Safely Limited Speed Without Encoder - Siemens Sinamics S110 Function Manual

Overview of important parameters (see SINAMICS S110 List Manual)
● p9301.0 SI Motion enable safety functions (CPU 2)
● p9501.0 SI Motion enable safety functions (CPU 1)
● p9331[0...3] SI Motion SLS limits (CPU 2)
● p9531[0...3] SI Motion SLS (SG) limits (CPU 1)
● p9533 SI Motion SLS speed setpoint limit (CPU 1)
● p9351 SI Motion SLS changeover delay time (CPU 2)
● p9551 SI Motion SLS changeover delay time (CPU 1)
● p9363[0...3] SI Motion SLS stop response (CPU 2)
● p9563[0...3] SI Motion SLS (SG)-specific stop response (CPU 1)
● r9720 CO/BO: SI Motion drive-integrated control signals
● r9722.0...15 CO/BO: SI Motion drive-integrated status signals
● r9733[0...1] CO: SI Motion effective speed setpoint limiting
8.5.6.2

Safely Limited Speed without encoder

Functions
Two different encoderless Safely Limited Speed monitoring functions can be set with the
parameters p9506/9306:
● p9506/9306 = 3: Safe monitoring of acceleration (SAM) / delay time
● p9506/9306 = 1: Safe brake ramp monitoring (SBR)
Monitoring the brake ramp
● After activation of the monitoring of the speed setpoint limit "Safely Limited Speed without
● Parameters p9582/p9382 are used to set the delay time for the brake ramp monitoring.
● Monitoring of the brake ramp is activated once the delay time in p9582/p9382 has
● The newly selected SLS limit value is also taken over as the new limit speed, if either
● The function "Safely Limited Speed without encoder" then monitors whether the actual
● The parameterized stop response (p9563[x]) is triggered if the SLS limit value is
Function Manual
Function Manual, 01/2011, 6SL3097-4AB10-0BP3
The function is identical to "Safely Limited Speed with encoder", which was described in
the previous section.
encoder", the motor is immediately braked with the OFF3 ramp from the actual speed to
below the selected SLS limit value.
elapsed. If the actual speed of the drive violates the brake ramp (SBR) during braking,
Safety messages C01706 and C30706 are output and the drive is stopped with STOP A.
– the SBR ramp has reached the new SLS limit value, or
– the actual speed of the drive was below the new SLS limit value for at least the time
set in p9582/p9382.
speed remains below the newly selected SLS limit value.
exceeded.
Safety Integrated Functions
8.5 Safety Integrated Extended Functions
377