Problem to be solved: to provide an electric lift up machine, a control device and a control method, which can effectively prevent winding trouble such as tying, breaking, or the like at the time of winding accompanied with improper tension of the pulling member without causing greater size and weight increase.The electric lift up device 1 of the present invention controls the electric motor 2 when the tension sensor 20 for detecting the tension of the traction member and the second threshold value greater than the first threshold value and \/ or exceeding the second threshold value greater than the first threshold value are used to control the motor A control section 18 for restricting the take-up of the traction member is provided.Diagram【課題】大型化及び重量増を招くことなく牽引部材の不適正な張力に伴う巻き取り時の絡みや破断等といった巻き取りトラブルを効果的に防止できる電動巻き上げ機及びその制御装置並びに制御方法を提供する。【解決手段】本発明の電動巻き上げ機1は、牽引部材の張力を検出するための張力センサ20と、張力センサ20により検出される張力が第1の閾値を下回るとき及び/又は第1の閾値よりも大きい第2の閾値を上回るときに電動モータ2を制御して回転体4による牽引部材の巻き取りを制限する制御部18とを備える。【選択図】 図2
