Siemens SINAMICS S120 - SP (Advanced Functions)

Commissioning
4.10 Safety Integrated commissioning
Commissioning with Startdrive
Commissioning Manual, 11/2017, 6SL3097-4AA10-0BP1
273
4.10.5.3
SP (Advanced Functions)
The "Sichere Position" ("SP") function enables you to transfer safe position values to the
higher-level fail-safe controller (F-CPU) via PROFIsafe (telegrams 901, 902, or 903).
From the position change over time, the F-CPU can also calculate the current velocity. In
telegram 902, the values are transferred in 32-bit format, in telegram 901, in 16-bit format.
After parameter assignment, release and POWER ON, the function is automatically selected
and the values transferred. Note the following information:
● Transfer of safe absolute position values
– If the transfer of the safe relative position has been enabled through p9501.25 = 1 and
p9501.2 = 0, the validity of the safe relative position is displayed by the set bit
S_ZSW2.22.
– If the transfer of the safe absolute position has been enabled using p9501.25 = 1 and
p9501.2 = 1, S_ZSW2.22 is only set when the drive has also been safely homed.
● Transfer of safe relative position values (e.g. for calculating the velocity)
– Only S_ZSW2.22 (r9722.22, actual position value valid) must be set to calculate the
speed.
Example:
Precondition
● The control type "via PROFIsafe" must be activated (see Section "Making basic safety
settings (Page 223)").