1.7 Safe troubleshooting1.7.1 Robot without axes' holding brakes are potentially lethalDescriptionSince the robot arm system is quite heavy, especially on larger robot models, it isdangerous if the holding brakes are disconnected, faulty, worn or in any wayrendered non-operational.For example, a collapsing manipulator may kill or seriously injure a person standingbeneath it.Safe handlingInfo/illustrationActionWeight specifications etc. may be found inthe Product manual of each robot model.If you suspect that the holding brakes arenon-operational, secure the robot armsystem by some other means beforeworking on it.1How to correctly connect an externalvoltage supply is detailed in the Productmanual of each robot model.If you intentionally render the holdingbrakes non-operational by connecting anexternal voltage supply, the utmost caremust be taken!DANGERNEVER stand inside the robot working areawhen disabling the holding brakes unlessthe arm system is supported by some othermeans.2DANGERUnder no circumstance stand under themanipulator arm.Operating manual - Troubleshooting IRC5 273HAC020738-001 Revision: AA© Copyright 2005-2018 ABB. All rights reserved.1 Safety1.7.1 Robot without axes' holding brakes are potentially lethal
