| 摘要 |
PURPOSE: A driving device of an electromotive forklift is provided to previously prevent the misoperation of the electromotive forklift generating when the electromotive A-frame turns off a key switch. CONSTITUTION: If a key switch is turned on by a driver, the power of a battery(11) passes through the key switch and is supplied to a power supplying unit(13). Accordingly, a certain power voltage is supplied to a controller(16). Herein, if the power voltage is supplied from the power supplying unit, a control unit controls the switching reaction of an inverter(15) by supplying a PWM(Pulse Width Modulation) control signal to the inverter after turning on a main contactor(14) by supplying the control voltage of a high state. On the other hand, if the key switch is turned off, the power is still supplied to the power supplying unit since the power via the main contactor is not blocked, and a sensor(20) supplies the result to the control unit since the key switch senses an off state. |
