Overview
The Triconex 3481 Analog Output Module provides precise control of analog output signals in critical automation systems. Moreover, it supports hot-spare operation, allowing a backup module to remain active during maintenance or replacement. Each module is mechanically keyed to prevent improper installation in configured baseplates, ensuring safe and reliable operation. The AO3481 is compatible with multiple baseplates, including 2481 for typical applications, 2483 for HART communication, 2483A for hazardous locations, and DO External Termination Baseplate for use with the 9863-610 external panel.
Key Features
- 4 Output Points: DC-coupled, commoned-return outputs with step function 0–2 mA.
- Output Range: 4–20 mA nominal with 0–22 mA over-range capability.
- Accuracy: Less than 0.25% full-scale range (FSR) from 0°C to 70°C.
- Triple Modular Redundancy (TMR): Ensures maximum fault tolerance and operational safety.
- Resolution: 12-bit precision for fine control.
- Diagnostics: Forced-switch diagnostic (FSD) verifies module and loop performance.
- External Loop Power: Reverse-voltage protected; 24 VDC nominal, 32 VDC maximum.
- Over-Range Protection: Continuously protects against 0–36 VDC conditions.
- Switch Time: 1 ms typical, 3 ms maximum on leg failure.
Technical Specifications
| Feature | Specification |
|---|---|
| Points | 4, commoned-return, DC-coupled |
| Isolated Points | None |
| Output Current Range | 4–20 mA nominal, 0–22 mA over-range |
| 0 mA Output Capability | Step function <2 mA |
| Accuracy | <0.25% of FSR (4–20 mA) from 0–70°C |
| Type | TMR |
| Resolution | 12 bits |
| Diagnostic | Forced-switch diagnostic (FSD) |
| External Loop Power | 24 VDC nominal, 32 VDC max, reverse-protected |
| Output Loop Power Requirements | 300Ω @ >16 VDC, 1 A min; 500Ω @ >20 VDC, 1 A min; 700Ω @ >24 VDC, 1 A min; 800Ω @ >28 VDC, 1 A min |
| Over-Range Protection | 0–36 VDC continuous |
| Switch Time on Leg Failure | 1 ms typical, 3 ms maximum |
Typical Applications
The AO3481 module integrates into Tricon TMR control systems for process automation, analog control loops, and HART-compatible instrumentation. Moreover, it suits hazardous locations when paired with the 2483A or DO External Termination Baseplate, ensuring safe operation in critical environments.
FAQ
Q1: Is the AO3481 module brand new and ready for shipment?
Yes, it is brand new, original, stocked, and ships in 3 days–2 weeks depending on order quantity.
Q2: What shipping methods are available?
We provide DHL, FedEx, and UPS for worldwide delivery with full tracking.
Q3: Can the module handle over-range signals?
Yes, the AO3481 supports 0–22 mA over-range and protects continuously up to 36 VDC.
Why Choose This Model
The AO3481 delivers high reliability through TMR architecture and 12-bit resolution. Moreover, its built-in diagnostics and hot-spare capability reduce downtime and maintenance effort. In addition, compatibility with HART systems ensures seamless integration into modern automation networks.
Installation Guide
Install the AO3481 only in compatible baseplates (2481, 2483, 2483A, or DO External Termination). Connect external loop power within 24–32 VDC limits. Ensure mechanical keys align correctly to prevent installation errors. Moreover, verify loop resistance and power requirements to maintain accurate output performance.
Details
| Weight | 1.2 kg |
|---|
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