R1: Reference point approach
15.5 Referencing with incremental measurement systems
Basic Functions
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
1221
The "Position restored" state can only be exited by referencing the axis. As a consequence, IS
DB31,....DBX71.4/5 ("restored 1/2") is deleted and IS DB31,....DBX60.4/5 ("referenced/synchronized 1/2") is
set.
Retracting the tool in JOG mode
Once the tool has been retracted in JOG mode, axes whose positions have been restored are referenced. For
further details, see also machine data:
• MD20700 $MC_REFP_NC_START_LOCK (NC start lock without a home position).
• MD34110 $MA_REFP_CYCLE_NR (Axis sequence for channel-specific referencing)
The PLC prompts the display of this state with the output of a corresponding PLC message by evaluating the
above NC/PLC interface signals.
Note
In the case of spindles, the states "Position restored" and "Referenced/Synchronized" can
also be deleted by exceeding the encoder limit frequency.
Note
If machine data MD20700 $MC_REFP_NC_START_LOCK is set to a value of "2", then an
NC start is also possible with "restored" axis positions (in the MDI mode or when
overstoring).
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