BLDC50/100
User Manual
4 Operation
4.1 Basic operation
Speed setting
• The setting range is 150 to 4500 rpm.
Setting by internal potentiometer.
Use a precision screwdriver to turn the internal potentiometer.
Turn the potentiometer clockwise to increase the speed.
Factory setting: 0 r/min
• Setting by the external potentiometer
Connect the external potentiometer to the I/O signal connector (CN4) of the driver.
The recommended resistor is 5kΩ.
Connect the shield wire of the signal wire to the AGND input terminal.
Make sure the shield wire does not contact other terminals.
When the M0,M1,M2 input is turned OFF and the SPST terminal is turned ON, the external poten-
tiometer is enabled. Turn the potentiometer clockwise to increase the speed.
• Setting with external IO input voltage
Setting SW1 OFF, then 5 -24 VDC for the external IO input DC voltage can be used.
Factory setting: SW1 OFF
N
ote Change the setting of the external voltage selector switch SW1 before turning on the
power.
Running/stopping the motor
Run/stop the motor by inputting operation control signals.
•
Operation
When the CW/CCW input is turned OFF, the motor turns in the clockwise direction according to
the acc/dec potentiometer setting. When the CW/CCW input is turned ON, the motor turns in the
counterclockwise direction according to the acc/dec potentiometer setting.
•
Stop
When the STMD input is turned OFF and the STP input is turned ON, the motor stops according
to the acc/dec potentiometer setting. It maybe produce Back-EMF and make the drive alarm “Sup-
ply voltage high“.
When the STMD input is turned ON and the STP input is turned ON, the motor stops by short
all the three phase of the motor. It will stop the motor very fast without Back-EMF. This stopping
method is recommended.
Rotating direction of the motor output shaft
The rotating direction of the motor output shaft represents the direction when viewed from the
motor output shaft side.
Speed Low
Speed
Speed High
When CW/CCW
is ON
When CW/CCW
is OFF
Lin Engineering
BLDC 50/100 Driver Manual
Page 22
Version 1.0
01/29/2020
