Allen-Bradley 1794-OV32
Allen-Bradley 1794-OV32
Allen-Bradley 1794-OV32
Allen-Bradley 1794-OV32
Allen-Bradley 1794-OV32
Allen-Bradley 1794-OV32
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    Reliable distribution of this high-density Allen-Bradley sinking output hardware through Apter Power maintains precise switching performance and safeguards continuous plant operations.

1794-OV32

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The 1794-OV32 is a Rockwell Automation FLEX I/O digital sinking output module with 32 outputs, 24V DC (10-31.2V), 0.5A per point, and 32 status indicators.
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Technical specifications for 1794-OV32

  • Manufacturer:
    Allen-Bradley
  • Part Number:
    1794-OV32
  • Product Family:
    Flex I/O
  • Product Type:
    Output Module
  • Stock:
    1
  • Number of Outputs:
    32
  • External DC Supply Voltage Range:
    10...31.2V DC (includes 5% AC ripple)
  • Output Current (per point):
    0.5A
  • Status Indicators:
    32 yellow LEDs
  • Keyswitch Position:
    2
  • ESD Immunity:
    6 kV contact, 8 kV air
  • Radiated RF Immunity:
    10 V/m
  • Weight:
    0.22 kg
  • Estimated shipping dimensions:
    3.5x14x14.5cm
  • Tariff Code:
    8517795000
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Specifications Application Protection Features Installation and Upgrades

Features:

  • Provides 16 channels of 4–20 mA analog output with integrated HART communication for precise process control.
  • Delivers ±0.35% full-scale calibrated accuracy and ±0.05% output resolution for stable and reliable signal transmission.
  • Supports up to 800 Ω output load with a response time under 80 ms, ensuring fast and dependable control performance.
The 1794-OV32 packs 32 discrete sinking output channels into a module measuring just 94 x 94 x 69 mm. This high density is a significant advantage for control panels with limited space. In a typical FLEX I/O system, a 16-point output module would require two modules to achieve 32 outputs, consuming two terminal bases, two backplane positions, and twice the panel area. The 1794-OV32 reduces this to one module, one terminal base, and one slot. Each output is rated at 0.5A at 10-31.2V DC, sufficient for controlling small solenoids, indicator lights, relay coils, and PLC inputs directly without external interposing relays.

The 1794-OV32 is designed to survive in demanding industrial environments. It operates over a temperature range of 0 to 55°C (32 to 131°F), allowing installation in control cabinets without air conditioning in many climates. For storage or transportation, it withstands -40 to 85°C (-40 to 185°F). Vibration resistance is 5g at 10-500 Hz – suitable for mounting near rotating machinery or on movable equipment. Shock tolerance is 30g operating and 50g non-operating, providing resilience against impacts during installation or machine operation.

The 1794-OV32 is designed to survive in demanding industrial environments. It operates over a temperature range of 0 to 55°C (32 to 131°F), allowing installation in control cabinets without air conditioning in many climates. For storage or transportation, it withstands -40 to 85°C (-40 to 185°F). Vibration resistance is 5g at 10-500 Hz – suitable for mounting near rotating machinery or on movable equipment. Shock tolerance is 30g operating and 50g non-operating, providing resilience against impacts during installation or machine operation.

The 1794-OV32 Allen-Bradley Output Module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL)by the manufacturer (OEM).
Allen-Bradley 1794-OV32 Output Module Manuals, Datasheets,Drivers,Link Important Notice:Other accessories,manuals,cables,calibration data,software,etc.are not included with this equipment unless listed in the above stock item description.All prices are shown in USD.
Allen-Bradley 1794-OV32 Output Module Specs

General

  • Manufacturer Allen-Bradley
  • Model 1794-OV32
  • Condition New Original ready stock
  • Product Family 1794-OB32,1794-OV16,1794-OB16
Important Notice:Other accessories,manuals,cables,calibration data,software,etc.are not included with this equipment unless listed in the above stock item description.All prices are shown in USD.
  • Distributed I/O Solutions: With various communication adapters (such as EtherNet/IP, ControlNet, etc.), installed in remote cabinets to reduce long-distance cable laying.
  • High-Density Load Control: Suitable for simultaneously controlling a large number of low-power DC loads, such as solenoid valves, indicator lights, relay coils, or small contactors.
  • In-Cabinet Installation: Designed with an open structure, specifically for installation in compliant industrial cabinets.
  • LED Status Indicators: The panel is equipped with 32 yellow status indicators, allowing operators to directly visually confirm the output status of each channel.
  • Group Isolation: The module employs a group isolation configuration to enhance safety and prevent fault propagation across equipment.
  • Protection Deficiencies and Recommendations: The 1794-OV32 is a non-fused module.
  • Installation Steps: Turn the keyswitch on the terminal block clockwise to position 2 (the required position for this module).
  • Ensure the Flexbus connector is fully pushed open to the left to connect to the adjacent module or adapter.
  • Align the module with the alignment strip and groove on the base and press it down vertically and steadily until the locking mechanism engages.
  • Hot-Swap Support: FLEX I/O systems typically support RIUP (Running Insertion and Removal), allowing module replacement while the system is running without interrupting base bus communication.
Description
The 1794-OV32 is a FLEX I/O digital output module from Rockwell Automation. It provides 32 sinking (NPN) outputs for controlling field devices such as solenoids, relays, and indicator lights. The module operates on an external DC power supply ranging from 10 to 31.2V DC. Each output is rated at 0.5A. The module has 32 yellow status LEDs for channel indication.

When using the 1794-OV32, engineers benefit from high-density output capability (32 points) in a compact 94x94x69 mm form factor. The module requires a terminal base (ordered separately) and connects to the FLEX I/O backplane. The keyswitch position is 2. It supports wiring category 2 for signal ports. Reverse polarity protection is not specified but external 24V DC supplies typically include this feature.

The 1794-OV32 is designed for use in industrial environments with an operating temperature range of 0 to 55°C and storage temperature from -40 to 85°C. It is vibration tested to 5g at 10-500Hz and shock tested to 30g operating / 50g non-operating. EMC compliance includes ESD immunity (6kV contact, 8kV air) and radiated RF immunity (10V/m). Weight is approximately 80g.

For legacy ControlLogix or FLEX I/O system expansions, the 1794-OV32 provides a reliable sinking output solution. It is compatible with FLEX I/O terminal bases (e.g., 1794-TB3 or 1794-TB3S). The module is open-style (IP20) and must be installed in a suitable enclosure. Always verify that your controller supports 1794 series I/O modules.
Revisions

Revision Part #

Also known as

1794-OV32 Ser A
1794-OV32/A, Series A, Rev A
Alternative Names
1794-OB32 1794-OV16 1794-OB16 1794-TB32 I79A-0V32 17940V32 I794-OV32 I79A0V32
Technical notes
The 1794-OV32 is a sinking (NPN) output module. The external DC power supply positive connects to the load, and the output channel switches the load negative side to ground. Ensure your field devices are wired correctly for sinking outputs.The module has 32 yellow status indicators – one per channel. When an output is energized, the corresponding LED illuminates.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Is the 1794-OV32 sinking or sourcing?
The 1794-OV32 is a sinking (NPN) output module. It switches the load to ground (DC common). Connect the load positive to the external DC supply and the load negative to the output channel. For sourcing applications, use 1794-OB32.
How many outputs does the 1794-OV32 provide?
Each output is rated 0.5A at 10-31.2V DC. This high density reduces the number of modules and terminal bases needed, saving significant panel space.
Which terminal bases work with the 1794-OV32?
The 1794-OV32 requires a FLEX I/O terminal base such as 1794-TB3 (screw) or 1794-TB3S (spring). The keyswitch position must be set to position 2. The module mounts onto the base after the base is wired. The base is ordered separately.
What are the environmental ratings of the 1794-OV32?
The 1794-OV32 operates from 0 to 55°C, withstands 5g vibration (10-500 Hz), and 30g shock (operating). ESD immunity is 6kV contact / 8kV air. It is suitable for industrial environments but is open-style (IP20) and requires enclosure mounting.

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