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1. Synchronous VFD's starting torque is large, which can reach 200% of the rated torque;

2. Belt VFD starts on ramp, which can reduce the damage to the belt and drum when starting;

3. Synchronous direct-driven VFD is efficient and energy-saving, and the power saving efficiency can reach more than 20%;

4. Synchronous direct-driven system eliminates the decelerator, hydraulic coupler and other equipment, so that the overall efficiency of the system can be increased to more than 95%;

5. Abundant communication functions. It can support CAN, RS485, PROFBUS, DP and other communication interface accesses, can communicate with the upper computer, the centralized control of the operation of multiple equipment, and can monitor the operation data transmitted to the ground dispatching station online;

6. Historical data storage. It can save the operation data of recent one year, and the data can be exported in EXCEL format, transformed into graphic mode through the software developed by Huaxin, which is convenient for understanding the historical working condition of belt conveyor.

1. Asynchronous VFD's starting torque is large, which can reach 150% of the rated torque;

2. Synchronous VFD's starting torque is large, which can reach 200% of the rated torque;

3. Belt frequency converter starts on ramp, which can minimize damage to the belt and drum when starting;

4. Synchronous direct-driven VFD is efficient and energy-saving, and the power saving effect can reach more than 20%;

5. Synchronous direct-driven system eliminates the decelerator, hydraulic coupler and other equipment, so that the overall efficiency of the system can be increased to more than 95%.

The BPQJ Series Mining Explosion-proof and Intrinsically-safe Combined Frequency Conversion Starter can be used for regulating the speed of mining belt conveyor motors, applicable to frequency conversion driving system of synchronous or asynchronous motors. This product belongs to two-quadrant working system and it can meet the starting and speed governing requirements of asynchronous motors for mining belt conveyors and scraper.

1. Ambient temperature: 0℃ - +40℃ (32°F to 104°F);

2. Maximum average relative humidity: ≤ 95% (+25℃/77°F);

3. Atmospheric pressure: 80kPa-106kPa (+25℃/77°F);

4. No occasion with serious dripping and splashing in the surrounding;

5. Environment with explosive gases, such as methane and coal dust, but without corrosive gases.