Siemens SINAMICS G110M Operating Instructions Manual page 291

• Line impedance
• Actual motor torque
The maximum possible output voltage as a function of the input voltage is provided in the
technical data.
Table 8-67
Requirement
The required
torque is inde‐
pendent of the
speed
The required
torque increa‐
ses with the
speed
Table 8-68
Requirement
Applications
with a low dy‐
namic response
and constant
speed
The converter
must maintain
the motor
speed constant
for the longest
possible time.
Freely adjusta‐
ble U/f charac‐
teristic
U/f characteris‐
tic with inde‐
pendent volt‐
age setpoint
Distributed converter for SIMOGEAR geared motors
Operating Instructions, 10/2020, FW V4.7 SP13, A5E31298649B AL
Performance ratings Power Module - PM240M (Page 390)
The characteristic that matches the application
Application exam‐
ples
Conveyor belts,
roller conveyors,
chain conveyors,
eccentric worm
pumps, compres‐
sors, extruders,
centrifuges, agita‐
tors, mixers
Centrifugal
pumps, radial fans,
axial fans
Characteristics for special applications
Application exam‐
ples
Centrifugal
pumps, radial fans,
axial fans
Drives in the textile
sector
-
-
Remark
-
The converter compensates for the
voltage drops across the stator re‐
sistance. Recommended for mo‐
tors less than 7.5 kW.
Precondition: You have set the mo‐
tor data according to the rating
plate and have performed the mo‐
tor identification after quick com‐
missioning.
Lower losses in the motor and con‐
verter than for a linear characteris‐
tic.
Remark
If the speed setpoint is reached and
remains unchanged for 5 seconds,
then the converter reduces its out‐
put voltage.
As a consequence, the ECO mode
saves energy with respect to the
parabolic characteristic.
When reaching the maximum cur‐
rent limit, the converter only re‐
duces the output voltage, but not
the frequency.
-
The interrelationship between the
frequency and voltage is not calcu‐
lated in the converter, but is speci‐
fied by the user.
Advanced commissioning
8.19 Motor control
Charac‐ Parameter
teristic
Linear p1300 = 0
Linear p1300 = 1
with Flux
Current
Control
(FCC)
Parabolic p1300 = 2
Charac‐ Parameter
teristic
ECO p1300 = 4
mode or
p1300 = 7
Precise p1300 = 5
frequen‐ or
cy charac‐ p1300 = 6
teristic
Adjusta‐ p1300 = 3
ble char‐
acteristic
Inde‐ p1300 = 19
pendent
voltage
setpoint
289