1 Safety1.3.4. DANGER - Robot without axes' holding brakes are potentially lethal!413HAC027309-001 Revision: D© Copyright 2006-2010 ABB. All rights reserved.1.3.4. DANGER - Robot without axes' holding brakes are potentially lethal!DescriptionSince the robot arm system is quite heavy, especially on larger robot models, it is dangerousif the holding brakes are disconnected, faulty, worn or in any way rendered non-operational.For instance, a collapsing IRB 7600 arm system may kill or seriously injure a person standingbeneath it.EliminationAction Info/illustration1. If you suspect that the holding brakes arenon-operational, secure the robot armsystem by some other means beforeworking on it.Weight specifications etc. may be found inthe Product manual of each robot model.2. If you intentionally render the holdingbrakes non-operational by connecting anexternal voltage supply, the utmost caremust be taken!DANGER!NEVER stand inside the robot workingarea when disabling the holding brakesunless the arm system is supported bysome other means!DANGER!Under no circumstance stand beneath anyof the robot’s axes!How to correctly connect an externalvoltage supply is detailed in the Productmanual of each robot model.