| 摘要 |
PROBLEM TO BE SOLVED: To provide a motor unit having the function of an integrated control board so as to simplify the wiring of feeder cables and simplify the constitution of a whole system and reduce the size and cost of the whole system. SOLUTION: A contactless switch module 13 using a semiconductor switch is provided in a terminal box case 12 fixed to a motor 11. The switch in the module 13 is connected to a motor 11, a power source, and a control means and supplies electric power to the motor 11 in accordance with a control signal from the control means. In addition, a thermostat 16a which detects the abnormal heating of the winding 15 of the motor 11 is attached to the winding 15. In addition, a thermostat 16b which detects the abnormal heating of the module 13 is provided and connected in series with the thermostat 16a, as necessary. The thermostats 16a and 16b inform the control means of the abnormal heating of the winding 15 and module 13 to stop the output of the control signal. |
