Keyence NU-DN1 DeviceNet Communication Unit NU Series

NU-DN1 Keyence DeviceNet Network Communication Unit – NU Series

Key Technical Specifications

• Brand: Keyence
• Model: NU-DN1
• Series: NU
• Category: Network communication unit
• Fieldbus: DeviceNet with polling I/O and explicit messaging
• Node address: 0 to 63, set on the unit
• Baud rate: Auto-detects 500 / 250 / 125 kbps
• Cable length: 100 m at 500 kbps, 250 m at 250 kbps, 500 m at 125 kbps with thick cable
• Sensor connection: N-bus amplifiers, up to 16 units via wiring-saving connector
• Passing current: 1,200 mA or less total
• Supply voltage: 11 to 25 VDC from the DeviceNet power line
• Power consumption: 1,480 mW or less, 60 mA max at 24 V excluding sensor current
• Operating temperature: -20 to +55 °C with no freezing
• Humidity: 35 to 85% RH with no condensation
• Built-in port: DeviceNet 5-pin connector
• Weight: Approx. 0.065 kg including connectors
• Lifecycle: Active, production status confirmed on the official Keyence page

Installation Guide

• Mount the unit on a DIN rail or flat panel inside your control cabinet.
• Set the node address from 0 to 63 before you power the network.
• Connect the 5-pin DeviceNet plug and confirm the bus termination.
• Link N-bus amplifiers through the wiring-saving connector, up to 16 units.
• Keep total passing current at or below 1,200 mA for stable sensor operation.
• Match cable length to baud rate: 100 m at 500 kbps is the safe limit.
• Verify the supply stays within 11 to 25 VDC from the DeviceNet line.

What Makes This Unit Practical

• Auto baud detection removes manual speed setting during commissioning.
• Polling plus explicit messaging covers both cyclic data and parameter access.
• The NU series design keeps sensor wiring short and tidy.
• Wide -20 to +55 °C range suits most factory floors.
• Low 60 mA draw at 24 V leaves headroom on the network supply.

Packing List

• 1 × Keyence NU-DN1 network communication unit
• 1 × DeviceNet 5-pin connector
• 1 × Wiring-saving connector for N-bus amplifiers
• 1 × Installation guide
• Protective packaging for safe transport

Shipping

• We ship worldwide by FedEx, UPS and DHL.
• Orders leave our warehouse within 5 days.
• We keep this item in stock for fast dispatch.

FAQ

• Q: What is the NU-DN1 used for?
  A: It connects up to 16 N-bus sensor amplifiers to a DeviceNet network.
• Q: Does the baud rate need manual setting?
  A: No, the unit auto-detects 500, 250 and 125 kbps.
• Q: What supply voltage does it accept?
  A: It runs on 11 to 25 VDC taken from the DeviceNet power supply.
• Q: How many sensor amplifiers can I connect?
  A: You can connect up to 16 units with 1,200 mA total passing current.
• Q: What is the operating temperature range?
  A: The unit works from -20 to +55 °C without freezing.
• Q: What cable length can I use?
  A: 100 m at 500 kbps, 250 m at 250 kbps and 500 m at 125 kbps.
• Q: Is the item new and in stock?
  A: Yes, we supply brand new original units from stock.
• Q: How fast do you ship?
  A: We dispatch within 5 days by DHL, FedEx or UPS.
• Q: What is the return policy?
  A: We accept returns within 30 days.