Siemens Sinamics S120 Commissioning Manual page 117

Speed actual value
Speed actual value with/without encoder
● With encoder
● Without encoder
Process data interface
If the incoming speed setpoint is read in parameter r8863[x], this is formed from the following
calculation:
In order to see the process value specified via the bus referred to 4000 000 hex in r8863[x],
then p2000 must be set to p0311.
Note
For an operating mode without encoder, an encoder can still be commissioned. Example: for
encoderless closed-loop speed control (p1300 = 20) or encoderless closed-loop torque
control (p1300 = 22). For these operating modes, the velocity is calculated using the formula
"with encoder".
CANopen interface
Commissioning Manual, 11/2017, 6SL3097-4AA00-0BP3
Calculation/conversion setpoints/actual values
5.1 Speed setpoint input and evaluation of the speed actual value
117