Arrangement for safeguarding the functioning of the control units in a group of lifts

摘要

The invention relates to method of safeguarding the control of a group of lifts comprising a plurality of lift cables in the event of certain control units 1 being affected by malfunction. According to the invention the control unit 1 is provided with a parallel backup connecting device 11, which is connected to the control connecting device 8 of the adjacent control unit 1. Similarly the power source 2 of each control unit 1 is connected to the power source 2 in the adjacent control unit. <IMAGE>