Siemens SINUMERIK 840Di Function Manual page 1456

Detailed Description
2.4 Referencing with incremental measurement systems
2.4.4 Phase 3: Traversing to the reference point
Phase 3: Graphic representation
Fig. 2-8 Phase 3: Traversing to the reference point
Phase 3: Start
At the end of phase 2 the machine axis travels at reference point creep velocity. Therefore,
as soon as phase 2 is completed successfully without an alarm, phase 3 is started without
interruption.
Initial situation
The encoder zero mark has been detected.
2-16
Reference Point Approach (R1)
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0