Siemens SINAMICS G220 - Page 684

Settings
The safe actual value acquisition can be con󹪝gured for linear and rotary axis types.
Con󹪝guration of the actual value acquisition/mechanical system encompasses the following
settings:
• Encoder data
• Leadscrew pitch for linear axes
• Gearbox ratios:
Con󹪝guring the gearbox between the encoder and load with encoder revolutions and load
revolutions.
• Direction of rotation reversal:
Sets whether the gearbox inverts the direction of rotation.
The properties of safe actual value acquisition determine the best possible values for motion
monitoring:
• Safe maximum velocity
– The permissible maximum velocity on the load side results from the encoder type used
and the encoder parameterization.
– When the maximum velocity is exceeded, it is no longer possible to acquire safe encoder
actual values for the motion monitoring.
• Safe position accuracy
By acquiring the actual values, this position accuracy is the best possible.
More information
Information on suitable motors and encoders for Safety Integrated is provided on the Internet:
Suitable motors and encoders (
https://support.industry.siemens.com/cs/ww/en/view/
33512621)
Parameters
The following list contains the parameters of the "Actual value acquisition/mechanical system"
function.
Number Name Unit
p0408[0...n] Rotary encoder pulse number 
r9502 SI axis type 
p9516.1 SI encoder con󹪝guration, safety functions 
p9520 SI leadscrew pitch [mm]
p9521[0...7] SI gearbox encoder (motor)/load denominator 
p9522[0...7] SI gearbox encoder (motor)/load numerator 
p9533 SI SLS setpoint speed limiting [%]
p9539[0...7] SI gearbox rotation reversal 
p9630 SI safe maximum speed encoder (rotary) [rpm]
p9631 SI safe position accuracy encoder (rotary) [°]
r9634 SI safe maximum speed encoder detected (rotary) [rpm]
Functions
14.12Safety Integrated
SINAMICS G220 converter
682 Operating Instructions, 04/2024, FW V6.2, A5E51781573B AB