48V Brushless DC Motor Driver BLD-300B 18-50VDC 300W BLDC Motor controller
HALL angle: 120°/240°
Hall drive current
Hall signal voltage
Applicable motor speed
Avoid dust, oil stain and corrosive gas
40-90%RH (no condensation)
Natural cooling or forced cooling
Driver interface and motor connection
1.External potentiometer; 2.Input analog signal; 3.PWM pulse width.
Common port (0V reference level)
High level input the motor will rotates clockwise, low level input or when F/R and COM are connected, the motor will rotate anticlockwise
High level input the motor will slowly stops, low level input or when EN and COM are connected, the motor runs
The motor brake stops when a high level is added or port suspension; the motor runs when the low level is added or EN and BRK are connected
The fault output signal of the motor or drive is 5V under normal circumstances; the level is 0V when a fault occurs.
The output of speed is pulse frequency corresponding to the motor running. The terminal can be connected to upper computer
Four speed regulation modes
Build-in potentiometer RV
Rotate the RV knobs clockwise until a “click” sound, the motor starts to run. Rotate the RV knobs clockwise, the motor will accelerate. Rotate the RV knobs anticlockwise, motor speed will decrease, and the motor will stop until a "click" sound.
Use a suitable potentiometer with a resistance value of 10KΩ, connect middle terminal with SV terminal, and the other two terminals are respectively connected with REF+ terminal and COM terminal.
Input analog signal (0-5V)
When the input voltage is 0.25V, the motor speed is 5% of the maximum speed; When the input voltage is about 4.7V, the motor speed is the maximum value.
PWM pulse Width
Peak current setting
Equipped with a motor protection function, the driver provides options to set desired current number in the P-sv knob. Please note that the rate of change is ±10% .
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