TRICONEX 3674 Digital output module

TRICONEX 3674 Digital output module

Specific Parameters​

• Electrical Parameters​

Supply Voltage: 24V DC, supporting 16-30V DC wide voltage input, maximum withstand voltage 36V DC​

Output Channels: 2 independent digital outputs, electrical isolation between channels​

Output Current: 2A maximum rated current per channel, 10A/10ms transient inrush current​

Voltage Drop: Typical value <1.5V DC​

Communication Interface: Supports Modbus TCP/IP protocol, compatible with TRICONEX dedicated redundant bus​

Isolation Level: Isolation voltage ≥1500V DC between channels and between channels and chassis​

Protection Functions: Channel short-circuit self-protection (current limiting design), power reverse connection protection, overvoltage protection (36V DC threshold)​

Power Consumption: Module load power consumption <10W​

• Environmental Parameters​

Operating Temperature: -40°C to 75°C (non-condensing)​

Storage Temperature: -40°C to 85°C​

Relative Humidity: 5% to 95% (non-condensing)​

EMC Immunity: Complies with EN 61326-1 industrial standard, ESD protection ±15kV (air discharge)​

Certification Standards: IEC 61508 SIL 3 certification, FM certification, ATEX Zone 2 explosion-proof certification​

• Mechanical Parameters​

Dimensions: 225mm×100mm×50mm​

Weight: Approximately 1kg​

Mounting Method: TRICONEX standard chassis slot mounting, supporting hot swapping​

Housing Material: Flame-retardant reinforced plastic (UL 94 V-0 grade)​

Indicators: Power Status (PWR, green steady on), Channel Status (CH1/CH2, green steady on for valid output), Fault Status (ERR, red steady on for module fault)​

Product Performance​

The module adopts Triple Modular Redundancy (TMR) architecture, with three independent channels working in parallel and real-time voting. When a single channel fails, the system automatically switches to the redundant channel, with a fault isolation rate of 100%, ensuring continuous validity of output signals. It is certified to IEC 61508 SIL 3, with a safety integrity level meeting the requirements of safety-critical scenarios such as Emergency Shutdown (ESD) and fire interlock.​

The output signal response time is ≤1ms, which can quickly execute controller instructions and avoid safety risks caused by action delay. It integrates real-time fault detection function, which can accurately identify abnormalities such as channel short circuit, open circuit and power undervoltage. Fault information is uploaded to the controller in real time via redundant bus, and the local fault indicator is triggered simultaneously.​

The module has self-protection function, which can realize current limiting protection when the channel is short-circuited without external fuses, and automatically resume normal operation after the fault is eliminated. It adapts to 24/7 continuous production scenarios, with a Mean Time Between Failures (MTBF) ≥1,000,000 hours (25℃ environment), and can be seamlessly integrated with all series of TRICONEX safety controllers, supporting modular expansion.​