Siemens SINAMICS S120 Function Manual page 257

Parameter Meaning
values
3 Programmable
characteristic
4 Linear
characteristic and
ECO
5 Precise frequency
drives
6 Precise frequency
drives with flux
current control
(FCC)
7 Parabolic
characteristic and
ECO
19 Independent
voltage setpoint
Drive functions
Function Manual, (FH1), 01/2013, 6SL3097-4AB00-0BP3
Characteristic that takes into account
motor/machine torque curve (e.g.
synchronous motor).
Characteristic, see parameter 0 and Eco mode at a constant operating point.
In the ECO mode, the efficiency at a constant operating point is optimized. This
•
optimization is only effective in steady-state operation and when the ramp-function
generator is not bypassed.
You must activate slip compensation and set the scaling of the slip compensation
•
(p1335) so that the slip is completely compensated (generally, 100%).
Characteristic that takes into account the technological particularity of an application
(e.g. textile applications):
a) whereby the current limitation (Imax controller) only affects the output voltage and
not the output frequency, or
b) by disabling slip compensation
Characteristic that takes into account the technological particularity of an application
(e.g. textile applications):
a) whereby the current limitation (Imax controller) only affects the output voltage and
not the output frequency, or
b) by disabling slip compensation
Voltage losses in the stator resistance for static/dynamic loads are also compensated
(flux current control FCC). This function is required for small motors, as, in comparison
to large motors, they have a relatively high stator resistance.
Characteristic, see parameter 1 and ECO mode at a constant operating point.
In the Eco mode, the efficiency at a constant operating point is optimized. This
•
optimization is only effective in steady-state operation and when the ramp-function
generator is not bypassed.
You must activate slip compensation and set the scaling of the slip compensation
•
(p1335) so that the slip is completely compensated (generally, 100%).
The user can define the output voltage of the Motor Module independently of the
frequency using BICO parameter p1330 via the interfaces (e.g. analog input AI0 of
Terminal Board 30 –> p1330 = r4055[0]).
Application / property
U/f control (vector control)
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