3664 Triconex Dual Digital Output Module 24VDC 32-Point New

Product Overview

• The 3664 is a Dual Digital Output (DDO) module designed for the high-integrity Triconex Tricon system.
• It features 32 commoned points with an internal 2-out-of-3 (2oo3) voting mechanism for safety-critical switching.
• This 3664 module is optimized for "de-energize-to-trip" control logic in Emergency Shutdown Systems.
• Integrated voltage-loopback circuits perform continuous self-diagnostics to detect latent switch faults.
• Built for industrial resilience, the 3664 provides a cost-effective alternative to full TMR redundancy while maintaining safe operation.

Technical Specifications

• Brand: Triconex (by Schneider Electric)
• Model: 3664
• Signal Type: 24 VDC Digital Output (Dual, Serial).
• Number of Points: 32 points, commoned.
• Voltage Range: 16 VDC to 30 VDC (36 VDC Maximum).
• Current Rating: 2A per point; 10A surge capacity for 10ms.
• Isolation: 1500 VDC minimum point isolation.
• Diagnostic Indicators: PASS, FAULT, ACTIVE, and LOAD/FUSE alarms.
• Power Consumption: Efficient operation at less than 10 watts.
• Color ID: Dark Blue (Specific to 24 VDC Digital Output series).

Diagnostic & Safety Features

• Voltage Loopback: Verifies the actual state of the output switch against the controller command.
• Stuck-OFF/ON Detection: Automatically triggers a LOAD/FUSE alarm if a switch fails to respond.
• Hot-Spare Compatibility: Supports online, bumpless replacement (depending on fault type) in configured chassis.
• Mechanical Security: Physical keying ensures the 3664 is only installed in compatible slots.

Global PLC Spare HUB's Insight

• The 3664 is an essential spare for maintaining legacy and modern Tricon safety systems.
• We recommend the 3664 for de-energize-to-trip loops where safety integrity is required at a lower cost-per-point.
• This module integrates seamlessly with Triconex External Termination Panels (ETP) via high-density cabling.
• Its ability to handle high surge currents makes it ideal for direct control of industrial solenoids and actuators.

Logistics & Warranty

• Shipping Carriers: Global priority delivery via FedEx, UPS, and DHL.
• Dispatch Time: Ships within 24-48 hours from stock.
• Warranty: 12-month standard industrial warranty.
• Product Condition: Original equipment, factory-new condition.

Frequently Asked Questions (FAQ)

• Question: What is the difference between a PASS and ACTIVE light on the 3664?
• Answer: PASS indicates the internal module diagnostics are successful; ACTIVE indicates the module is currently controlling the output signals.
• Question: Does the 3664 require a specific terminal block?
• Answer: Yes, the 3664 requires a separate External Termination Panel (ETP) connected to the Tricon backplane.
• Question: Can the module detect a blown fuse on the field side?
• Answer: Yes, the voltage-loopback circuit triggers the LOAD/FUSE alarm if field power is missing from an energized point.
• Question: Is the 3664 suitable for Fire and Gas systems?
• Answer: Yes, its 2oo3 voting and high isolation make it suitable for many safety-critical F&G applications.
• Selection Guide: Should I use the 3664 for high-availability systems?
• Answer: For maximum availability (fault tolerance without any output glitch), consider a TMR 3625 module. Use the 3664 when de-energizing safely is the primary priority over zero-glitch switchover.

Tags