| 摘要 |
PURPOSE:To make it possible to confirm transmission of operational command to a microcomputor without dismantling power supply for motor or the like. CONSTITUTION:A circuit for transmitting an operational command from a sequencer 41 to a microcomputor 25 and checking transmission thereof is provided with an LED 44 for checking the operational command. Upon turn ON of a forward rotation command SW from the sequencer 41, a photocoupler 43 is conducted to apply +5V voltage on the LED 44 which is thereby illuminated. At that time, +5V voltage is also applied on a microcomputor 25, which outputs a PWM wave signal according to the operational command. Illumination of the LED 44 makes it possible to confirm transmission of operational command to the microcomputor without dismantling the power supply. |
