| 摘要 |
PURPOSE: An LED terminal block for checking a control circuit is provided to reduce checking time since the soundness of the control circuit is rapidly checked. CONSTITUTION: An LED terminal block for checking a control circuit comprises an LED(13), a resistor(14), and a switch(16). The LED connects to a DC+ terminal to check the soundness of the control circuit. The resistor serially interlinks to the LED and applies the voltage and the current for the rated voltage of a light emitting diode. A changeover switch is adjacent to the DC-terminal and selects the control circuit test mode and normal state drive mode for checking the soundness of the control circuit.
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