Siemens SINUMERIK 840D Function Manual

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StartReferencing the machine axis can be manually started, or from the part program:● Manual: Operation mode JOG and MDI, machine function REF● Part program: Command G7410.2 Axisspecific referencingFor axis-specific referencing using the reference point approach, the operation must beindividually started for each machine axis to be referenced.Selecting mode and machine functionBefore starting reference point approach of the machine axes, you must first place the relevantmode group in JOG or MDI mode:DB11, ... DBX0.2 (active JOG mode)DB11, ... DBX0.1 (active MDI mode)Then machine function REF (reference point approach) must be selected:DB11, ... DBX1.2 (REF machine function)Start of reference point approachIn axis-specific reference point approach, each machine axis must be started individually.Reference point approach is started with the axis-specific traversing keys:DB31, ... DBX4.6 (Traversing key minus)DB31, ... DBX4.7 (Traversing key minus)Direction enableTo avoid operator errors, the direction release must be parameterized. The direction enablespecifies which traversing key starts the reference point approach:MD34010 $MA_REFP_CAM_DIR_IS_MINUS = Meaning0 Reference point approach in plus direction1 Reference point approach in minus directionJog modeThe following machine data element can be used to specify whether reference point approachis completed when the direction key is pressed once or whether the operator is required to keepthe direction key pressed (jogging) for safety reasons:MD11300 $MN_JOG_INC_MODE_LEVELTRIGGRD (INC and REF in jog mode)R1: Referencing10.2 Axisspecific referencingAxes and spindles292 Function Manual, 06/2019, A5E47437747B AA