 VAC.
Q: How many outputs does the 1756-OA16I have?
A: It features sixteen (16) individually isolated AC outputs.
Q: What is the continuous current per point at 30 °C?
A: Each point can handle 2 A at 30 °C (86 °F) with linear derating.
Q: Which terminal blocks are compatible with the 1756-OA16I?
A: Compatible terminal blocks are the 1756-TBCH and 1756-TBS6H.
Q: What is the power dissipation of this module?
A: Maximum power dissipation is 5.5 Watts at 60 degrees Celsius.
Q: Does the 1756-OA16I support fault mode configuration?
A: Yes, it supports per-point fault mode with settings for Hold last state, On, or Off.
Product Support & Availability
The 1756-OA16I is available from PetroPartsOnline. In stock and ready to ship, this module supports your automation needs. Contact PetroPartsOnline for current lifecycle status and ordering information.