Siemens SINAMICS S120 - Page 304

V/f control (vector control)
6.2 Voltage boost
Drive functions
304 Function Manual, 11/2017, 6SL3097-4AB00-0BP5
Voltage boost while accelerating
Voltage boost while accelerating is effective if the ramp-function generators provide the
feedback signal "ramp-up active" (r1199.0 = 1).
V
acceleration
= p0305 (rated motor current · p0395 (actual stator resistance) · p1311 (voltage when
accelerating)
Figure 6-4 Voltage boost while accelerating (example: p1300 = 0 and p1311 > 0)
Function diagrams (see SINAMICS S120/S150 List Manual)
•
6301
Vector control
- V/f characteristic and voltage boost
Overview of important parameters (see SINAMICS S120/S150 List Manual)
•
p0304[0...n]
Rated motor voltage
•
p0305[0...n]
Rated motor current
•
r0395[0...n]
Curr
ent stator resistance
•
p1300[0...n]
Open
-loop/closed-loop control operating mode
•
p1310[0...n]
Starting current (voltage boost) permanent
•
p1311[0...n]
Starting current (voltage boost) acceleration
•
p1312[0...n]
Starting current (voltage boost) when starti
ng
•
r1315
Voltage boost total