Siemens SINAMICS S120 Commissioning Manual page 256

Commissioning
4.10 Safety Integrated commissioning
6. Click the
The dialog box "Stop response C/D/E" opens. The settings are identical to screen form
"SS2".
Set the desired motor deceleration here (see Chapter "SS2 (extended functions)
(Page 241)")
7. In field "Setpoint velocity limitation SLS level" (p9533) enter a weighting factor to
determine the setpoint limit from the selected actual speed limit in percent.
Result
The speed limit value of the drive is configured. The present SLS limit value is displayed in
the field of that name (r9714[2]). The effective setpoint limit is displayed in the field of that
name (r9733). It is used, for example, to transmit values to a higher-level control, which can
then, for example, adjust traversing speeds to the SLS levels or to the setpoint channel
(p1051). The effective setpoint limit is part of the Safety Info Channel (SIC).
SLS without encoder
Features:
● If the speed setpoint limitation (r9733) was connected to the setpoint channel
(p1051/p1052) and then SLS was selected – or if you change over to a lower SLS level –
the motor is decelerated from the actual speed to below the value defined with r9733
along the OFF3 ramp. In this case, the drive may no longer follow the setpoint of the
higher-level motion controller.
● Parameter p9582 is used to set the delay time for the braking ramp monitoring.
● Monitoring of the brake ramp is activated once the delay time in p9582 has elapsed. If the
actual speed of the drive violates the brake ramp (SBR) during braking, safety message
C01706 is output and the drive is stopped with STOP A.
● The newly selected SLS limit value becomes the new limit speed in the following cases:
– As soon as the SBR ramp reaches the new SLS limit value.
– When the actual speed of the drive has remained below the new SLS limit value for at
● The "Safely-Limited Speed without Encoder" function then monitors whether the actual
speed remains below the newly selected SLS limit value.
● The parameterized stop response (p9563[x]) is triggered if the SLS limit value is
exceeded.
● Only STOP A and STOP B may be configured as stop responses for "Safely-Limited
Speed" (SLS) without encoder.
Settings
See "Setting the SLS via PROFIsafe with encoder and onboard terminals" or "SLS without
selection", taking account of the functional characteristics of SLS without encoder.
256
icon to open the configuration for the speed limit.
least the time set in p9582.
Commissioning with Startdrive
Commissioning Manual, 11/2017, 6SL3097-4AA10-0BP1