Brushless DC Motor Drive Board Hall Control 36V-72V | Электроника

Brushless DC Motor Drive Board Hall Control 36V-72V | Электроника

Performance parameters:

1Working voltage:36V-----72V

2,workElectric current:≤15A

3,drivePower:≤700W

4Speed regulation voltage:0V-5V

5,PWMSpeed regulation frequency:1KHz---10KHz

6Working temperature:-40---85Temperature

7, Working humidity:≤90%RH

8,Size: long63MMwide42.5MMhigh33MM(Control side, Hall side is2.54The socket of the motor terminal is3.96Socket)

Function Description:

Overload protection and abnormal current protection

(2) It has the function of stop-up protection.5SIf the internal repetitive startup fails to turn normally, the output will be automatically protected and stopped.VRPort voltage transferred to0VOr direct power off and re-energize to relieve protection.

It has the function of soft commutation, which has the effect of protecting power tube and motor in many applications, and improves the service life of drive and motor.

(4) It has the function of output of speed pulse signal. According to the different motor, the number of pulses output in each circle is different.

(5) Enabling function

Port description refers to Fig.

Power terminal wiring instructions:

VCCThe port is the positive input voltage of the power supply36V-72V

GNDThe port is the negative pole of the power supply.

MCPort for motorW

MBPort for motorV

MAPort for motorU

SETControl port wiring:

(1) Wiring method of motor speed regulation: through regulationVRThe voltage of the port is adjusted at high and low speed.0VStill,5VFor the most high speed. Examples (through one)20KVariable resistance for voltage dividing and speed regulating, potentiometer's2End connection5VandGND The movable foot of potentiometerVRPort, implement voltage divider to adjust motor speed)

(2) Connection method of motor forward and backward control: by feedingZFThe change of the high and low voltage of the port is controlled by positive and negative inversion.0VOne direction,5VOne direction. Examples are given (which can be controlled by a switch with two gears and three legs.2Termination5VandGNDIntermediate pin connectionZFport)

(3) Connection method of motor enabling control: by feedingELEnabling control of the change of the high and low level of the port.OVStop driving output, motor stop running.5VThe drive is normal and the motor is running normally. Examples are given (which can be controlled by a switch with two gears and three legs.2Termination5VandGNDIntermediate pin connectionZFPort)

(4) Pulse signal output of motor speed can be suspended without measuring motor speed. The foot is the output foot of the speed pulse signal, and the output signal is5VAccording to the pole number of the motor, the number of pulses output in one circle is different.

HALLHall port and motor port wiring instructions:

1First confirm the phase line and Hall line of the motor. Common DC brushless Hall motor is divided into two parts.60Degree sum120Degree two, because our daily use is basically the same.120Degree brushless motor, here it is120For example, the phase sequence of DC brushless motor with D. C. Hall is basically determined by the phase sequence of DC brushless motor with D. C. Hall.8Root line composition, motor phase line3Root, Hall Signal Line5Root, because the motor phase line is relatively thick and relatively easy to recognize, the Hall line is positive for Hall power supply, and the Hall line is positive for Hall power supply, respectively.Ha,Hb,HcHall power supply is negative, Hall power supply is generally red, and Hall power supply is commonly used in negative black, so these two lines are relatively easy to recognize, the foreign motor phase line and the color of Hall line are basically corresponding, for example, phase line.U(MA)green/V(MB)yellow/W(MC)The blue corresponds to the Hall line.Hagreen/Hbyellow/HcBlue, so that we can easily connect the wires, in order to avoid problems when you first use it, it is necessary to do the following debugging to find the phase sequence and then use it properly.

2Wiring and electrical testing

aIn the case of not knowing the corresponding relationship between the phase line and the Hall line, the phase line and the Hall signal line of the motor are first pressed according to the DC brushless motor drive board.(implement)The connection definition is well connected, and the phase sequence relationship between motor phase line and Hall signal line can not be filtered first.

bBefore switching on the electricityVR(Adjust speed)Terminal voltage transferred to0VTo prevent excessive startup current during power-on from driving board(implement)And motor burn out.

cAnd gradually increaseVR(Adjust speed) End voltage, maximum not exceeding full range20%And observe the motor rotation and current changes, normal conditions withVR(Adjust speed) With the increase of terminal voltage, the driving current will gradually rise. At this time, the motor should turn smoothly without noise and jitter. Then change the motor steering test, the forward and reverse current and the rotation are basically the same. Congratulations on the correct phase sequence at present. Your luck is so good that you can run at full speed next. The following steps can be omitted

dIf the motor with abnormal driving current does not turn, trembles obviously when it rotates, or if one direction is normal and the other direction is abnormal, the phase sequence is not adjusted. The corresponding relationship between the phase line and Hall signal line of the motor is shown in the table below.6Method of wiring1Yes, that's right.2and3The motor can rotate in one direction but not in the other.3The motor will not rotate, you can refer to the table below to adjust and repeat the corresponding relationship.cStep by step align it

Normal driving waveform of motor:

Matters needing attention:

Backside6Only the power transistor can not be short-circuited. If used within 60W without heat sink, over 60W must add heat sink, no heat sink drive efficiency is reduced, too high temperature will be permanent damage! The area of the radiator depends on the working environment (the recommended surface area of the radiator is more than 200 square centimeters)! uuuuuuuuuu When installing the radiator, we must pay attention to the insulation problem of six MOS tubes on the back. If it is not insulated, the driving board will be damaged permanently. It is suggested to add thermal conductive silicone grease on both sides of the insulating sheet when adding insulating sheet.

Heat sink installation schematic diagram: