| 摘要 |
PURPOSE:To obtain a miniaturized device capable of displaying a current value and electric energy at low cost by mounting a main-circuit voltage detecting section and a digital display to a motor control relay and easily changing over the contents of display. CONSTITUTION:Signals for starting, stoppage, display, the protection of overcurrent, the protection of leakage, instantaneous service interruption compensation, etc. are all processed and outputted in a motor control relay 31. A motor controller can be set to the function, etc. of circuits and various control systems and control functions required for controlling the motor by the working of a signal processing section 40 without varying an external circuit at all by changing the setting of a control-mode changeover switch 32, and the display contents of a digital display 55 can easily be altered by the operation of a digital-display changeover control switch 54. |
