I. Introduction to the All-Digital Low-Voltage Frequency Conversion Feedback System
This product is a fully digital, low-voltage variable-frequency feedback system specifically designed for industrial automation control, making it particularly suitable for the efficient and stable operation of heavy-duty equipment such as mine hoists.
1. System Components
- Signal System: Responsible for signal input and processing, connected to the operator console, and communicates with the host computer via the RS232 interface.
- Control console: Used for manual operation and system control.
- Host computer: Performs system monitoring and management.
- Master PLC (Programmable Logic Controller): The core control unit, communicating with other devices in the system via the RS485 bus to achieve comprehensive system control.
- Main motor (M): The system's primary power source.
- Speed sensor motor: Used to detect the rotational speed of the main motor.
- Gear reducer: Reduces the speed of the main motor while increasing torque.
- Brake Station: Engage the system's braking mechanism when necessary.
- Mine hoist: The core equipment under control, used for lifting materials or personnel in mines.
- Low-voltage power distribution cabinets, frequency conversion cabinets, and regenerative cabinets: responsible for power supply, frequency conversion control, and energy feedback.
- 2#Master PLC: Auxiliary control unit, working in coordination with the master PLC.
II. Workflow
1. Signal Input: The signaling system collects various signals and transmits them to the control console.
2. Operation and Monitoring: The operator console transmits signals to the host computer and the master PLC, with the host computer performing monitoring and the master PLC executing logic control.
3. Main motor drive: The master PLC controls the operation of the main motor, while the tachometer motor detects the rotational speed and feeds back the information to the master PLC.
4. Deceleration and Braking: The output from the main motor is slowed down via a gearbox, and the brake station applies braking when necessary.
5. Mine hoist operation: After being slowed down, the power drives the mine hoist to function.
6. Power Management: The low-voltage power distribution cabinet supplies electricity, the variable-frequency cabinet performs frequency conversion control, and the energy-recovery cabinet enables energy feedback.
III. Product Features
Fully digital control: Leveraging advanced digital control technology to ensure precise and stable system operation.
Low-voltage variable-frequency technology: By using frequency conversion technology to adjust motor speed, it achieves energy savings and reduced consumption.
Energy feedback function: Excess energy in the system can be fed back into the power grid, enhancing energy utilization efficiency.
High degree of automation: Integrated with PLC control to enable automated operation and monitoring of the equipment.
Product Advantages
- High efficiency and energy savings: The inverter technology and energy regeneration function significantly reduce energy consumption.
- Stable operation: Fully digital control and automated design ensure the system operates reliably over the long term.
- Easy maintenance: The modular design simplifies maintenance and troubleshooting.
- High safety: Multiple protection mechanisms (such as brake stations) ensure the safety of both equipment and personnel.
Product Features
- Motor Control: Precisely regulate the speed and torque of the main motor.
- Signal Processing: Real-time processing and transmission of system signals, ensuring the accurate execution of control commands.
- Monitoring and Management: The host computer provides real-time monitoring of system status, enabling convenient remote management.
- Braking and Protection: Quickly apply brakes in emergency situations to safeguard both equipment and personnel.
4. Product Applications
This system is primarily designed for the automated control of mine hoists, utilizing variable-frequency technology and energy-feedback techniques to achieve efficient and safe lifting of materials or personnel.
Mine hoisting: Used for lifting materials or personnel in mines, enhancing operational efficiency and safety.
Heavy-duty industrial equipment: Ideal for heavy-duty industrial machinery that requires precise control and efficient operation.
Energy Management: Plays a vital role in scenarios requiring energy conservation and efficient energy management.
Keywords
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Fully digital low-voltage variable frequency feedback
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