Permanent magnet motor with variable frequency control system, output torque to drive load, realize soft-start of the belt conveyor,which does not cause the belt damage; realize multi-motor torque balance of belt conveyor; realize low speed and high torque output characteristics. No gear box, simplify the transmission chain, reduces maintenance cost. The configuration of the control system is famous brand controller (Siemens, Beckhoff etc.), which reserve switch quantity, analog, optical control interface, support frofilnet, MODBUS, Ethernet protocol. The special control software is built-in to realize "S" curve starting and parking of belt conveyor; The system can solve the multi-drive the balance of power by master-slave multi-machine linkage function. 1.2 System characteristics 1.2.1high reliability •Gear less, transmission chain is shortened, the system run more smoothly, more reliable; •Gear less, Precision loss caused by mechanical wear has been effectively controlled, the system has long service life; •Variable frequency starting, no impact, effectively solve the harm of dynamic tension wave for belt conveyor; •Permanent magnetic synchronous motor has good controllability, which can
• solve the problem of multi-drive power balance problem for a long distance, large capacity belt conveyor;
• Frequency converter with reactor and filter, which does not pollute the power grid and interfere with other equipment;
• less number of system components makes the installation more convenient.
1.2.1 Low Maintenance
• Gear less, reduce the volume,cost and difficulty of system maintenance;
• System can operation continuously, has longer Maintenance cycle, shorter downtime and Higher efficiency.
PMM system is specially designed according to belt conveyor running condition and mainly for the belt conveyor driving system at non explosion-proof areas like the port, power plant and mines etc. It can replace directly the traditional asynchronous motor, reducer and hydraulic coupler which directly drive the equipment with high transmission efficiency, good energy saving and reliable and safe running.
The system adopts natural cooling way with compact volume, small noise, permanent drive way, easy to install, less malfunction and easy operation and control. The system has the voltage degrees of 380V, 660V, 1140V, 3300V, 6KV and 10KV etc. Rotation speed range can be designed and produced as per the customer requirement with range of 0-60, 75 and 90r/min.
Speed adjustment range (0-60r/min) and technical parameter of CPMC315 engine seat