Siemens SINAMICS S120 Function Manual page 163

Voltage boost at acceleration (p1311)
The voltage boost when accelerating is effective if the ramp-function generators
provide the feedback signal "ramp-up active" (1199.0 = 1)
V
max
(p 0304)
V
accelerate
V
acceleration
Fig. 3-46
Function diagram for voltage boost (see List Manual)
S 6300
Parameters for voltage boost (see List Manual)
S p0304[0...n]
S p0305[0...n]
S p0395[0...n]
S p1310[0...n]
S p1311[0...n]
S r1315
© Siemens AG 2006 All Rights Reserved
SINAMICS S120 Function Manual, 03/2006 Edition
V
V
n
0
= p0305 ( rated motor current ) x
p0395 ( current stator resistance ) x
p1311 ( voltage at acceleration )
Voltage boost at acceleration (example: p1300 and p1311 = 0)
V/f characteristic and voltage boost
Rated motor voltage
Rated motor current
Stator resistance current
Voltage boost permanent
Voltage boost at acceleration
Voltage boost total
Vector V/f control (r0108.2 = 0)
V/
f linear
f
n
(p 0310)
Operating Modes
f
f
max
(p 1082 / no.
of pole pairs )
3-163