Beckhoff PLC module KL1408

The Beckhoff KL1408 is an 8-channel digital input terminal designed for 24 V DC control signals. It acquires binary signals from the process level and transmits them, in an electrically isolated form, to the higher-level automation unit. Each channel's signal state is indicated by light-emitting diodes (LEDs), providing clear status feedback.

Key Features:

• Input Specification: Complies with EN 61131-2, type 1/3 standards.
• Signal Voltage:
  • "0" signal voltage: -3 V to +5 V.
  • "1" signal voltage: 11 V to 30 V.
• Input Current:
  • "0" signal current: 0 to 1.5 mA.
  • "1" signal current: 2.0 to 2.5 mA.
• Input Filter: Typical 3.0 ms, ensuring no bouncing due to mechanical switches.
• Electrical Isolation: 500 V between K-bus and field potential.
• Operating Temperature Range: -25°C to +60°C.
• Storage Temperature Range: -40°C to +85°C.
• Protection Rating: IP20.
• Approvals: CE, UL, ATEX, DNV GL.

Applications:

The KL1408 is ideal for applications requiring the acquisition of binary control signals, such as:

• Industrial Automation: Integrating various sensors and switches into control systems.
• Process Control: Monitoring and controlling processes with digital inputs.
• Building Automation: Managing lighting, HVAC, and security systems.