Siemens 440 User Manual
6 Commissioning
Issue 10/06
MICROMASTER 440
48
Operating Instructions (Compact)
6.4.16 V/f
control
P1300 =...
Control mode
The control type is selected using this parameter. For the "V/f characteristic" control type,
the ratio between the frequency inverter output voltage and the frequency inverter output
frequency is defined.
0 V/f with linear
1 V/f with FCC
2 V/f with parabolic characteristic
3 V/f with programmable characteristic (
The control type is selected using this parameter. For the "V/f characteristic" control type,
the ratio between the frequency inverter output voltage and the frequency inverter output
frequency is defined.
0 V/f with linear
1 V/f with FCC
2 V/f with parabolic characteristic
3 V/f with programmable characteristic (
→ P1320 – P1325)
P1310 =...
Continuous boost
(entered in %)
Voltage boost as a % relative to P0305 (rated motor current) and P0350 (stator resistance).
P1310 is valid for all V/f versions (refer to P1300). At low output frequencies, the effective
resistance values of the winding can no longer be neglected in order to maintain the motor
flux.
P1310 is valid for all V/f versions (refer to P1300). At low output frequencies, the effective
resistance values of the winding can no longer be neglected in order to maintain the motor
flux.
f
Linear V/f
OFF
ON
t
t
⏐f⏐
P1310 active
t
0
1
Validity range
Vmax
Vn
(P0304)
V
ConBoost,100
0
fn
(P0310)
f max
(P1082)
V
f
Boost,end
(P1316)
Boost
Ou
tpu
t v
olt
ag
e
actual V
No
rm
al
V/
f
(P
13
00
=
0
)
V
ConBoost,50
Boost voltage
P1311 =...
Acceleration boost
(entered in %)
Voltage boost for accelerating/braking as a % relative to P0305 and P0350. P1311 only
results in a voltage boost when ramping-up/ramp-down and generates an additional torque
for accelerating/braking. Contrary to parameter P1312, that is only active for the 1
results in a voltage boost when ramping-up/ramp-down and generates an additional torque
for accelerating/braking. Contrary to parameter P1312, that is only active for the 1
st
acceleration operation after the ON command, P1311 is effective each time that the drive
accelerates or brakes.
accelerates or brakes.
Vmax
Vn
(P0304)
V
AccBoost,100
0
fn
(P0310)
fmax
(P1082)
f
V
f
Boost,end
(P1316)
V
AccBoost,50
Boost
U/
f n
orm
al
(P
13
00
=
0)
V ist
Au
sg
an
gs
sp
an
nu
ng
OFF
ON
t
t
⏐f⏐
P1311 aktiv
t
0
1
Boost-Spannung
Gültigkeitsbereich
0
50.00 %
0.0 %