Siemens SINUMERIK 840D sl Operating Manual

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4. Press the <-> or <+> key.The selected axis moves to the reference point.If you have pressed the wrong direction key, the action is not acceptedand the axes do not move.A symbol is shown next to the axis if it has been referenced.The axis is referenced as soon as the reference point is reached. The actual value display isset to the reference point value.From now on, path limits, such as software limit switches, are active.End the function via the machine control panel by selecting operating mode "AUTO" or "JOG".4.2.2 User agreementIf you are using Safety Integrated (SI) on your machine, you will need to confirm that the currentdisplayed position of an axis corresponds to its actual position on the machine when youreference an axis. Your confirmation is the requirement for the availability of other SafetyIntegrated functions.You can only give your user agreement for an axis after it has approached the reference point.The displayed axis position always refers to the machine coordinate system (Machine).OptionUser agreement with Safety Integrated is only possible with a software option.Procedure1. Select the "Machine" operating area.2. Press the key.;=3. Select the axis to be traversed.4. Press the <-> or <+> key.The selected axis moves to the reference point and stops. The coordi‐nate of the reference point is displayed.The axis is marked with .Setting up the machine4.2 Approaching a reference pointTurningOperating Manual, 05/2017, A5E40868721 69