Technical data
  Expert Functions 
  5.3 Disabling the PROFIBUS Sign-of-Life Monitoring 
Connection of the SINAMICS S120 to the Technology CPU 
Product Information, 09/2011, A5E00480378-04 
145 
5.3  Disabling the PROFIBUS Sign-of-Life Monitoring 
Principle 
The PROFIBUS connection between the technology CPU and the SINAMICS S120 is 
monitored using a sign of life. The sign-of-life monitoring is selected automatically when the 
axis is created and should always be active during operation. 
For diagnostic purposes, the sign-of-life monitoring can be disabled temporarily during the 
commissioning. 
The parameters for the sign-of-life monitoring can be selected/deselected on the Axis 
technology object with "Expert list > Configuration data" or on the drive using the "p0925" 
parameter. 
To do this, mark "Axis_1" and select the Expert list menu command in the context menu. 
Switch in the expert list to the "Configuration data" tab and to the 
"\TypeOfAxis\NumberOfEncoders\Encoder_1\DriverInfo\lifeSignCheck" dialog there. 
Alternatively, you can also select the Expert list > p0925 menu command in the "Drive_1" 
context menu. 
Sign-of-life monitoring  \DriverInfo \lifeSignCheck  p0925 
On  Yes  1 
Off  No  65535 










