If excessive sparking brush dc motor controller, then should find out the reason, then for reasons to solve, the following is a detailed introduction. A, the reason of excessive sparking brush: 1, the rotor dynamic balancing correction not good. 2, commutator surface is not smooth, or mica sheet bulging. 3, dc motor controller overload or supply voltage is too high. 4, brush dc motor controller is not neutral line. 6, the armature winding magnetic pole winding or commutating pole winding faults. 5, brush pressure or poor contact with the commutator brush wear or brush brand is wrong. Second, the cleaning method: 1, grinding, under carved mica slot commutator surface. 2, adjust the motor brush pole position controller. 3, to reduce the load and power supply voltage dc motor controller. 4, to correct the rotor dynamic balance. 5, adjust the brush pressure, abrasive brush and commutator interface, trawling for brush. If you have excessive sparking brush dc motor controller, can be in accordance with the above method to find the reason and solve, really not contact the manufacturer directly, to after-sales service. Small make up: Sara
