Triconex 3624 (3) Triconex 3624 (4) Triconex 3624 (2) Triconex 3624 (1)

The Triconex 3624 Supervised Digital Output Module is a critical safety‑rated I/O component engineered to deliver reliable and fault‑tolerant actuation control within Triconex Safety Instrumented Systems (SIS). Utilizing Triple Modular Redundancy (TMR) and supervised output technology, this module converts safety logic decisions into dependable digital signals to drive field devices such as valves, relays, and alarm circuits. Its advanced supervision and diagnostics help ensure system integrity and compliance with stringent safety requirements across process industries.

Technical Specifications

Parameter	Specification
Product Type	Supervised Digital Output (SDO) Module
Model	3624
System Compatibility	Triconex Safety Instrumented Systems (TMR)
Output Channels	16 digital outputs (commoned)
Output Type	Supervised 24 V DC digital outputs
Nominal Operating Voltage	24 V DC
Recommended Voltage Range	16 – 30 V DC
Maximum Voltage	36 V DC
Output Voltage Drop	< 1.5 V DC (typical)
Power Consumption	< 10 W
Diagnostic Features	Continuous supervision and fault detection
Hot‑Swap Support	Yes
Operating Temperature Range	–40 °C to +70 °C
Storage Temperature	–40 °C to +85 °C
Mounting	Rack‑mounted in Tricon chassis
Dimensions (H × W × D)	Approx. 160 × 160 × 120 mm (industry typical)
Weight	Approx. 0.8 – 1.8 kg

Typical specifications reflect common industry references; exact values may vary by configuration or revision.

Recommended Related Models

Triconex 3008 Main Processor Module – Core SIS logic controller
Triconex 3703E Digital Input Module – Digital field signal acquisition
Triconex 3721 Analog Input Module – Analog process signal acquisition
Triconex 3805E Analog Output Module – Analog actuation outputs
Triconex 3625C1 Supervised Digital Output Module – Alternate digital output variant

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Product Applications

The 3624 module is widely deployed in safety‑critical industrial environments where reliable digital output actuation and supervision are essential:

Emergency Shutdown (ESD) Systems – Controls safety trip devices and shutdown valves
Fire & Gas Safety Systems – Activates alarms and protective actions
Process Control and Automation – Drives actuators in high‑integrity logic architectures
Burner Management Systems (BMS) – Manages fuel and ignition safety outputs
High‑Integrity Pressure Protection Systems (HIPPS) – Executes protective shutdown outputs

In these applications, the module’s supervised digital outputs ensure that output switches are not only commanded correctly but also verified for proper field performance, reducing risk and improving system safety.

Product Advantages

Supervised Output Reliability
Integrated supervision detects faults such as blown fuses, open or missing loads, and shorts, enhancing safety coverage.
Triple Modular Redundancy (TMR)
Ensures high fault tolerance and continuous effective operation even with single component failure.
Advanced Diagnostic Visibility
Provides real‑time status and health information for outputs, helping maintenance teams detect failures before they impact operation.
Hot‑Swap Support
The module can be replaced in‑service in many system configurations, reducing downtime during maintenance.
Industrial‑Grade Design
Built to withstand wide temperature ranges and harsh process conditions commonly found in petrochemical and power environments.
Seamless SIS Integration
Designed for plug‑and‑play compatibility within Triconex safety racks, simplifying system design and expansions.

Technical FAQs

What is the primary function of the Triconex 3624?
It provides supervised digital output actuation in a safety instrumented system.
How many outputs does it support?
The module supports 16 commoned digital output points.
What voltage does it operate on?
Nominal operation is 24 V DC with a recommended range of 16–30 V DC.
Does it include supervision?
Yes, it continuously monitors output status and field circuit integrity.
Can it be replaced during system operation?
Yes, many Triconex installations support hot‑swap module replacement.
What safety standard does it support?
It is designed for use in high‑integrity SIS architectures with TMR fault tolerance.
What industries use the 3624?
Oil & gas, petrochemicals, power generation, and other heavy industrial settings.
Does it detect field wiring issues?
Yes, the supervision detects open load, short, and fuse issues.
What is its typical size?
Roughly 160 × 160 × 120 mm (module form factor).
What is its weight?
Around 0.8 – 1.8 kg depending on supplier and packaging.