B&R 7DI138.70

Manufacturer: B&R Industrial Automation (ABB Group)

Product Overview:
The B&R 7DI138.70 is a 8-channel digital input module designed for the B&R X20 I/O system. It is used in industrial automation environments to acquire discrete on/off signals from sensors, switches, and actuators. The module features optical isolation and is compatible with the B&R X20 bus system.

Category:
Description

Model Series: X20 Series

Technical Specifications:

  • Number of Channels: 8 digital inputs
  • Input Voltage: 24 V DC (nominal)
  • Input Type: Sink/Source selectable
  • Isolation Voltage: 500 V DC (optical isolation per channel)
  • Input Current: Typically 3.5 mA per channel
  • Response Time: < 1 ms
  • Bus Connection: X20 I/O bus connector
  • Power Supply: 24 V DC via bus
  • Operating Temperature: 0 °C to +55 °C
  • Protection Rating: IP20

Functional Features:

  • 8 independent digital input channels
  • Optical isolation per channel for noise immunity
  • LED status indicators per channel for diagnostics
  • Sink/Source input configuration via DIP switch
  • Hot-swappable design for maintenance without system shutdown
  • Diagnostic LEDs for bus communication and channel status

Structural Features:

  • Compact plastic housing
  • DIN rail or panel mounting
  • X20 bus connector at top
  • DIP switch for input type selection
  • 8 individual LED indicators

Applicable Industries:

  • Packaging machinery
  • Food and beverage processing
  • Material handling
  • Assembly lines
  • General industrial automation

Installation Requirements:

  • Mount on DIN rail (35 mm) or panel
  • Connect to X20 bus system
  • Ensure 24 V DC power supply is stable
  • Maintain minimum spacing from high-voltage cables

Usage Notes:

  • Do not exceed 24 V DC input voltage
  • Verify sink/source configuration before wiring
  • Use shielded cables in high-EMI environments
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