Choose brushless dc motor product, first of all, should choose the right voltage according to the customer need to choose the rated voltage to select the drive voltage parameters, pay attention to the use of voltage in the process of no-load and load does not exceed the scope stipulated in the drive. Second, we will choose the peak current drive, select the peak current method is to have the input current rating of the motor Ir (A), the peak current Ip (A)>= xIr, otherwise the driver output current in use process without certain engineering allowance, if known to the rated output power of the motor (Or the highest output power)Pr(W)And the driving voltage Vr (V), the peak current Ip (A)≧xPr/Vr。 Third, we can also according to the parameters set motor, but we need to set it according to different motor suitable parameters, the use of the temperature, of course, we also need to be taken into account, the higher the temperature the more wide price. And brushless dc motor drive brake the motor side short circuit braking, motor operation is the brake force, don't work, there is no brake force, the greater the speed, the higher the brake force. Due to the braking current without using current sensing resistor, braking current can't control. So when braking speed cannot exceed safe braking speed, otherwise may burn out power tube, this feature, please use caution. Fourth, there is also a key is the power of the insulation requirement, to guarantee the normal work of the drive, the hall ground line of the motor and motor winding line, the hall ground wire winding wires and insulation resistance between casing is greater than the megohm VDC, can withstand the VAC/Hz/mA/SEC pressure not breakdown.
