CLT3-4B
Overview
The CLT3-4 is a quadruple input digital termination device designed for 24 V dc automation applications. It provides the front-end circuitry of a digital input module (I/O) in industrial automation, and drives an isolating opto-coupler.
- 4 channel topology
- Wide range input dc Voltage: - VI= - 0.3 to 30 V with RI = 0 - VI = - 30 to 30 V with RI = 1.8 kΩ - Low side configuration with common ground
- Current limiter: - IGEN = 3 mA - Input current limiter activation voltage < 5 V - Temperature compensated operation
- Opto-coupler drive: - No coupler activation below 1.5 mA input current
- Input protection (RI = 1.2 kΩ): - IEC 61000-4-2 electrostatic discharge ESD, Class 3 In contact, ± 6 kV; in air, ± 8 kV Level B: temporary disruption; no change of opto-coupler state - IEC 61000-4-5 voltage surge, Class 3 ± 1000 V with 42 Ω serial resistor in differential mode Level B: temporary disruption - IEC 61000-4-4 transient burst immunity ± 4 kV peak voltage; 5 kHz repetitive rate Level A: fully functional
- Operating ambient temperature: - 25 to 85° C Benefits
- Reduced overall dissipation
- Compact with high integration
- Enables input to meet type 1 and 3 characteristic of IEC 61131-2 standard
- Compatible operation with 2 and 3 wires proximity sensor according EN60947-5-2 standard
