Siemens SINAMICS S110 - Safe Current Actual Value Acquisition Without Encoder

Safety Integrated Functions
8.5 Safety Integrated Extended Functions
Function Manual
408 Function Manual, 01/2011, 6SL3097-4AB10-0BP3
8.5.13.2 Safe current actual value acquisition without encoder
Several parameters are available in order to guarantee safe motion monitoring for Safety
Extended functions without encoder depending on the situation in your particular application.
You define these parameters in the following STARTER dialog box:
Figure 8-16 Configuration, actual value acquisition without encoder
In most cases, you can work with the default values. If the converter outputs unnecessary
messages/signals – especially during the starting phase – then increase the value of the
selected parameter Delay time actual value acquisition (p9586/p9386).
Instructions to determine the correction value using the trace function are provided in the
"Reaction times" section. Alternatively, you can change the value of p9586/p9386 in small
steps and then monitor the system reaction. You have found a suitable value if unnecessary
messages/signals no longer occur.
Overview of important parameters (see SINAMICS S110 List Manual)
● p9386 SI Motion delay time of the evaluation, encoderless (processor 2)
● p9387 SI Motion actual value acquisition encoderless filter time (processor 2)
● p9388 SI Motion actual value acquisition encoderless minimum current (processor 2)
● p9389 SI Motion voltage tolerance acceleration (processor 2)
● p9586 SI Motion delay time of the evaluation, encoderless (CU)
● p9587 SI Motion actual value acquisition encoderless filter time (processor 1)
● p9588 SI Motion actual value acquisition encoderless minimum current (processor 1)
● p9589 SI Motion voltage tolerance acceleration (processor 1)