Siemens SINAMICS S150 NEMA, Руководство по эксплуатации

Страница: 452 / 862

Setpoint channel and closed-loop control
7.3 V/f (V/Hz) control
Enclosed Drives
450
Operating Instructions, 12/2018, A5E36652151A
Parameter
value
Meaning Application / property
5 Precise frequency
drives (textiles)
Characteristic (see parameter value 0) that takes into account the specific
technological 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.
6 Precise frequency
drives with flux
current control (FCC)
Characteristic (see parameter value 1) that takes into account the specific
technological 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
compensated (flux current control, FCC). This is particularly useful for small motors,
since they have a relatively high stator resistance.
7 Parabolic
characteristic and
ECO
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%).
19 Independent voltage
setpoint
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]).
Function diagram
FP 6301 V/f characteristic and voltage boost
Parameters
• p1300
Open-loop/closed-loop control operating mode
• p1320
V/f control programmable characteristic frequency 1
...
•
p1327
V/f control programmable characteristic voltage 4
•
p1330
CI: V/f control independent of voltage setpoint
•
p1331
Voltage limitation
•
p1333
V/f control FCC starting frequency
•
r1348
V/f control Eco factor actual value
•
p1350
V/f control soft starting