Distancecoded Reference Marks - Siemens SINUMERIK 840D sl Commissioning Manual

NCK start-up
10.5 Parameterize axis data

10.5.12.2 Distancecoded reference marks

Distancecoded reference marks
When clearance-coded reference marks are used, referencing is divided into 2 phases:
1. Synchronize by overriding 2 reference marks
2. Traverse to target point
Figure 10-20 Signal chart: Distance-coded reference marks (principle)
Phase-independent data
The following machine data and interface signals are independent with respect to the
individual phases of reference point approach:
● MD11300 JOG_INC_MODE_LEVELTRIGGRD (INC/REF in jog mode)
● MD34000 REFP_CAM_IS_ACTIVE (axis with reference cam)
● MD34110 REFP_CYCLE_NR (Axis sequence for channel-specific reference point
● MD30240 ENC_TYPE (encoder type)
● MD34200 ENC_REFP_MODE (Referencing mode)
● MD34310 ENC_MARKER_INC (interval between two reference marks)
● MD34320 ENC_INVERS (inverse measuring system)
● IS: DB21, ... DBX1.0 ("Activate referencing")
● IS: DB21, ... DBX33.0 ("Referencing active")
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approach)
Commissioning Manual, 07/2007, 6FC5397-2AP10-3BA0
IBN CNC: NCK, PLC, drive