HEIDENHAIN TNC 620 (81760x-02) ISO programming - Manual (Page 448)

Manual operation and setup
14.4 Optional safety concept (functional safety FS)
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TNC 620 | User's ManualDIN/ISO Programming | 2/2015
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