
Belt Conveyor Drive and Control System Solution
Belt conveyors are a common material handling device widely used in mining, chemical, and building materials industries. Traditional low-speed transmission systems dominated by asynchronous motors suffer from complexity, high failure rates, elevated operating costs, and low efficiency. In contrast, low-speed permanent magnet direct-drive synchronous motors offer advantages such as simplified system architecture, high reliability, and superior efficiency, making them ideal for various low-speed direct-drive applications. By eliminating mechanical components like fluid couplings and multi-stage pulleys, the adoption of low-speed permanent magnet direct-drive systems fully leverages these benefits. With advancements in motor technology, power electronics, and information technology, demands for higher motor efficiency, system efficiency, automated control, and process monitoring continue to rise. As the primary power source for drive systems, low-speed permanent magnet synchronous motors are evolving toward specialization, high performance, lightweight design, and mechatronic integration. The Wolong belt conveyor permanent magnet direct-drive system comprises a permanent magnet direct-drive motor, a dedicated frequency converter, and a system control cabinet. The system topology includes the Wolong iMotorLinx Shunzhi Cloud Industrial Internet Platform, WD200 series high-performance general-purpose inverters, ECC variable frequency control cabinets with high-performance PLCs, wired/wireless integrated temperature-vibration sensors, and permanent magnet direct-drive motors. The TYCP5 series low-speed permanent magnet motors for belt conveyors provide a direct-drive solution tailored for this industry. By directly coupling to the conveyor belt without intermediate components like gearboxes or fluid couplings, it significantly improves operational efficiency and achieves energy savings and emission reductions. Compared to traditional solutions involving asynchronous motors with gearboxes or self-starting asynchronous motors with fluid couplings and gearboxes, this approach features fewer transmission stages and higher efficiency. The dedicated frequency converter employs advanced motor control algorithms matched with Wolong high-efficiency permanent magnet motors. Utilizing vector control, the controller ensures precise speed regulation with high reliability, superior performance, strong scalability, multi-motor support, and easy cabinet assembly. It supports installation of reactors and filter devices, preventing grid shock or interference while meeting diverse operational requirements. The system control cabinet centrally manages all internal equipment, collects system data, and provides real-time protection. Regarding product specifications, the TYCP5 series covers frame sizes 400 through 800, power ratings from 15 to 900kW, and offers a complete selection parameter table across four speed grades: 48, 60, 75, and 90 r/min. Data includes rated currents at 380V and 660V, efficiency ranging from 90.0% to 95.5%, power factor 0.96, rated frequency from 12 to 45Hz, rated torque, maximum torque ratio 1.8, weight, and compatible WD200-T3 and WD200-T6 inverter models for each specific model. Motor mounting and external dimensions correspond to center heights 400, 450, 500, 560, 630, 710, and 800, providing A, B, C, D, E, F, G, H, and K mounting dimensions along with AB, BB, HD, and L external dimensions. Items marked with an asterisk represent the maximum specifications for that center height. If no suitable standard model exists for required mounting methods, cooling types, mounting dimensions, or external dimensions, custom designs are available upon request. The WD200 series high-performance vector inverter is Wolong's next-generation general-purpose inverter, covering power ranges from 0.75kW to 1000kW. It supports four power supply types and is compatible with asynchronous motors, permanent magnet synchronous motors, and synchronous reluctance motors. Voltage-frequency parameters include three-phase 380V to 480V, three-phase 660V to 690V, and frequencies of 50Hz/60Hz. It tolerates voltage imbalance below 3%, frequency fluctuations of ±5%, and distortion rates compliant with IEC61800-2 standards. Output frequency ranges from 0Hz to 600Hz. Installation requirements specify altitudes below 1000 meters; derating applies above 1000 meters, with a 1% derate for every 100 meters of elevation. Ambient temperature range is -10°C to +50°C, with derating allowed above 40°C. Maximum no-load operating temperature is 60°C. Humidity tolerance is 5%RH to 95%RH (non-condensing). Vibration tolerance is 5.9m/s² (0.6G) between 9Hz and 200Hz. Storage temperature ranges from -30°C to +60°C. The unit uses wall-mounted installation with forced air cooling and offers an IP31 protection rating; higher ratings are available via customization. Comprehensive benefit analysis of the permanent magnet direct-drive system based on a 400kW motor system with a total load shaft power of 1025kW: - **Variable Frequency Permanent Magnet Direct-Drive Solution** (400kW motor plus dedicated inverter): Total transmission efficiency 93.3%, total input active power 1098.6kW, motor power factor at load point 0.95, total input apparent power 1156.4kW. - **Original Solution** (400kW motor plus fluid coupling and gearbox): Total transmission efficiency 78.6%, total input active power 1304.1kW, power factor 0.826, total input apparent power 1578.8kW. - **Energy Saving Rate**: 15.8%; Annual electricity savings: 108.5 million kWh. Data in this sample may vary due to technological advancements.
Use Cases:Belt conveyors for new installations and energy-efficient upgrades in mining, chemical, and building materials industries. Designed for long-distance, high-capacity transport with heavy-load startup and multi-motor drive configurations.
Solve pain points
Solution Composition
PROCESS
Service Process
- 01
STEP01
Site Survey and Conveying Load Assessment
Measure on-site conveying distance, throughput, belt speed, and total shaft power under load. Evaluate the efficiency losses, failure rates, and maintenance costs of the original asynchronous motor with fluid coupling and gearbox drive system. Confirm parameters for heavy-load start-up and multi-drive operating conditions.
- 02
STEP02
Direct Drive System Selection & Matching
Based on the total shaft power and target speed, select the motor frame size and power rating from the TYCP5 series 48, 60, 75, 90 r/min speed options. Then, match the WD200-T3 and WD200-T6 VFD specifications to each model per the catalog, and verify the mounting dimensions, overall dimensions, and interfaces corresponding to the center height.
- 03
STEP03
Mechanical and Electrical Retrofit Implementation
Remove the hydraulic coupling, multi-stage belt pulley, and gearbox; directly couple the permanent magnet direct-drive motor to the conveyor drive drum. Install the complete ECC variable-frequency control cabinet and high-performance PLC, lay power and control cables, and add wired/wireless temperature-vibration integrated sensors.
- 04
STEP04
Smart Drive-Control Integration Testing and Energy Efficiency Validation
Complete vector control parameter tuning, heavy-load start-up, and multi-machine power balancing. Connect to the Wolong iMotorLinx Shunzhi Cloud Industrial Internet Platform to configure real-time monitoring and alert rules. Compare transmission efficiency, active input power, power factor, energy-saving rate, and annual electricity savings before and after retrofitting, and generate a validation report.
BENEFITS
Plan Benefits
Returns01
Drive Chain Simplification: The permanent magnet direct-drive motor directly drives the belt conveyor, eliminating intermediate components such as gearboxes, fluid couplings, and multi-stage pulleys. This results in a simple system structure, high reliability, and reduced maintenance requirements.
Returns02
Significant energy savings: Using a 40 kW system with a total load shaft power of 1025kW as an example, the variable-frequency permanent magnet direct-drive solution achieves a total transmission efficiency of 93.3%, compared to 78.6% for the original motor + fluid coupling + gearbox setup. Total input active power drops from 1304.1kW to 1098.6kW, the load-side motor power factor improves from 0.826 to 0.95, and total input apparent power decreases from 1578.8kW to 1156.4kW. This delivers a 15.8% energy saving rate, reducing annual electricity consumption by 108.5 million kWh.
Returns03
Excellent start-up and speed regulation: Vector control enables precise speed regulation, delivering 0.5Hz output with 150% rated torque (SVC) and 200% at 0Hz (FVC). Superior low-frequency performance meets the demands of heavy-load smooth start-ups and variable throughput.
Returns04
Reliable Operation: The variable frequency drive achieves a peak efficiency of 98%, with an output frequency range from 0 to 600 Hz. It can be equipped with reactors and filtering devices to prevent grid shock and interference with surrounding equipment, making it ideal for harsh environments like mining sites.
Returns05
Intelligent Operations & Maintenance: Real-time monitoring, spectrum analysis, and remote fault diagnosis via integrated temperature-vibration sensors and the Shunzhi Cloud Platform. Multi-channel precise alerts delivered via email, SMS, HTTP, and HTTPS.
Returns06
High customization capability: Wide coverage from frame size 400 to 800 and power range 15 to 900 kW. Custom design available for installation method, cooling method, and dimensions when no standard specification matches user requirements.
Calculation Basis: Energy efficiency grades and efficiency limits are referenced from GB 18613-2020 "Limits of Energy Efficiency and Energy Efficiency Grades for Electric Motors" and IEC 60034-30-1:2014. Product rated efficiency values are sourced from Wolong Electric Drive, JUMO, original product catalogs, and factory test reports. The energy-saving rate range is derived from statistical analysis of actual on-site measurements before and after retrofitting in Panpu's delivered projects under identical operating conditions. Actual performance may vary based on load rate, annual operating hours, and specific operational conditions.
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