To normally start/stop a rotary machine even if an abnormal operation occurs in a CPU or the supply of power to the CPU is cut off.

A running controller including the starting and stopping of a rotary machine is provided with a CPU 11, various control circuits 14, 15 and 16 connected to the CPU 11 and a starting/stopping circuit 32 for controlling the starting/stopping of the rotary machine, and the starting/stopping circuit 32 is independently provided without going through the CPU 11. Further, the power source system of the running controller is divided into two systems, i.e., a first power source system for supplying DC power source to various control circuits connected to the CPU 11 and the starting/stopping circuit 32, and a second power source system for supplying DC power source only to the starting/stopping circuit 32.