F Characteristic - Siei QUIX.-2M-0004 Manual De Instrucciones

V / F characteristic
P
ARA
F
UNCTION
METER
P-03 Determines the
P-03 P-03
P-03 P-03
voltage to be ap-
plied to the mo-
tor as a function
of the frequency
P
ARA
F
UNCTION
METER
To customize the cha-
P-70 P-70
P-70 P-70 P-70
racteristic:
P-71 P-71 the change is possi-
P-71 P-71 P-71
ble only if P-03 = 0
P-72 P-72 P-72 P-72 P-72
P-02 P-02 P-02 P-02 P-02
Selects the max. vol-
tage applied to the
motor.
Rating value of
the motor V.
P-04 P-04
P-04 P-04 P-04
Increases the ou-
tput voltage at 0 Hz
(% of P-02) and the
torque .
P-73 P-73 P-73 P-73 P-73
Selects the freq. ap-
plied to the motor at start.
P-74 P-74 P-74 P-74 P-74
Limits the voltage
applied to the motor(%
of P-02).
b-16 b-16 b-16
b-16 b-16
Controls the voltage
reduction set by P-74
parameter.
P-84 P-84 P-84 P-84 P-84
States the max. spe-
ed of voltage change
P-03=1
V
P-02
(P-02)/2
(P-72)
25
(P-71)
Fig.A
V
P-02
P-72
P-04
P-71
R VA
ANGE
LUE
[ D ]
EFAULT
Each parameter value correspond to a
0 - 4
[ 1 ] different characteristic:
user-defined characteristic
0
linear characteristic for 50 Hz motors
1
linear characteristic for 60 Hz motors
2
quadratic characteristic for 50 Hz motors
3
quadratic characteristic for 60 Hz motors
4
R
ANGE
[ D ]
EFAULT
(P-71) - 480.0
Selects the motor base frequency (rated); this frequency is associated to the
[ 50.0 ] (Hz)
motor max. voltage (max. V set via P-02 and P74) .
0 - (P-70)
Selects the intermediate frequency.
[ 25.0 ] (Hz)
0 - (P-02)
Selects the voltage applied to the motor as regards the intermediate
[ (**) ] (V)
frequency.
(P-72) - (**) (V)
To make this value independent from the inverter supply voltage fluctuation
[ (**) ]
enable the automatic adjustement function of the output voltage by setting b-
32=1. In this case, the inverter can be supplied through a voltage higher than the
motor rated one. If b-32=0 then the voltage value set by P-02 must match the
motor rated voltage.
0 - 30
The set voltage increase is added to the V/F characteristic in a decreasing
[ 3 ] way, until it is annulled at F= Fintermedia. (figure A)
0 - 25.0 It is the ramp begin frequency at the start and the ramp end frequency at the
[ 0.0 ] (Hz)
stop.
0 - 100
[ 100 ] The max. output voltage is limited to the value (P-74*P-02)/100.
0=always; If b-16=0 the reduction is always active; if b-16=1 the reduction is not active during
1=con. speed only the ramps, so that the torque is completely available both in acceleration and
[ 0 ]
deceleration state (figure B)
0.1 - 25.0 (s)
Time needed to go from 0% to 100% of V and viceversa
[ 0.2 ] NOTE : too short times cause excessive current peaks.
[ (**) ] = The default value depends on the inverter size.
P-03=3
V
P-02
(P-02)/4
f 25
50
(P-70)
f
P-70
—————— QUIXDrive Inverter ——————
D
ESCRIPTIION
D
ESCRIPTION
P-03=2
V
P-02
(P-02)/2
f
50 30
V
Fig.B
100%
P-74
→
P-84
f
INVERTER PARAMETERS
A
SSOCIATED
PARAMETERS
P-02
P-04
P-73 P-74
P-02 P-04
b-16 b-32
P-03=4
V
P-02
(P-02)/4
60 f 30
←
P-70 P-71 P-72
P-84 b-16 b-32
P-73 P-74 P-84
60 f
t
23-GB
t