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Brushless motor  driver BLDC-5015A

Overview  :

The brushless motor driver BLDC-5015 is suitable for three phase low voltage brushless DC  motor which current is below 15A ,voltage is within 50V , applied widely in  sewing machine . medical equipment .food machine .electric tools .garden  machine etc .

Characteristic :

1.SPWM ,current .speed double  closed loop , low speed high torque ,work stably .
2.High speed torque ,Max speed  98000rpm/min .
3.Max speed ratio is 1: 75 .
4.Flexible magnetic pole location  setting ,60°/300°/120°/240°can be selected , suitable for different size motor  .
5.Providing two way of speed adjustment  .
6.Start and stop .quick brake  ,photoelectric isolator
7.Output test speed ,alarm signal  output

Parameter setting :

Output    power supply	24~50V DC    power supply ,capacity :selected by power of    motor
Output    current	Rated current 15A ,MAX    instantaneous current is 45A
Drive way	SPWM bipolar output    drive
Resistance	Under the condition of    normal temperature and normal voltage >500MO?
Insulation    class	Under the condition of    normal temperature and voltage 500V/minute
Weight	About 300g

Environment requirements :

Cooling way	Natural cooling
Using environment	Avoid dust, oil mist and corrosive gases.
Using temperature	0ºC~+50ºC?
Environmental humidity	<80%RH,No    condensation, no frost
Vibration	Couldn’t be over 5.7m/s2?
Keeping	-20ºC~+125ºC,avoid dust

 Function  and usage :

Power interface DC+ .DC :

DC 24 ~ 50V , linear power supply are always used  for electric power supply ,ripple voltage shouldn’t be over 50VDC ,to avoid  damaging the driver , the rated current of linear current shoule be over 60% of  the output current of motor driver .when use power supply for electric ,it  should mark thee rated output current .it is better to use the power supply  that is suitable for the stepper motors.
 Note : when connect wires , we should pay  attention to the polar of the power supply , DC+ is cathode , DC-  is anode   , wrong connection will damage the driver .

Control signal definitive way :

1.Set by the potentiometer on the  driver board , this way is suitable for fixed speed machine . When use the  function , it need to adjust the the second of DIP into ON . User can be  adjusted the stepper motor into needed speed according your requirements .
2.Set by interface of motor driver  , this setting way is suitable for the machine with changed speed .when select  the function , need to adjust the second DIP SW into OFF AVI accept the 0~5V  simulation voltage instruction or PWM signal from supervisory controller .

SW2	Source of instruction	Adjust way	Instruction Morphology	Current consume
ON	Potentionmeter RV	CW need to increase speed ,CCW need to    decrease the speed	-	-
OFF	AVI interface	0~5Vsimulation voltage:speed 60~rated speed	0~5V simulation voltage	=5mA
OFF	AVI interface	PWM signal	1KHz duty ratio square wave	-

Important note : the two control way , just can  choose one .when the potentionmeter is not used , pls make the CCW into min  value .

Motor start/stop signal (ENBL)

User can use the ENBL terminal to control the  start or stop of the motor , this signal is photoelectric isolation. common  anode is the inner 15V power supply of motor driver .The valid meaning of ENBL  signal is inner photoelectric of driver which is turn on or turn off .when  photoelectric turn on ,motor start work ; when photoelectric is off , motor  stop work , the detailed circuit is as below :

CW /CCW signal (F/R)
 User can use motor driver terminal to control  CW/CCW of motor , the signal is photoelectric isolation .common anode is the  inner 15V power supply of motor driver .The valid meaning of F/R signal is  inner photoelectric of driver which is turn on or turn off .when photoelectric  turn on ,motor start work ; when photoelectric is off , motor stop work .
 Note : brushless DC motor is different from the AC  Asynchronous motor or DC motor , it change the electric direction by hall  signal of inner motor , so it couldn’t change the rotation  direction by changing the winding of motor .

Motor brake stop signal  (BRK)
 User can use the motor driver terminal BRK to  control quick motor brake , this stop way is different with ENBL signal ,  having nothing to do with the inertia loading . The time of brake is usually  50ms , when loading inertia is over three times than rotor  , quick braking may result in the alarm of  motor driver . So when user select the motor and driver , you should calculate  the loading  inertia ,ensure that the  loading inertia is within three times of rotor inertia .
 However , when the loading inertia can be  decreased , and having no matching motor , it will need to control the time of  acceleration and deceleration , this tine need to avoid using the stop signal  BRK .
 The receiving way is photoelectric isolation ,  when photoelectric is on , motor brake . When photoelectric is off , motor  restart work .

Set the location of hall polar
 By changing the first of the DIP SW to set the  polar location ,so that the motor can match with the driver as below :

SW1	Motor polar location
ON	120°or 240°hall signal,120°and  240°the    difference of hall signal motor is contrary of rotation .
OFF	60°or 300°hall signal,60° and 300°the difference of hall signal motor is    contrary of rotation .

Output signal of motor speed testing :
Motor driver provide the pulse signal of motor  speed testing , this signal is direct ratio with motor rotation speed ,the  output way of pulse speed is photoelectric isolation OC output . You can change  its level according to your requirements . In order to improve the accuracy of  speed testing , the inner of driver need to be made by 6 frequency doubling .
Motor rotation speed = 60 ×  speed signal frequency /pulse/rev ; pulse/rev = motor number of pole pairs × 6
 Such as : user choose 2 number  of pole pairs , then pulses = 2×6= 12   ,when the output speed is 600HZ , motor rotation speed = 60×600/12=3000 rev/min .the circuit of test speed is as below :
 
 the  pulses per rev of normally used brushless motor :

Number of pole pairs	Pulse/rev	Number of pole pairs	Pulse/rev
2	2×6=12	5	5×6=30
3	3×6=18	6	6×6=36
4	4×6=24	8	8×6=48

Output  alarm signal of motor driver (ALM )

When  motor driver have the malfunction of over-current . Over-voltage . Short  circuit between phases , it will be in the state of protect ,stop the rotation  of stepper motor , and output alarm signal , red light is on , it will protect  the motor driver and motor in much degree . When alarm happens , pls turn off  the power supply ,and check when the wire is correct and voltage of power  supply is in the range . When you select large inertia motor , the voltage of  power supply shouldn’t be too high to avoid alarm because over-voltage .the  output circuit drawing is as below :

Terminal mark	Terminal manual
DC+;DC-	DC power supply ,typical value:DC36V
U;V;W	Motor power output ,phase of motor should    be corresponding ,wrong connection will result in lock rotor or    out of control .
REF+;REF-;HU;HV;HW	Input hall signal,REF+;REF-is    power supply for hall,wrong connection will    result in lock rotor or out of control .
AVI;ENBL;F/R;BRK;GND	Input signal , GND is optocoupler common anode power    supply .
SPEED;ALM	output signal , open collector (OC)

Drawing :

Installation  size :