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Allen-Bradley 1790-8BV8VX CompactBlock LDX 8 Universal Input / 8 Sinking Output Expansion Block – Technical Specifications and FAQ
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Allen-Bradley / Rockwell Automation |
| Model | 1790-8BV8VX |
| Product Name | CompactBlock LDX I/O Expansion Block |
| Product Type | Digital Input/Output Expansion Module |
| Product Family | CompactBlock LDX |
| Product Description | 8 Universal Inputs / 8 Sinking Outputs, 24V DC, D-Shell |
| Input Channels | 8 points, non-isolated, sinking or sourcing |
| Output Channels | 8 points, non-isolated, sinking |
| Total I/O Points | 16 points |
| Nominal Voltage | 24V DC |
| Input ON-State Voltage | 9.6–28.8V DC |
| Input OFF-State Voltage | 5V DC maximum |
| Input ON-State Current | 8 mA maximum per point |
| Input Impedance | 4.8 kΩ nominal |
| Output Voltage Range | 10–28.8V DC |
| Output Current | 0.5 A maximum per output |
| Maximum Current per Common | 4.0 A |
| Output Voltage Drop | 0.5V DC maximum |
| Output Leakage Current | 0.5 mA maximum |
| Output Signal Delay | OFF to ON: 0.5 ms max; ON to OFF: 1.0 ms max |
| Field Power Supply | 24V DC nominal |
| Field Power Range | 10–28.8V DC |
| Isolation | Photocoupler isolation, 1250V AC RMS |
| Field Connector | 37-pin D-shell |
| Communication Network | DeviceNet through compatible base block |
| Expansion Connection | Ribbon cable |
| Status Indicators | 8 input LEDs and 8 output LEDs |
| Protection Rating | IP20 |
| Mounting | DIN rail or panel mounting |
| Operating Temperature | 0 to 60°C |
| Storage Temperature | -40 to 85°C |
| Product Dimensions | 104 × 42 × 52 mm (L × W × H) |
| Packing Dimensions | Approx. 150 × 120 × 100 mm (estimated) |
| Net Weight | Approx. 0.10 kg |
| Gross Weight | Approx. 0.30 kg (estimated) |
| Country of Origin | USA |
| Lifecycle Status | Discontinued September 30, 2023 |
| UPC | 612598283576 |
FAQ
FAQ
Q1: What is the Allen-Bradley 1790-8BV8VX?
A: It is a CompactBlock LDX digital I/O expansion module featuring 8 universal DC inputs and 8 sinking transistor outputs.
Q2: What is the difference between 1790-8BV8VX and 1790-8BV8BX?
A: The 1790-8BV8VX has 8 sinking outputs, while the 1790-8BV8BX has 8 sourcing outputs. Both have 8 universal inputs.
Q3: What is the rated operating voltage?
A: The module uses a nominal 24V DC supply. Its input ON-state voltage range is 9.6–28.8V DC.
Q4: What is the maximum output current?
A: Each sinking output supports up to 0.5 A, with a maximum combined current of 4.0 A per common.
Q5: Can the 1790-8BV8VX operate independently?
A: No. It is an expansion block and requires a compatible CompactBlock LDX base block for system operation and DeviceNet communication.
Q6: What type of connector does this module use?
A: It uses a 37-pin D-shell field connector and a ribbon cable connection for expansion.
Q7: What are the dimensions and weight of the 1790-8BV8VX?
A: The product dimensions are approximately 104 × 42 × 52 mm, and the net weight is approximately 0.10 kg. Estimated packing dimensions are 150 × 120 × 100 mm, with a gross weight of approximately 0.30 kg.
Q8: What is the country of origin and product lifecycle status?
A: The country of origin is South Korea according to Rockwell Automation. The product was discontinued on September 30, 2023.
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Packing & Delivery
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