PROBLEM TO BE SOLVED: To provide a self-travelling work machine and a control system of the self-travelling work machine capable of performing a remote operation, reducing the number of components involved in power transmission control, and being put under an operator's control even when a radio signal is blocked.SOLUTION: A self-travelling work machine and a control system of the self-travelling work machine include a travelling unit D, a work unit K, a lifting and lowering unit F for freely lifting and lowering the work unit K, an operation unit B for remotely controlling the travelling unit D, the work unit K, and the lifting and lowering unit F, and a converter control device E for converting a signal sent from the operation unit B and outputting a signal for controlling rotations of a travelling motor 15, a work motor 51, and a lifting and lowering motor 61. When the signal from the operation unit B is blocked for a set time, the converter control device E determines that power supply of the operation unit B as a transmitter is in a cutoff state, and outputs a stop signal to the travelling motor 15, the work motor 51, and the lifting and lowering motor 61 to bring them into a stop state.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2020,JPO&INPIT【課題】 遠隔操作を行うと共に伝動制御に係る部品点数を減らし、さらに無線信号の遮断時の際でも作業者の制御下に置くことができる自走式作業機及び自走式作業機の制御システムを提供する【解決手段】 走行部Ｄと、作業部Ｋと、前記作業部Ｋを昇降自在にする昇降部Ｆと、前記走行部Ｄ及び前記作業部Ｋ及び前記昇降部Ｆを遠隔操作するための操作部Ｂと、該操作部Ｂから送られた信号を変換し、走行モータ１５及び作業モータ５１及び昇降モータ６１の回転を制御するため信号を出力する変換部制御装置Ｅと、を備え、前記変換部制御装置Ｅは、操作部Ｂからの信号が設定された時間途絶えると、送信機である操作部Ｂの電源が切断状態と判断して、前記走行モータ１５及び前記作業モータ５１及び前記昇降モータ６１に対して停止信号を出力し停止状態にさせる、ことを特徴とする自走式作業機及び自走式作業機の制御システムである。【選択図】図１
