Note
SLS without selection
As an alternative to controlling via terminals and/or PROFIsafe, there is also the option to
parameterize the SLS function without selection. In this case, the SLS function is permanently
active after POWER ON. You can find details about this in Section "Safely-Limited Speed
without selection (Page 144)".
Selecting SLS when the motor is switched on
As soon as the converter detects the selection of SLS via a failsafe input or via PROFIsafe safe
communication, the following happens:
● To avoid a limit value being violated, the setpoint limit can be transferred to the F-PLC This
can then limit the velocity setpoint.
● If the speed setpoint limitation is interconnected to the ramp-function generator, the
converter limits the speed to a value below the SLS monitoring.
● For SLS without encoder, you can select whether the converter monitors motor braking
using the function SBR (Safe Brake Ramp) or SAM (Safe Acceleration Monitor) – or not. For
SLS with encoder, the SBR function cannot be selected.
Safety functions integrated in the drive
4.10 SLS
Safety Integrated (with SINAMICS S120)
134
Commissioning Manual, 02/2020, A5E46305916B AB
