Motor driving system, motor driving control device, and non-transitory computer readable medium for motor driving control device

A motor driving system comprising:

• a first motor;
• a first motor driving control device for driving the first motor;
• a second motor;
• a second motor driving control device for driving the second motor;
• a controller for performing communication with the first motor driving control device and the second motor driving control device;
• a first communication line for connecting a common terminal of the controller and the first motor driving control device;
• a second communication line for connecting the common terminal and the second motor driving control device;
• and
• a switch unit capable of switching each of the first communication line and the second communication line between an enable state in which communication is possible between the controller and the motor driving control device connected to each other by the communication line and an disable state in which communication is impossible between the controller and the motor driving control device under control of the controller, wherein when communicating with the first motor driving control device, the controller controls the switch unit so as to set the first communication line to the enable state and set the second communication line to the disable state, and when communicating with the second motor driving control device, the controller controls the switch unit so as to set the second communication line to the enable state and set the first communication line to the disable state.