Siemens SINAMICS G150 Operating Instructions Manual page 430

Setpoint channel and closed-loop control
7.3 V/f control
Parameter Meaning
value
5 Precise frequency
drives (textiles)
6 Precise frequency
drives with flux cur-
rent control (FCC)
7 Parabolic character-
istic and ECO
19 Independent voltage
setpoint
Function diagram
FP 6301
Parameter
• p1300
• p1320
• p1327
• p1330
• p1331
• p1333
• r1348
• p1350
430
Characteristic (see parameter value 0) that takes into account the specific technolog-
ical features of an application (e.g. textile applications).
The current limitation (Imax controller) only affects the output voltage and not the
•
output frequency.
The slip compensation and resonance damping are disabled.
•
Characteristic (see parameter value 1) that takes into account the specific technolog-
ical features of an application (e.g. textile applications).
The current limitation (Imax controller) only affects the output voltage and not the
•
output frequency.
The slip compensation and resonance damping are disabled.
•
Voltage losses in the stator resistance for static / dynamic loads are also compen-
sated (flux current control, FCC). This is particularly useful for small motors, since
they have a relatively high stator resistance.
Characteristic (see parameter value 1) and Eco mode at constant operating point.
At constant operating point, the efficiency is optimized by varying the voltage.
•
Active slip compensation is necessary here; the scaling must be set so that the
•
slip is fully compensated (p1335 = 100%).
The user can define the output voltage of the Power Module independently of the
frequency using BICO parameter p1330 via the interfaces (e.g., analog input AI0 of
the TM31 –> p1330 = r4055[0]).
V/f characteristic and voltage boost
Open-loop/closed-loop control operating mode
V/f control programmable characteristic frequency 1
...
V/f control programmable characteristic voltage 4
CI: V/f control independent of voltage setpoint
Voltage limitation
V/f control FCC starting frequency
V/f control Eco factor actual value
V/f control soft starting
Application / property
Operating Instructions, 07/2016, A5E03347396A
Converter cabinet units