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| Company Information | ||||||||
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| Mobile | +8613666084105 | |||||||
| +8613666084105 | ||||||||
| 13666084105 | ||||||||
| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Product Introduction
The Invensys Triconex 3381 Pulse Input (PI) Module is a high-performance, high-frequency input module designed to interface with various pulse-generating sensors in industrial automation systems. It offers six channel-isolated inputs compatible with magnetic, active, and open collector sensors. This module is integral to monitoring and controlling rotating equipment, such as turbines and compressors, by accurately measuring speed and rotational data.
The 3381 PI Module detects voltage transitions from speed sensors, processing each input transition to generate precise frequency measurements (revolutions per minute). These measurements are then transmitted to the main processors for real-time monitoring and control. The module’s ability to handle high-frequency inputs and its compatibility with various sensor types make it a versatile component in safety-critical applications.
Product Specifications
| Parameter | Specification |
|---|---|
| Model | Invensys Triconex 3381 Pulse Input Module |
| Input Channels | 6, channel-isolated, common ground |
| Input Type | Differential |
| Sensor Compatibility | Magnetic, active, open collector |
| Maximum Operating Voltage | ±33 V DC |
| Minimum Operating Voltage | – Differential: 500 mV P-P (2 Hz to 32,000 Hz) – 1 V P-P (0.5 Hz to 2 Hz) |
| Speed Range | 0 to 32,000 RPM |
| Input Frequency Range | 0.5 Hz to 32 kHz |
| Duty Cycle | 20% to 80%, or 10 µs minimum pulse width |
| Maximum Continuous Slew Rate | – 4,000 Hz/sec with 60 gear teeth – 4,000 RPM/sec with 60 gear teeth |
| Number of Gear Teeth | 1–255 |
| Termination Resistor | Baseplate configurable |
| Pull-up Resistor | Baseplate configurable |
| Resolution | 24 bits |
| Absolute Error | – ±0.01% (2,000 to 32,000 Hz) – ±0.1% (0.5 to 2,000 Hz) |
| Measurement Algorithm | Gear multiple tracking |
| Diagnostic Functions | Precision reference test |
| Minimum Scan Update Rate | 20 ms |
| Functional-to-Protective-Earth Isolation | 500 V DC, minimum |
| Functional-to-Functional-Earth (Logic) Isolation | 800 V DC, minimum |
| Operating Temperature | -40°C to +70°C |
| Storage Temperature | -40°C to +85°C |
| Humidity Range | 5% to 95% RH non-condensing |
| Dimensions (H x W x D) | 220 x 44 x 169 mm |
| Weight | 1.5 kg |
| Mounting Type | DIN Rail |
Product Applications
The Triconex 3381 Pulse Input Module is widely utilized in industrial settings requiring precise monitoring of rotational speeds and pulse signals. Key applications include:
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Turbine and Compressor Monitoring: Accurately measures the speed of turbines and compressors, ensuring optimal performance and safety.
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Rotating Equipment Overspeed Protection: Provides real-time speed data to prevent equipment from exceeding safe operational limits.
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Flow Measurement Systems: Interfaces with flow meters that generate pulse outputs, facilitating accurate flow rate monitoring.
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Conveyor Belt Speed Monitoring: Ensures proper material handling by monitoring the speed of conveyor systems.
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Industrial Automation: Integrates with various automated systems requiring precise pulse input measurements for control and monitoring.
Its ability to handle high-frequency inputs and compatibility with different sensor types make it versatile across multiple industrial applications.
Product Advantages
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High-Frequency Input Handling: Capable of processing input frequencies up to 32 kHz, suitable for high-speed applications.
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Versatile Sensor Compatibility: Supports magnetic, active, and open collector sensors, offering flexibility in sensor selection.
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High Resolution and Accuracy: Features 24-bit resolution with an absolute error margin as low as ±0.01%, ensuring precise measurements.
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Robust Diagnostic Functions: Includes precision reference tests to maintain measurement integrity and system reliability.
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Wide Operating Temperature Range: Designed to operate effectively in harsh environments, withstanding temperatures from -40°C to +70°C.
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Compact and Durable Design: Its compact dimensions and sturdy construction facilitate easy integration into existing systems while ensuring longevity.
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Rapid Response Time: With a minimum scan update rate of 20 ms, it provides timely data for real-time monitoring and control.
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Enhanced Safety Features: Offers functional isolation to protect against electrical faults, enhancing overall system safety.
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Configurable Termination and Pull-up Resistors: Allows customization to match specific application requirements, improving flexibility.
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Reliable Performance in High-Vibration Environments: Suitable for use in settings with significant mechanical vibrations, maintaining measurement accuracy.
Latest News & Updates
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“Invensys Triconex 3381: Enhancing Industrial Automation with High-Frequency Pulse Input Monitoring”
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“New Applications of Triconex 3381 in Modern Turbine Control Systems”
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“Advancements in Pulse Input Modules: A Closer Look at Triconex 3381”
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“Ensuring Safety in Industrial Operations with Triconex 3381’s Diagnostic Capabilities”
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“Integrating Triconex 3381 Pulse Input Module in Smart Manufacturing Systems”
FAQ
1. What is the function of the Triconex 3381 Pulse Input Module?
The Triconex 3381 Pulse Input Module is designed to receive and process pulse signals from various pulse-generating sensors. It measures the speed and rotational data of machinery like turbines, compressors, and flow meters, providing crucial information to control systems for monitoring and protection purposes.
2. How many channels does the Triconex 3381 have?
The Triconex 3381 Pulse Input Module features six channel-isolated inputs, which are capable of handling pulse signals from multiple sensors simultaneously.
3. What types of sensors are compatible with the Triconex 3381 Pulse Input Module?
The module is compatible with magnetic, active, and open collector sensors, making it versatile and suitable for a wide range of industrial applications.
4. What is the maximum input frequency for the 3381 module?
The maximum input frequency that the Triconex 3381 Pulse Input Module can handle is 32,000 RPM or 32 kHz, which allows it to process high-frequency pulse signals from fast-moving machinery.
5. What is the operating temperature range of the Triconex 3381 Pulse Input Module?
The operating temperature range of the module is -40°C to +70°C, allowing it to function in extreme industrial environments.
6. Can the 3381 module be used in hazardous environments?
Yes, the Triconex 3381 module is designed to work reliably in harsh industrial conditions, including environments with high temperatures, vibration, and electrical interference. However, it is important to ensure the module is installed and used within its specified environmental parameters.
7. How accurate is the speed measurement of the Triconex 3381?
The accuracy of the Triconex 3381 Pulse Input Module is very high. It has a 24-bit resolution, with an absolute error margin as low as ±0.01% for frequencies ranging from 2,000 Hz to 32,000 Hz.
8. What is the diagnostic capability of the 3381 module?
The Triconex 3381 Pulse Input Module includes diagnostic functions such as precision reference tests to verify the accuracy and integrity of the pulse input data, ensuring that the system operates reliably.
9. How is the 3381 module mounted?
The Triconex 3381 Pulse Input Module is typically mounted on DIN rail and is designed for easy integration into existing industrial control systems.
10. What is the weight and dimensions of the Triconex 3381 module?
The Triconex 3381 Pulse Input Module has the following dimensions and weight:
- Dimensions (H x W x D): 220 x 44 x 169 mm
- Weight:1.5 kg.
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