The Allen-Bradley 1794-OE4 is a 4-point analog output module designed for the FLEX I/O distributed I/O system. This module provides four single-ended analog output channels, allowing for precise control of field devices such as actuators, valves, and variable speed drives. It is engineered to integrate seamlessly into industrial control architectures, providing reliable signal conversion from digital controller data to analog output signals.
Features
Four single-ended analog output channels.
Supports 4 to 20 mA output current range.
Requires a nominal 24V DC external power supply.
Compact FLEX I/O form factor for space-efficient cabinet mounting.
Compatible with various FLEX I/O terminal bases for flexible wiring configurations.
Technical Specifications
Product Model
1794-OE4
Manufacturer
Allen-Bradley
Module Type
Analog Output Module
Number of Outputs
4 Single-Ended
Output Current Range
4 to 20 mA
Voltage Output Load
3 mA maximum
External Power Supply
24V DC nominal
Operating Temperature
0 to 55 degC (32 to 131 degF)
Storage Temperature
-40 to 85 degC (-40 to 185 degF)
Vibration Rating
5g at 10 to 500 Hz
Installation Guidelines
Ensure the system power is disconnected before installing or removing the module from the terminal base.
Mount the module onto a compatible FLEX I/O terminal base, ensuring it is securely seated to establish electrical connections.
Use shielded twisted-pair cabling for analog signal wiring to minimize electromagnetic interference (EMI).
Maintain proper grounding practices for the 24V DC power supply to ensure signal integrity.
Ensure adequate ventilation within the enclosure to maintain operating temperatures within the specified 0 to 55 degC range.
Handle with care to prevent electrostatic discharge (ESD) damage to the module electronics.
FAQ
What is the primary function of the 1794-OE4?
The 1794-OE4 is an analog output module used to convert digital values from a PLC or controller into 4-20 mA analog signals to control field devices.
Does this module require an external power supply?
Yes, the 1794-OE4 requires a nominal 24V DC external power supply to operate the output circuitry.
Is this module compatible with all FLEX I/O bases?
The 1794-OE4 is designed for use with standard FLEX I/O terminal bases. Please verify the specific terminal base wiring compatibility for your application requirements.
