Triconex DI3301 Digital Input Module

Technical Specifications:

• It is designed for high availability and fault tolerance, ensuring continuous operation even in the event of hardware failures.
• The system supports safety integrity levels up to SIL 3 according to IEC 61508, making it suitable for critical safety applications.
• It operates with a triple modular redundant (TMR) architecture where three independent systems process data simultaneously and compare results to ensure accuracy and reliability.

• Output and Signal Parameters
  • The nominal output voltage is 24V DC, and the operating voltage range is 15 - 30V DC, with an absolute maximum output voltage of 33V DC and an absolute maximum reverse input voltage of -0.6V DC.
  • In switching mode, the maximum output current is less than 4.8A with self-limiting function, and the typical value is 3A; in carry mode, the minimum output current is more than 0.7A with self-limiting function, and the typical value is 1.5A.
  • The loop-back threshold is 0 - 5V DC for the off state, 6 - 14V DC for the transition state, and 15 - 30V DC for the on state, and the off-state leakage current to the load is less than 1mA.
• Power and Isolation Parameters
  • The minimum isolation voltage between functional circuit and protective ground is 500V DC, and the minimum isolation voltage between functional circuit and functional logic ground is 800V DC, which can effectively prevent electrical interference from affecting the normal operation of the module.
  • The voltage drop in the on-state is less than 1V DC when the current is 1.5A, which reduces the energy loss during signal transmission and ensures the efficiency of power utilization.

• Technical Specifications
  • Input and Signal Parameters
    • It is configured with 64 commoned, DC-coupled input channels. It offers software-selectable voltage options of 24 VDC or 48 VDC, adapting to different industrial field requirements.
    • The voltage range for 24 VDC is 15 - 30 VDC with a maximum voltage of 36 VDC; for 48 VDC, the range is 20 - 72 VDC. The turn-on voltage threshold exceeds 15 VDC for 24 VDC and 32 VDC for 48 VDC, while the turn-off threshold is below 6 VDC for 24 VDC and 11 VDC for 48 VDC.
    • The nominal turn-on current is 2 - 3 mA. The input delay is less than 2 ms for 24 VDC and less than 10 ms for 48 VDC, and the minimum point isolation voltage reaches 1500 VDC.
  • Physical and Weight Parameters
    • There are conflicting data on its physical dimensions from different sources, but it is designed for integration into standard Triconex system racks. One source lists its weight as 5000 grams, while another cites approximately 0.5 kilograms, and these discrepancies may stem from differences in whether accessories are included in the weighing.
  • Environmental Parameters
    • It maintains stable operation within an operating temperature range of -40°C to 70°C, which allows it to adapt to extreme temperature conditions in various industrial sites.
    • It has a protection level of IP65, enabling it to resist the impact of dust and water in harsh industrial environments and ensuring long-term reliable operation.

• Electrical Parameters
  • It provides 32 commoned output channels with a nominal voltage of 24 VDC and a voltage adaptation range of 16 - 32 VDC, and can withstand a maximum voltage of 36 VDC.
  • Each output point has a maximum current of 1.7 A, a surge current of 7 A within 10 milliseconds, a minimum required load current of 10 mA, and a maximum load leakage current of 4 mA.
  • The typical voltage drop is less than 2.8 VDC at 1.7 A, the power module load is less than 13 watts, and the point isolation voltage reaches 1500 VDC to avoid electrical interference between circuits.
• Physical Parameters
  • The module weighs 0.8 kg and has dimensions of 16cm × 16cm × 12cm, featuring a compact and lightweight design that facilitates installation in various industrial control cabinets.
  • It adopts an IP20-rated enclosure and is equipped with dedicated LED indicators for each output point to show on/off states, as well as module status indicators for pass, fault, load, and active conditions.