Siemens SINAMICS G120D Original Instructions Manual page 61

Position and speed controllers operating with HTL encoder
Figure 5-3
Advantage:
Disadvantage:
Position controller operates with SSI encoder, speed controller without an encoder
Figure 5-4
Advantage:
Disadvantages:
Converter with control units CU250D-2
Operating Instructions, 04/2014, FW V4.7, A5E34261542B AA
HTL encoder on the motor axis for position and speed controllers
Favorably-priced solution.
Depending on the gear ratio, restrictions regarding the accuracy of the
position control.
SSI encoder on the load side for the position controller, speed controller without an
encoder
Favorably-priced solution.
• Restrictions regarding the accuracy and dynamic performance of the
position control
• Travel to fixed stop is not possible.
Commissioning
5.2 Preparing for commissioning
61