1C31189G01 speed detection module

The 1C31189G01 is a speed detection module (also commonly referred to as a speed measurement card) in Emerson's Ovation Distributed Control System (DCS). It is often used for monitoring the rotational speed of equipment in industrial scenarios such as nuclear power plants. Below is its detailed information:

1. Core Basic Information

Brand and Series Affiliation: It belongs to Emerson and is classified under the Ovation series, which is specifically designed for process industrial control and compatible with various heavy-industry scenarios.
Core Positioning: As a speed detection module, its core function is to real-time collect rotational speed data of rotating mechanical equipment, transmit accurate feedback to the control system, ensure stable operation of the equipment, and optimize performance. It is also labeled as a DCS pulse input module in procurement announcements.

2. Key Technical Specifications

Parameter Category	Specific Values
Operating Voltage	220V AC, and also compatible with 24V DC power supply.
Input-Related	Input current: 2.0A; Input signal range: 4–20mA.
Output Frequency	30kHz.
Load Capacity	15kW.
Communication Interfaces	Supports RS-485 and CANopen; some documents also mention compatibility with RS232, Ethernet, etc.
Environmental Adaptability	Operating temperature: -20°C to +70°C; Protection class: IP20, suitable for normal-temperature and normal-pressure industrial environments.
Detection Capability	Equipped with 8 channels for 4-speed detection, meeting high-precision rotational speed measurement needs.