Siemens SINAMICS S120 Function Manual page 147

Voltage boost at acceleration (p1311)
Vma
x
(p0304 )
V
accelerate
V
acceleration
Fig. 3-42
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, 2005. All rights reserved
SINAMICS S120 Function Manual, 06/05 Edition
V
Vn
u t
O
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
g e
t a
o l
t v
p u
a l
r m
n o
/ f
V
fn
(p0310 )
Operating Modes
fmax
f
(p1082 /
. of pole
no
)
pairs
3-147