Explanation Of Terms - HEIDENHAIN TNC 620 User Manual

Setup | Optional safety concept (functional safety FS)

Explanation of terms

Safety-related operating modes
Description Brief description
SOM_1
Safe operating mode 1: Automatic opera-
tion, production mode
SOM_2 Safe operating mode 2: Set-up mode
SOM_3 Safe operating mode 3: Manual interven-
tion; only for qualified operators
SOM_4 Safe operating mode 4: Advanced manual
intervention, process monitoring
Safety functions
Description Brief description
SS0, SS1, SS1F, Safe stop: safe stopping of all drives using
SS2 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
HEIDENHAIN | TNC 620 | User's Manual for Setup, Testing and Running NC Programs | 10/2018
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