TRICONEX 3721
Product Description:
The Triconex 3721 is a Triple Modular Redundant (TMR) Analog Input (AI) module designed for use in EcoStruxure Triconex Safety Instrumented Systems (SIS). It is a crucial component for interfacing analog signals from field devices such as transmitters (pressure, temperature, flow, etc.) to the Triconex safety controller. The TMR architecture ensures high reliability and fault tolerance, making it suitable for safety-critical applications. The module features 32 differential, DC-coupled input channels.
Key Features:
- Triple Modular Redundancy (TMR): Provides fault tolerance and high availability.
- Analog Input (AI) Module: Interfaces with analog field signals.
- 32 Differential Inputs: Handles a high density of analog input points.
- DC-Coupled: Suitable for direct current analog signals.
- High Accuracy: Offers accurate conversion of analog signals to digital values.
- Programmable Resolution: Supports 12-bit or 14-bit resolution.
- Input Overrange Protection: Protects the module from excessive input voltages.
- Comprehensive Diagnostics: Includes indicators for module status and field issues.
- Isolated Points: Provides isolation for each input channel.
Product Parameters:
- Manufacturer: Triconex (Schn
- eider Electric)
- Series: EcoStruxure Triconex
- Module Type: Analog Input (AI) Module
- Number of Input Points: 32 differential
- Voltage Range: 0 to 5 VDC or -5 to +5 VDC (+6% overrange)
- Current Range: 0-20 mA (with external 250 Ω shunt resistor)
- Resolution: 12 bits or 14 bits (programmable)
- Accuracy: < 0.15% of Full Scale Range (FSR) from 0° to 60°C
- Input Update Rate: 10 ms
- Input Resistance (load): 10 MΩ (DC), minimum
- Power-Off Resistance: 140 kΩ (DC), typical
