1790D-8BV8B | Allen-Bradley 8 Input/8 Output Base Module - PetroPartsOnline
Introduction:
Allen-Bradley 1790D-8BV8B 24V dc 8 universal input/8 sourcing output base module. Nonisolated, 8 points/8COM. Order from PetroPartsOnline.
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Product Attributes:
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Product Overview
The 1790D-8BV8B is an Allen-Bradley 24V dc base module featuring 8 universal inputs and 8 sourcing outputs. Designed for compact control systems, this module integrates seamlessly into 1790D series expansion racks. Its nonpolarity common type simplifies wiring in demanding industrial environments.
Technical Specifications Analysis
The 1790D-8BV8B operates on a nominal 24V dc supply with a voltage range of 11…28.8V dc. Inputs accept 9.6V dc min to 28.8V dc max on-state voltage, with 8 mA max per point at 28.8V dc. Outputs source up to 0.5 A per channel and 4.0 A per common, with a 0.5V dc max voltage drop. Isolation between I/O and logic uses photocoupler isolation rated at 1250V ac rms. The module dissipates 1.2 W max at 28.8V dc.
Application Scenarios & Usage Methods
Use the 1790D-8BV8B in discrete manufacturing lines for sensor monitoring and actuator control. For example, connect 8 proximity sensors to the universal inputs and 8 solenoid valves to the sourcing outputs. The nonisolated design works well in grounded systems where common-mode voltages are controlled. In packaging machines, this module handles high-speed counting and output switching with 0.5 ms max off-to-on delay.
Installation Guide & Packing List
Mount the module on a DIN rail in a clean, dry enclosure. Connect field wiring via the 37-pin D-shell connector. Ensure the supply voltage stays within 11…28.8V dc. The package includes one 1790D-8BV8B base module and a 37-pin D-shell connector. No additional cables or software are included.
Purchasing Advice
Verify your system requires 8 universal inputs and 8 sourcing outputs with 24V dc operation. The 1790D-8BV8B suits applications needing nonisolated, nonpolarity common wiring. PetroPartsOnline stocks this module with fast shipping for industrial automation and oil/gas sectors.
Repair & Maintenance Tips
Inspect the 37-pin D-shell connector for bent pins or corrosion. Clean the module with a dry, lint-free cloth. Store in an anti-static bag when not in use. Check input and output indicators (8 green LEDs each) during power-up to confirm status. Replace the module if any channel fails to respond.
Frequently Asked Questions (FAQs)
Q: What is the input voltage range for the 1790D-8BV8B?
A: The input on-state voltage range is 9.6V dc min to 28.8V dc max, with a nominal 24V dc.
Q: How many outputs does this module have and what is their current rating?
A: It has 8 sourcing outputs rated at 0.5 A max per output and 4.0 A max per common.
Q: Is the I/O isolated from logic?
A: Yes, I/O to logic uses photocoupler isolation with 1250V ac rms isolation voltage.
Q: What type of connector does the 1790D-8BV8B use for wiring?
A: It uses a 37-pin D-shell connector for field wiring.