Siemens SINUMERIK 840D sl Function Manual page 1669

DB31, ...
DBB19 Spindle override
Signal state 1 or In gray coding, the following codes are assigned to the individual switch settings:
edge change
0 → 1
The factors listed in the table for spindle override are stored in the machine data:
MD12070 $MN_OVR_FACTOR_SPIND_SPEED [n]
The table contains the default settings.
The number of possible switch settings for standard machine panels is described in the Configuration
Manual for SINUMERIK 840D.
Corresponding to ... DB31, ... DBX1.7 (override active)
MD12070 $MN_OVR_FACTOR_SPIND_SPEED [n] (evaluation of the spindle override switch)
MD12100 $MN_FACTOR_LIMIT_BIN (limit for binary-coded override switch)
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Z1: NC/PLC interface signals
19.12 Feeds (V1)
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