Triconex 3664 Dual Digital Output (DDO) Module
The Triconex 3664 is a Dual Digital Output (DDO) module designed for safety‑critical control applications where cost efficiency and functional safety are prioritized. It employs a 2‑out‑of‑3 voting process per output switch to ensure reliable operation while using dual‑redundant circuitry for essential fault tolerance. The module includes voltage‑loopback diagnostics to independently verify each output switch, even without a load, and triggers LOAD/FUSE alarms if discrepancies are detected. Continuous diagnostics monitor all channels and circuits, activating a Fault indicator and chassis alarm in case of failures. While the module can withstand most single faults and some multiple faults, stuck‑Off conditions may cause output interruption and potential glitches during hot‑spare switchover.
Technical Specifications
| Type |
Dual, serial (recommended for de-energize-to-trip control programs) |
| Output Signals |
32, commoned |
| Voltage Range |
16-30 VDC |
| Maximum Voltage |
36 VDC |
| Point Isolation |
1500 VDC minimum |
Product Images
Installation Requirements
Professional installation is essential to ensure optimal performance, operational safety, and compliance with industry standards. Proper implementation is critical for reliable system integration and long-term operational efficiency.
- Professional installation required for optimal performance and safety
- Ensure proper mounting and adequate ventilation
- Comply with all applicable electrical safety standards