Metso Valmet A413050 RSU6 Serial Controller Unit Module

I. Overview

The Metso A413050 is an industrial-grade high-precision analog signal acquisition module, mainly designed to be compatible with the control systems of Metso crushing and screening equipment (such as cone crushers, jaw crushers, heavy-duty conveyors, etc.). It undertakes the core functions of "on-site analog sensor signal acquisition for temperature, pressure, liquid level, etc. - signal filtering and amplification - standard signal transmission to the main controller". Its design focuses on "signal acquisition accuracy" and "ability to resist harsh environments" for heavy-duty industrial scenarios. It adopts high-precision signal conditioning circuits and a multi-layer electromagnetic shielding structure, which can effectively suppress mechanical vibrations, electromagnetic radiation, and dust interference in crushing workshops, ensuring the stability and accuracy of monitoring data for key physical quantities. It is widely used in industries with strict requirements for equipment operation parameter monitoring, such as mining, building materials, and metallurgy.

Compared with general-purpose analog acquisition modules, this module features "in-depth compatibility with Metso equipment protocols", "adaptability to multiple types of sensors", and "fault self-diagnosis". It can be directly integrated into Metso C100/C200 series control cabinets, enabling seamless connection with temperature sensors (e.g., PT100), pressure transmitters (e.g., 4-20mA type), and liquid level sensors. It provides accurate data support for overload protection and process optimization of crushing equipment, ensuring long-term stable operation of the equipment.

II. Technical Parameters

1. Basic Specifications

2. Electrical Performance

Power Supply Parameters:

• Supply Voltage: 24V DC ±15% (compatible with DC power supplies commonly used in industrial equipment);

• Rated Power Consumption: ≤5W (no-load); ≤10W (full-load signal acquisition);

• Power Isolation: Triple isolation (input - output - ground) with an isolation voltage of 2000V AC (for 1 minute, preventing power crosstalk and signal interference).

Analog Input Characteristics:

• Input Channels: 6 channels (supporting multiple types of sensors to meet different monitoring needs);

• Input Signal Types:

• RTD Input: Supports PT100 (-200°C ~ 850°C) and Cu50 (-50°C ~ 150°C) for temperature monitoring;

• Current Signal Input: 4-20mA DC (compatible with 2-wire/4-wire pressure and liquid level transmitters);

• Voltage Signal Input: 0-10V DC (adapted to some voltage-type sensors);

  (Note: Every 2 channels form a group, and the signal type can be independently configured via DIP switches)

• Input Accuracy:

• RTD Input: ±0.1°C (for PT100, within the range of 0°C ~ 100°C);

• Current Signal Input: ±0.1% FS (at 25°C ambient temperature);

• Voltage Signal Input: ±0.2% FS (at 25°C ambient temperature);

• Sampling Rate: 5Hz (per channel, meeting the monitoring needs of slowly changing parameters such as temperature and pressure);

• Filter Function: Built-in 5Hz low-pass filter to suppress high-frequency electromagnetic interference (e.g., noise generated by motor operation).

Communication Interface:

• Interface Type: RS485 (half-duplex, supporting bus-type topology);

• Supported Protocols: Modbus RTU (compatible with Metso Monitoring Protocol, an exclusive sub-protocol for Metso equipment);

• Communication Baud Rate: 9600bps ~ 115200bps (configurable via DIP switches or software);

• Address Range: 1-247 (slave address set via DIP switches, supporting multi-module bus mounting).

3. Environmental Adaptability Parameters

III. Functional Features

1. Multi-Type Signal Compatibility and High-Precision Acquisition

• Full-Scenario Sensor Adaptation: The 6 input channels support three types of signals: RTD (PT100/Cu50), current (4-20mA), and voltage (0-10V). They can be connected to the crusher's "temperature monitoring points" (e.g., bearing temperature, hydraulic oil temperature), "pressure monitoring points" (e.g., spindle pressure, feed inlet pressure), and "liquid level monitoring points" (e.g., hydraulic oil tank liquid level) in one stop. No additional modules need to be configured, simplifying in-cabinet wiring and sensor selection;

• Ultra-High Acquisition Accuracy: The RTD input accuracy reaches ±0.1°C (for the common temperature range of PT100), and the current signal accuracy is ±0.1% FS. It can accurately capture subtle changes in equipment operation parameters (e.g., an abnormal 1°C increase in bearing temperature), providing data support for early equipment fault warning and avoiding equipment overload damage caused by parameter monitoring errors.

2. Anti-Interference Design for Heavy-Duty Industry

• Triple Electrical Isolation: The power supply, input, and output circuits are isolated from each other (isolation voltage 2000V AC), which can effectively block the interference of surge voltage and electromagnetic radiation generated by the start-stop of the crusher motor on analog signals. This avoids temperature signal drift (e.g., PT100 measurement value fluctuation) or pressure signal distortion (e.g., 4-20mA signal fluctuation);

• Signal Conditioning and Filtering: Each input channel integrates a signal conditioning circuit, which can amplify and linearly compensate for weak sensor signals (e.g., milliohm-level resistance changes of PT100); the built-in 5Hz low-pass filter can filter out high-frequency electromagnetic noise (e.g., interference generated by frequency converter operation), ensuring stable and reliable acquired data.

3. Convenient Operation & Maintenance and Fault Diagnosis

• Full-Channel Status Indication: 14 LED indicators are installed on the front - power indicator (green, constant on indicates normal power supply), input signal indicators (6 channels, lit indicates normal signal access in the corresponding channel), communication indicator (red, flashing indicates normal communication), and alarm indicator (yellow, constant on indicates module fault). The signal acquisition and module working status can be quickly judged without an oscilloscope;

• Fault Self-Diagnosis and Alarm: Equipped with a built-in fault detection circuit, it can identify fault types such as "power overvoltage/undervoltage", "input signal overrange", "sensor open circuit/short circuit", and "communication interruption". It sends fault codes to the main controller via RS485 (e.g., E01 indicates power fault, E07 indicates PT100 open circuit, E13 indicates current signal overrange), and simultaneously triggers the yellow alarm light to stay on. When used with the Metso TP150 operation panel, the fault location and cause can be intuitively displayed, shortening the fault location time.

4. Exclusive Collaboration with Metso Equipment

• In-Depth Protocol Compatibility: Supports the exclusive monitoring protocol for Metso equipment, and can directly communicate with the Metso C100 main controller and TP150 human-machine interface (HMI) without additional communication driver programming. It realizes real-time data interaction between "sensor data - main controller - operation panel" (e.g., real-time display of crusher bearing temperature, setting of temperature alarm thresholds);

• Process Adaptation Optimization: Built-in calibration logic for sensors commonly used in Metso crushing equipment (e.g., PT100 temperature linear calibration, pressure transmitter zero compensation). No on-site manual calibration is required, simplifying the module debugging process; for the vibration scenario of crushing equipment, the PT100 input channel is optimized for vibration resistance to avoid measurement errors caused by poor cable contact;

• In-Cabinet Integration Optimization: Its size is adapted to the layout of Metso standard control cabinets. The DIN rail mounting method is compatible with Metso power modules (such as Metso A413200) and digital modules (such as Metso A413345), enabling modular stacked installation. This reduces space occupation inside the cabinet and lowers the complexity of system integration.

IV. Common Faults and Troubleshooting Methods