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Description
The Allen-Bradley 1771-OQ16 is a 16-point isolated digital output module designed for use within the 1771 I/O chassis system. This module provides reliable switching for DC-operated field devices, supporting a voltage range of 10-32V DC at 100mA per point. As an isolated output module, it offers enhanced flexibility for applications requiring independent circuit control or varied voltage potentials across output groups.
Features
- 16 isolated output channels for versatile field device control.
- Compatible with standard 1771 I/O chassis backplanes.
- Operating voltage range of 10-32V DC.
- Maximum output current of 100mA per channel.
- Designed for industrial reliability in PLC control environments.
Applications
This module is commonly utilized in industrial automation systems for controlling actuators, relays, solenoids, and indicators. Its isolated design makes it suitable for complex control loops where electrical isolation between output channels or between the output and the backplane is required to prevent ground loops or cross-channel interference.
Technical Specifications
| Model |
1771-OQ16 |
| Type |
Digital Output Module |
| Points |
16 |
| Voltage Range |
10-32V DC |
| Current Rating |
100mA per point |
| Isolation |
Yes |
| Series Compatibility |
A, B, C |
Installation Guidelines
- Ensure the 1771 I/O chassis is powered down before inserting or removing the module to prevent electrical damage.
- Verify that the module is fully seated in the chassis slot and secured with the locking latch.
- Use appropriate shielded cabling for field connections to minimize EMI/RFI interference.
- Ensure that the external power supply connected to the output points is within the specified 10-32V DC range.
- Follow standard ESD precautions when handling the module to protect internal circuitry.
FAQ
What is the primary function of the 1771-OQ16?
The 1771-OQ16 is a digital output module used to interface a PLC system with field devices, allowing the controller to switch 10-32V DC loads.
Is this module compatible with older series versions?
Yes, the 1771-OQ16 is compatible with series A, B, and C revisions of the 1771 I/O system.
Does this module require an external power supply?
Yes, the module requires an external DC power source to drive the field devices connected to the output points.
