General converter technical data (Page 1086)
Table 6-95
Linear and parabolic characteristics
Requirement
Application examples
Remark
Characteristic
Parameter
The required tor‐
que is independ‐
ent of the speed
Eccentric-worm pump,
compressor
-
Linear
p1300 = 0
The converter compensates for the voltage
drops across the stator resistance. Recom‐
mended for motors of less than 7.5 kW.
Precondition: The motor data has been set
according to the rating plate and the motor
has been identified after the basic commis‐
sioning.
Linear with Flux
Current Control
(FCC)
p1300 = 1
The required tor‐
que increases with
the speed
Centrifugal pumps, radi‐
al fans, axial fans, com‐
pressors
Lower losses in the motor and converter
than with the linear characteristic.
Parabolic
p1300 = 2
Table 6-96
Characteristics for special applications
Requirement
Application examples
Remark
Characteristic
Parameter
Applications with a
low dynamic re‐
sponse and con‐
stant speed
Centrifugal pumps, radi‐
al fans, axial fans
The ECO mode saves more energy than
the parabolic characteristic.
If the speed setpoint is reached and re‐
mains unchanged for 5 seconds, the con‐
verter reduces its output voltage again.
ECO mode
p1300 = 4
(linear char‐
acteristic
ECO)
or
p1300 = 7
(parabolic
characteris‐
tic ECO)
Advanced commissioning
6.7 Motor control
SINAMICS G120X converter
Operating Instructions, 06/2019, FW V1.01, A5E44751209B AC
379
Содержание SINAMICS G120X
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