ABB OmniCore E10 Product Manual

6.2.4 Problem releasing the robot brakesDescriptionWhen starting robot operation or jogging the robot, the internal robot brakes mustrelease in order to allow movement.Required test equipmentEquipment needed for troubleshooting:NoteEquipmentMultimeterInsulating gloves3HAC076810-008Circuit diagram - OmniCore E10PreparationsActionMake sure that the controller is switched on.1Wait 30 s - 1 min to enable start-up sequence.Check the FlexPendant for errors and warnings.2DANGERTroubleshooting on the controller while powered on must be performed by personneltrained by ABB or by ABB field engineers.Recommended working procedureIf the brakes do not release, no robot movement is possible and a number of errorlog messages can occur. Use this procedure to troubleshoot what might cause theproblem.Look at the following block diagram to understand how power is connected fromincoming and forward.Block diagramDrive UnitT4 Motor connectorX1ManipulatorPower UnitA124V_BRAKE_PWRBrake signal Floor cableX11 X13 X15xx2100001557Continues on next pageProduct manual - OmniCore E10 1733HAC079399-001 Revision: C© Copyright 2019-2022 ABB. All rights reserved.6 Troubleshooting6.2.4 Problem releasing the robot brakes