Siemens SINUMERIK 802D sl - Data Backup; 12.1 Data transfer via RS232 interface

Reference Point Approach (R1)
18.2 Referencing with incremental measuring systems
Turning, Milling, Nibbling
Function Manual, 11/2012, 6FC5397-1CP10-5BA0
317
Note
MD20700 REFP_NC_START_LOCK = 1 prevents a part program from being started (alarm
output) if not all required axes are referenced.
18.2 Referencing with incremental measuring systems
Time sequence
The referencing sequence for incremental measuring systems can be subdivided into three
phases:
1. Phase: Traversing to the reference cam
2. Phase: Synchronization with the zero mark
3. Phase: Traversing to the reference point
W
3KDVH3KDVH 3KDVH
0'5()3B9(/2B326
5HIHUHQFHSRLQWSRVLWLRQLQJYHORFLW\
0'5()3B9(/2B6($5&+B0$5.(5
5HIHUHQFHSRLQWFUHHSYHORFLW\
0'5()3B9(/2B6($5&+B&$0
5HIHUHQFHSRLQWDSSURDFKYHORFLW\
_9HORFLW\_
3RVLWLRQPHDVXULQJV\VWHP]HURPDUN
,65HIHUHQFHGV\QFKURQL]HG
9[
,67UDYHUVLQJNH\SOXVPLQXV
9[DQG
,67UDYHUVHFRPPDQGPLQXV
9[
,67UDYHUVHFRPPDQGSOXV
9[
,6'HFHOHUDWLRQRIUHIHUHQFHSRLQWDSSURDFK
9[
Figure 18-1 Referencing sequence with incremental measuring system (example)