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Home > Electrical & Electronics > Electrical Control System > ALSTOM MVTU11K1CD0751G Serial Control Module

ALSTOM MVTU11K1CD0751G Serial Control Module

ALSTOM MVTU11K1CD0751G Serial Control Module thumbnail-3

ALSTOM MVTU11K1CD0751G Serial Control Module photo-1

ALSTOM MVTU11K1CD0751G Serial Control Module photo-2

ALSTOM MVTU11K1CD0751G Serial Control Module photo-3

Negotiable MOQ: 1 Piece (Price negotiable depending on order volume and customization)

Key Specifications

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Material:

Other, Global universal model

Condition:

Other, Global universal model

Task:

Other, Global universal model

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Guizhou Yuanmiao Automation Equipment Co., Ltd.

Payment & Shipping

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Port of Shipment:

China

Delivery Detail:

Delivery time depends on order quantity.

Product Details
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Material Other, Global universal model

Condition Other, Global universal model

Task Other, Global universal model

Mathematical Model Other, Global universal model

Signal Other, Global universal model

Customized Non-Customized

Structure Other, Global universal model

Power 1800W

Output current range 0-86A

Input voltage 90-300Vac

Output voltage 21-29Vdc

Efficiency ≥92%

Operating temperature -40℃ to +55℃

Dimensions 367×129×42.4mm

ALSTOM MVTU11K1CD0751G

Functional Features

Diversified Control Functions：Capable of implementing sequential control, ladder logic control, accident recall processing, analog-digital conversion, and input/output signal processing, meeting the needs of various industrial control scenarios.
High Efficiency：Adopts advanced high-frequency pulse width modulation (PWM) edge resonance technology, significantly improving efficiency.
Superior Performance：Features high voltage regulation accuracy, fast dynamic response, low output noise, strong anti-interference capability, and a wide operating temperature range, enabling stable operation in environments from -40°C to +55°C.
Intuitive Display：Working status can be displayed via a digital LCD panel or Chinese LCD, clearly and intuitively showing parameters such as voltage and current.
Comprehensive Protection Functions：Equipped with overcurrent and short-circuit protection, input overvoltage and undervoltage protection, and output overvoltage protection. The module has built-in constant current charge and floating charge switching circuits, supporting manual or automatic control.
Convenient Monitoring：The monitoring interface can monitor the module's working status, perform on/off control and constant/floating charge control, and is equipped with an automatic current sharing bus interface, constant charge bus interface, and system battery current limiting bus interface.

Technical Parameters

Power: 1800W
Output Current Range: 0-86A
Input Voltage: 90-300Vac
Output Voltage: 21-29Vdc
Efficiency: ≥92%
Mean Time Between Failures (MTBF): 400,000 hours
Dimensions: 367×129×42.4mm

Working PrincipleI. Core Control Logic Principle

Signal Processing and Control Flow

Input Signal Reception：Receives control commands from upper-level computers (PLC, SCADA systems) or other devices via serial communication interfaces (such as RS-232/485, CAN bus), while collecting real-time data (such as analog and switching signals) from field sensors (such as current and voltage sensors).
Signal Conversion and Calculation：The built-in processor performs A/D conversion (analog to digital) on input signals and conducts real-time calculations based on preset programs like ladder logic and function block diagrams. For example, it judges the operating status of equipment according to input voltage/current signals or generates control logic based on commands from upper-level computers.
Output Signal Control：Controls the actions of external actuators (such as motors, valves, relays) through D/A conversion (digital to analog) or switching output. For instance, it outputs PWM (Pulse Width Modulation) signals to adjust motor speed based on calculation results or outputs switching signals to control valve opening and closing.

Application of High-Frequency PWM Technology

Adopts high-frequency PWM modulation with edge resonance technology, achieving precise regulation of output voltage and current by quickly switching power devices (such as IGBTs) on and off. This technology reduces switching losses, improves efficiency (≥92%), and minimizes output noise to ensure the stability of control signals.

II. Power Management and Energy Conversion Principle

Input Power Processing

Supports a wide range of input voltages (90-300Vac). The internal power management circuit first filters and rectifies the input AC power into DC power. The filter circuit suppresses power grid interference (such as surges and harmonics) to ensure stable module operation.

Output Voltage Stabilization and Regulation

Adjusts the rectified DC power to a stable output voltage (21-29Vdc) through a DC-DC conversion circuit, and real-time adjusts the PWM duty cycle via closed-loop feedback control (such as sampling the output voltage and comparing it with the reference voltage) to achieve high voltage regulation accuracy (within ±1%) and fast dynamic response.
The output current range is 0-86A, which can be automatically adjusted according to load requirements. When the load current exceeds the set threshold, the overcurrent protection mechanism is triggered.

III. Redundancy and Protection Mechanism Principle

Hardware Redundancy Design

Although the module does not explicitly mention full-system redundancy, key circuits (such as power modules and communication interfaces) may adopt redundancy designs (such as dual power inputs and backup communication links), automatically switching to the backup circuit when the main circuit fails to ensure continuous control.

Multiple Protection Functions

Overcurrent/Short-Circuit Protection：Monitors output current in real time through current detection resistors or Hall sensors. When the current exceeds 86A or a short circuit occurs, power devices are immediately turned off to prevent module damage.
Input Overvoltage/Undervoltage Protection：Detects whether the input voltage is within the range of 90-300Vac and automatically cuts off the input when it exceeds the range to prevent internal components from being damaged by high voltage or control anomalies caused by undervoltage.
Output Overvoltage Protection：Samples the output voltage through a voltage divider circuit. If it exceeds the 29Vdc threshold, the protection circuit is triggered to limit the voltage, avoiding overvoltage damage to load equipment.

Application Cases

Industrial Automation Production Line Control：In automobile manufacturing production lines, it can be used to precisely control equipment such as the movements of robotic arms and the speed of conveyor belts. By receiving control signals from PLCs, it adjusts the speed and positions of motors to ensure that components are accurately transported and assembled, improving production efficiency and product quality. For example, it controls robotic arms to grasp and place automobile components according to preset trajectories, or precisely adjusts the speed of conveyor belts based on production rhythms to make each process connect smoothly.
Motor Speed Regulation System：In textile factories, it is used to control the speed of textile motors. According to different textile process requirements, it realizes speed control of equipment such as weaving machines and spinning frames by adjusting motor speed, thereby producing textiles of different specifications and qualities. Meanwhile, it can also monitor the operating status of motors in real time, promptly detect faults such as motor overload and overheating, and ensure the continuity of production.
Chemical Process Control：In petrochemical enterprises, it controls various pumps and valves. For example, it precisely adjusts the flow rate of feed pumps based on parameters such as pressure and temperature in the reactor, controls the input speed of materials, and ensures that chemical reactions proceed under suitable conditions. It can also be used to control the opening of valves, adjust the flow rate and pressure of fluids in pipelines, and ensure the safety and stability of chemical production processes.
Power System Monitoring and Protection：In substations, it is used to monitor the operating status of power equipment, such as the oil temperature and winding temperature of transformers, and the switching status of circuit breakers. When abnormal conditions are detected, it promptly sends alarm signals and controls the action of protection relays according to preset logic to cut off the faulty circuit, prevent the expansion of accidents, and ensure the reliable operation of the power system.
Rail Transit On-Board Equipment Control：On trains, it controls on-board air conditioning systems, lighting systems, etc. According to environmental parameters such as temperature and humidity in the carriages, it automatically adjusts the cooling or heating power of the air conditioners to provide passengers with a comfortable riding environment. At the same time, it can also control the brightness of the lighting system, automatically adjusting the light brightness according to different time periods and the light conditions in the carriages to achieve the dual goals of energy saving and comfortable lighting.