User manual CC_SHBR12

Cc-Smart Technology Co., Ltd
iLIMIT Soft Home Sensor Configuration:
The driver support Electric Current Home Sensor inside to limit the moving left and
right. It is called iLIMIT SWITCH. The user don’t need add more extended limit switch. The
driver will monitor the current when the Motor is running, if the current of the Motor same as with
the iLimit (iLimit is a current limit setting by Variable Resistors in PCB) that mean the mechanical is
touched. The driver will set a Touched Flag and stop moving that direction. To moving, the driver
need control by reverse direction or the Touched Flag need to be clear by UART Command or short
time pull down ENA PIN to reset the driver.
LEFT & RIGHT User Button:
Reset the Driver: short press LEFT and RIGHT BUTTON same time to reset the driver.
MOTOR forced Turn Right: Short press RIGHT BUTTON
MOTOR forced Turn Left: Short press the LEFT BUTTON
6. Protection & Indication Feature:
Protection:
Under/Over Voltage (vBus):
The motor driver output will be shut down when the power input voltage drops below the
lower limit. This is to make sure the MOSFETs have sufficient voltage to fully turn on and do not
overheat. ERR LED will blink during under voltage shutdown.
Temperature Protection:
The maximum current limiting threshold is determined by the board temperature. The higher
the board temperature, the lower the current limiting threshold. This way, the driver is able to
deliver its full potential depending on the actual condition without damaging the MOSFETs.
Overcurrent Protection with Active Current Limiting
When the motor is trying to draw more current than what the motor driver can supply, the
PWM to the motor will be chopped off and the motor current will be maintained at maximum
current limit. This prevents the motor driver from damage when the motor stalls or an
oversized motor is hooked up. OC LED will turn on when current limiting is in action.
iLIMIT Setting
i
MAX