Yung economic electromechanical more than just specializing in covering machine servo repair business, but also long-term to help provide technical Q & production problems encountered by a lot of equipment in the shop floor, often by telephone engineer Yung economic solutions will be able to exclude. 1, covering machine servo maintenance of energy-saving principle: motor hard start to cause a severe impact on the grid, but also the requirements of grid capacity is too high, baffle and valve damage greatly startup current and shocked extremely detrimental to the life of the equipment, piping. Frequency energy saving device, the soft start function will allow the use of server start-up current from scratch, the maximum value does not exceed the rated current, reducing the impact on power supply capacity requirements, extended equipment and valves life saving equipment maintenance expense. 2, the high degree of protection covering machine servo repair characteristics: power range: three-phase 380 ~~ 460VAC 1.5KW ~ 550KW; high starting torque: zero speed can output 150% rated torque; high overload capacity of 150% overload one minute more than 2 times the rated current of the uniform flow capacity; precise speed control: the speed control accuracy is up to 0.2%, the output frequency accuracy of up to 0.01%; precise torque control: torque control accuracy of 5%; higher harmonic restrain: of 18.5KW and the more built-in DC reactor; maximum output frequency: 400Hz. Has been coated wire machine servo repairs are individual customers are more concerned about the problem, Yung economic electromechanical committed to the maintenance of industrial automation products for many years, always address the urgent needs of customers.