Siemens SINAMICS S120 Function Manual page 304

V/f control (vector control)
6.2 Voltage boost
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
Figure 6-4
Function diagrams (see SINAMICS S120/S150 List Manual)
• 6301
Overview of important parameters (see SINAMICS S120/S150 List Manual)
• p0304[0...n]
• p0305[0...n]
• r0395[0...n]
• p1300[0...n]
• p1310[0...n]
• p1311[0...n]
• p1312[0...n]
• r1315
304
= p0305 (rated motor current · p0395 (actual stator resistance) · p1311 (voltage when
accelerating)
Voltage boost while accelerating (example: p1300 = 0 and p1311 > 0)
Vector control - V/f characteristic and voltage boost
Rated motor voltage
Rated motor current
Current stator resistance
Open-loop/closed-loop control operating mode
Starting current (voltage boost) permanent
Starting current (voltage boost) acceleration
Starting current (voltage boost) when starting
Voltage boost total
Function Manual, 11/2017, 6SL3097-4AB00-0BP5
Drive functions