TRICONEX AO3481S2 analog output module

Specific Parameters

Electrical Parameters
Output Type: 4-20mA DC analog output, supporting 0-22mA over-range output
Channel Configuration: 4 independent output channels, each with independent isolation and diagnostic functions
Accuracy: <0.25% full scale range (0-22mA) within 0-70°C
Resolution: 12-bit
Power Requirement: External loop power supply, nominal 24V DC, maximum 32V DC
Load Capacity: 300Ω@>16V DC, 500Ω@>20V DC, 700Ω@>24V DC, 800Ω@>28V DC
Isolation Level: 2.5kV AC between channels and between channels and system (1 minute)
Protection Functions: Reverse voltage protection, 36V DC continuous overvoltage protection
Power Consumption: ≤7W under normal operation
Environmental Parameters
Operating Temperature: -40°C to 70°C
Storage Temperature: -40°C to 85°C
Relative Humidity: 5% to 95% (non-condensing, no dew formation)
EMC Immunity: Compliant with EN 61326-1 industrial grade standard, common mode rejection ratio ≥120dB
Vibration Resistance: 5-50Hz, 0.035 inch peak-to-peak (compliant with IEC 60068-2-6)
Shock Resistance: 15g acceleration, 11ms half-sine wave duration (compliant with IEC 60068-2-27)
Mechanical Parameters
Dimensions: 25.4mm (W) × 130mm (H) × 200mm (D)
Weight: Approximately 450g
Mounting Method: 35mm standard DIN rail (compliant with EN 60715)
Protection Class: IP20 (module itself)
Housing Material: Flame-retardant aluminum alloy (UL 94 V-0 grade)
Terminal Type: Spring-loaded crimp terminals, compatible with 14-22 AWG wires

Product Performance

AO3481S2 adopts a triple modular redundant signal processing and voting circuit. Each output signal is synchronously processed and logically voted through three independent channels, achieving 100% signal output accuracy and completely avoiding single-point fault risks. The 12-bit resolution and <0.25% high accuracy ensure the stability and precision of analog signal output, meeting the control requirements of precision regulation equipment.

Integrated with Forced-Switch Diagnostic (FSD) function, it real-time monitors channel open circuits, short circuits, overvoltage and module power abnormalities, with a fault diagnosis coverage rate ≥99.9%. The switching response time in case of channel fault is typically 1ms, maximum 3ms, and the status is intuitively fed back through dual-color LED indicators (green for normal, red for fault). It supports hot-swappable function, allowing online module replacement without interrupting system operation, ensuring production continuity.

Fully compatible with Tricon TMR series controllers, the data conversion delay is ≤2ms, meeting the real-time requirements of safety interlocks. The mean time between failures (MTBF) is ≥300,000 hours, complying with SIL 3 safety integrity level requirements.

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