The Triconex 3511 Pulse Input (PI) Module provides precise and reliable high-frequency pulse measurements for industrial safety and control systems. It is optimized for non-amplified magnetic speed sensors commonly used in rotating equipment such as turbines, compressors, and motors. By detecting voltage transitions, the module calculates frequency or RPM with high accuracy, ensuring dependable speed monitoring in critical applications.
Key Features
- Precision Measurement for Rotating Equipment
- Detects voltage transitions and measures pulse counts with 1 microsecond resolution.
- Calculates frequency or RPM from accumulated pulse data over a defined time window.
- Triple Modular Redundancy (TMR)
- Uses three independent channels, each processing input signals separately.
- Employs data voting logic for maximum signal integrity and fault tolerance.
- Advanced Diagnostics
- Continuous diagnostics monitor each channel’s health and trigger Fault Indicators and chassis alarms when needed.
- Isolates channel faults automatically without affecting module functionality.
- Hot-Spare Capability
- Supports hot-spare replacement, allowing module change without system downtime.
- Optimized for Speed Measurement
- Fine-tuned specifically for speed and frequency monitoring; totalization is not supported.
Specifications
| Specification | Details |
|---|---|
| Model Number | 3511 |
| Type | TMR |
| Input Signals | 8, non-commoned |
| Resolution | 16 bits |
| Accuracy | 1000 Hz to 20,000 Hz, ±0.01% |
| Input Characteristics | AC Coupled, Balanced Differential |
| Update Rate | 25 ms (typical) |
| Impedance (Load) | >8 kΩ (20 kΩ typical) |
| Common Mode Range | -100 VDC to +100 VDC peak-to-peak |
| Normal Mode Range | 1.5 V to 200 V peak-to-peak |
| Overrange Protection | ±150 VDC (continuous) |
| Hysteresis | 150 mV (typical) |
| Wave Shape | Sine, square, pulse, etc. |
| Duty Cycle | 10% to 90% |
| Frequency Range | 20 Hz to 20,000 Hz |
| Current Range | 0–20 mA (250-ohm shunt) |
| Diagnostic Indicators | Input Status (per point), Module Status: PASS, FAULT, ACTIVE |
| Color Code | Light Purple |
Applications
- Rotating Equipment Monitoring
Designed for turbines, compressors, and other rotary machinery, providing accurate and stable speed data. - High-Frequency Sensing
Suitable for environments requiring frequency measurements from 20 Hz to 20,000 Hz with exceptional precision. - Industrial Safety Systems
Built with a fault-tolerant TMR architecture, ensuring continuous performance even when a channel fault occurs.
Advantages
- Delivers 16-bit resolution and ±0.01% measurement accuracy.
- Handles demanding industrial conditions with robust overrange and voltage protection.
- Accepts multiple signal types — sine, square, or pulse — offering excellent flexibility for integration.
Details
| Weight | 3.03 kg |
|---|
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