Triconex 3625 Digital 24VDC Output Module

Triconex 3625 Digital 24 VDC Output Module

The Triconex 3625, also cataloged as the 3625 digital output module, operates as a dedicated 24 VDC solid‑state switching component for fault‑tolerant discrete actuation within Tricon TMR safety‑instrumented architectures.

Hardware Specifications

Triple Modular Redundancy and Fail‑Safe Execution

Within Triconex safety‑instrumented systems, the 3625 participates in 2oo3 TMR architecture with quadruplicated output‑voting circuitry. Galvanic isolation prevents propagation of transient faults between channels and system legs. During fail‑safe transitions, the module maintains deterministic output behavior, ensuring predictable actuation states even when one or more legs enter a degraded condition. Supervised mode enables continuous line monitoring for open, short, or load‑fault conditions.

Frequently Asked Questions

Q: Can the 3625 be replaced while the system is energized? A: Yes. The module supports full hot‑replacement within a powered Tricon chassis.

Q: Does supervised mode affect output timing? A: No. Line‑monitoring diagnostics operate independently of output switching intervals.

Q: Are surge currents internally limited? A: Surge handling is hardware‑defined; external load design must accommodate the 7 A, 10 ms capability.

Field Installation Guidelines

• Maintain correct torque on terminal screws to prevent conductor movement under vibration.
• Route output wiring separately from high‑energy conductors to reduce induced noise.
• Ensure supervised‑mode wiring follows load‑monitoring polarity and return‑path requirements.
• Verify proper seating in the Tricon chassis before energizing.
• Avoid sharp bends in field wiring to preserve insulation integrity.