To Set The Limit Voltage (Id,Slv,***,###\R\N); To Get The Fault Information (Id,Ger\R\N) - DFRobot Veyron Manual

If when the system voltage exceeds the limit voltage range, the motor will stop and then indicates the
under-voltage or over-voltage fault.
* Send: 1,GSV\r\n
* Returns: (the current *10 system voltage at a resolution of 0.1V)

3.41 To set the limit voltage (ID,SLV,***,###\r\n)

The recommended voltage DC drive range 12~36V, limit setting value should not be less than 6V,
upper limit value is not greater than 40V, otherwise the drive will not respond.
For example, to set respectively the drive lower and upper voltage threshold to 10V and 24V
* Send: 1,SLV,100,240\r\n
* Returns: none

3.42 To get the fault information (ID,GER\r\n)

Fault messages should be converted to a hexadecimal number, querying about origin fault in the
following table:
Control Signal Lost: when the control mode is a break mode, the host controller is required to send
control commands within a set time, if there is no control signal for a set time, drive will consider
control signals as lost.
Bit Error Sources
0 Reserved
1 Lower Voltage
2 Over Voltage
3 Over Temperature
4 M1 Over Current
5 M2 Over Current
6 Control Signal Lost
7 Reserved
8 Reserved
9 Reserved
10 Reserved
11 Reserved
12 Reserved
13 Reserved
14 Reserved
15 Reserved
24