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Safety functions (only for controls with integrated safety technology)
Safety functions (only for controls with integrated safety technology)
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Operating manual [27779165/EN] - EMS modular controls
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10
Safety functions (only for controls with integrated safety technology)
10.1
Overview
Basically, two safety functions are possible:
•
STO
: Safe torque shutdown (
S
afe
T
orque
O
ff)
•
SLS
: Safety limited speed (
S
afely
L
imited
S
peed)
The STO function is implemented differently depending on the communication type:
Communication type rail bus CAN
When using the CAN rail bus communication type, the internal safety relay VSR is used
to safely switch off the torque.
Communication type SMGM
When using the communication type SMGM, the safe torque shutdown is implemented
via PROFIsafe.
The SLS function is only possible in connection with the STO function. The safely limited
speed is implemented by the frequency converter used.