HEIDENHAIN TNC 640 (34059x-02) ISO programming - Manual (Page 455)

Functional safety FS (option) 15.4
15
TNC 640 | User's Manual for DIN/ISO Programming | 5/2013
455
Explanation of terms
Safety-related operating modes
Description Brief description
SOM_1 Safe operating mode 1: automatic
operation, production mode
SOM_2 Safe operating mode 2: set-up mode
SOM_3 Safe operating mode 3: manual
intervention; only for qualified operators
SOM_4 Safe operating mode 4: Advanced manual
intervention, process monitoring
Safety functions
Description Brief description
SS0, SS1, SS1F,
SS2
Safe stop: safe stopping of all drives using
different methods
STO Safe torque off: energy supply to the
motor is interrupted. Provides protection
against unexpected start of the drives
SOS Safe operating stop. Provides protection
against unexpected start of the drives
SLS Safely-limited speed. Prevents the drives
from exceeding the specified speed limits
when the protective door is opened