Make check general to consider the following aspects: 1)Motor torque is big enough, can drive the load, so we usually recommend a user selection to choose moment 50% larger than the actual needs100% of the motor, step motor cannot load operation, even a moment, can create out of step, serious when a halt or irregular back again and again. 2)Host controller to the input pulse current is big enough (General > 10 ma), so that the optical coupling and stable conduction, the frequency of the input is too high, lead to receive less than, if the host controller output circuit is a CMOS circuit, is also want to choose the drive CMOS input type, 3)Start frequency is too high, is set up in the launcher to accelerate the process, the best from the start of the motor regulation within the frequency began to accelerate to the set frequency, even if the acceleration time is very short, otherwise may be unstable, even in the idle state 4)When the motor is fixed, sometimes this situation, belong to normal. Because, in fact, this caused the motor's strong resonance caused by the state of out of step. The motor must be fixed well 5)For 5 phase motor phase wrong, the motor can't work
