R110PLUS USER MANUAL
When the internal optocoupler is on, the driver will cut off the current of each phase of the motor to make
the motor free, and the step pulse will not be responded.
When the motor is in an error state, it is automatically turned off. The level logic of the enable signal can
be set to the opposite.
At the same time, this port can be reused as other functions like IN1 and IN2.
3.2.3 ALM (OUT1) port:
The driver includes an optically isolated output port ALM. By default, the ALM port is an alarm output
port. When the driver is in an error state and normal operation, the ALM port outputs different
optocoupler levels.
It can also be reused for other functions, as shown below:
3.3 USB port
The USB is a micro usb connector and requires a USB bridge.
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