Product Introduction

LDZ14501002.260 is a high-voltage inverter power unit produced by SIEMENS, which belongs to the Robin Kang series. The following is a detailed introduction to the power unit:
Main use
This power unit is usually used in industrial automation control systems. The industrial control computer summarizes, analyzes and organizes various information collected by sensors and local area networks to achieve the integration of information management and automatic control. It is suitable for industrial application scenarios that require high efficiency and precise control, such as petrochemicals, heavy loads and other fields.

Technical features
Structure: Each power unit is completely consistent in structure and can be interchanged. It is a basic AC-DC-AC single-phase inverter circuit.
Rectification: The rectifier side uses six two-tubes to achieve three-phase full-wave rectification.
Inversion: The required waveform can be obtained by sinusoidal PWM control of the IGBT inverter bridge.
Power supply: The input side is powered by a phase-shifting transformer (H-class insulation), and each power unit bears the full motor current, 1/6 (or 1/8) of the phase voltage, and 1/18 (or 1/24) of the output power. Each of the 18 (or 24) units has its own independent three-phase input winding on the transformer, and the power units and the secondary windings of the transformer are insulated from each other.
Multiplexing: The secondary winding adopts the extended triangle connection method, the purpose is to achieve multiplexing and reduce the harmonic components of the input current. The 18 (or 24) secondary windings are divided into three-phase groups.
Rectification method: The number of power units will vary according to the power and voltage levels. The larger the power and the higher the voltage level, the more units there are. The secondary winding of the phase-shifting transformer is divided into three groups, forming a 30 (or 48) pulse rectification method. This multi-stage phase-shifting superposition rectification method can greatly improve the current waveform on the grid side, so that the grid side power factor under load is close to 1, the input current harmonic component is low, and the measured total harmonic component of the input current is less than 5%.

Function
Board function: Take power from the DC bus of the power unit and output 24V DC power for the unit control board.
Board interface: Input interface: Connect to the positive and negative DC bus of the power unit. Output interface: 24VDC output, connected to the unit control board.
Control signal: Receive the signal of the main control system and provide control signals to the driver board.
Fault monitoring: Perform real-time fault monitoring and report fault information to the main control system.
Power supply function: Supply power to the unit driver board.

Interface details
Fiber optic interface: Communicate with the main control system.
24V power input interface: Connect to the power board.
Drive signal interface (Top1, Top2, Lock): Connect to the driver board.
15V power output interface: Connect to the driver board to power the driver board.
Overvoltage and undervoltage detection interface: Connect to the positive and negative bus of the unit.
Phase loss detection interface: Connect to the fuse auxiliary switch.
Overheat detection interface: Connect to the temperature detection switch.
Power-on thyristor drive signal interface: Connect to the power-on thyristor gate.
Bypass thyristor drive signal interface: connected to bypass thyristor gate.
Bypass OK signal detection interface: connected to bypass OK board.

Control: Robincon power unit can control the operation of the motor, including voltage, frequency and other parameters, so as to achieve efficient and stable operation of the motor. This control capability is crucial to improving production efficiency and product quality.

High efficiency and energy saving: By optimizing power electronics technology and advanced control algorithms, Robincon power unit can significantly reduce energy consumption and improve energy utilization. This is of great significance for reducing production costs and achieving sustainable development.

Fault protection: Robincon power unit has built-in multiple fault protection mechanisms, such as overcurrent, overheating, overload and other protections. When an abnormal situation is detected, the unit can automatically take measures to prevent the fault from expanding and protect the safety of power equipment and systems.

Remote and communication: Robincon power unit has remote input and output functions and communication networking functions, which can realize remote and real-time communication. This allows users to easily understand the operating status of the equipment and find and solve problems in time.

Output voltage margin and bypass circuit: In order to improve the redundancy and reliability of the system, the Robincon power unit takes the output voltage margin into consideration in the design, and adds a bypass circuit to each unit. When a unit fails, the bypass circuit can automatically start, causing the unit to exit operation, while adjusting the algorithm to ensure that the motor continues to operate stably.

Usage scenarios
Automation equipment on the production line: In various automation equipment on the production line, such as robots, conveyor belts, processing machine tools, etc., the Robincon power unit can control the operation of the motor, improve production efficiency and product quality, and reduce energy consumption and maintenance costs.

Power regulation equipment: The Robincon power unit can be used in power regulation equipment to achieve the control and distribution of electric energy. This is of great significance for the stable operation of the power system and the efficient use of energy.

New energy power generation system: In wind power generation and solar power generation systems, the Robincon power unit plays an important role. It can convert and process the electric energy generated by wind turbines or solar panels to meet the access requirements of the power grid. This helps to improve the efficiency and stability of new energy power generation and achieve clean utilization and sustainable development of energy.

Industrial control field: In the fields of industrial control such as oil, gas, water, and mining, the Robincon power unit also plays an important role. It can provide stable and reliable power drive for various mechanical equipment to ensure efficient operation of the equipment. At the same time, its control capability and fault protection mechanism also help to improve the safety and reliability of the system.

Electric vehicle and battery charging system: In electric vehicles and battery charging systems, the Robincon power unit is responsible for converting the AC power in the power grid into DC power that can charge the battery. This helps to improve the charging efficiency and safety of electric vehicles and promote the development of the electric vehicle industry.

The LDZ14501002.260 power unit is a high-performance, high-reliability high-voltage inverter power unit produced by Siemens, suitable for various industrial automation control systems.

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