Siemens SINAMICS S120 Function Manual page 594

Function modules
8.14 Advanced Position Control (including Active Vibration Suppression)
Overview of the functions integrated in APC
The APC function module can be subdivided into 4 main subfunctions:
● Active Vibration Suppression (APC without sensor on the load side) (Page 597):
– Rugged function to dampen oscillation.
– Does not require a direct measuring system
● APC with encoder combination and differential position feedback (Page 604):
– Influencing the speed controller loop. The speed control response can be improved
– Requires a direct measuring system.
– 2 functions are involved, which can be advantageously used together.
● APC with acceleration feedback (Page 609):
– Requires a direct measuring system.
– Uses the acceleration - measured using the direct measuring system - to dampen
– An external acceleration sensor can be used instead of measuring the acceleration
● APC with load velocity control (Page 616):
– Requires a direct measuring system.
– P control of the velocity at the direct measuring system.
Preconditions
● The "Advanced Position Control" (APC, r0108.7) function module for SINAMICS S120 is
only available for servo control.
● For some functions integrated in the APC, a 2nd measuring system is required. A more
detailed description of the associated preconditions is documented in the description of
the various subfunctions.
● Based on experience, frequencies of up to 100 Hz can be influenced by APC. Whether an
oscillation can be influenced depends on how the mechanical system affects the closed-
control - or how the speed controller loop was set.
● For all functions of the "Advanced Position Control" function module, including "Active
Vibration Suppression", the license: "Active Vibration Suppressions (APC/AVS)" is
required.
594
(e.g. by increasing the speed controller gain).
oscillation.
using a direct measuring system.
Function Manual, 11/2017, 6SL3097-4AB00-0BP5
Drive functions