Vaidnor VDF650 Series, Руководство пользователя

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VDF650 User Manual Desc
ription of Function Codes
-
157
-
Function Code Parameter Name Setting Range Default
P3
-
01 Torque boost 0
.
0
%–
30
%
Model
dependent
P3
-
02
Cut
-
off frequency of
torque boost
0
.
00 Hz to maximum output
frequency
50
.
00 Hz
To compensate the low frequency torque characteristics of V
/
F control
,
you can boost the
output voltage of the AC drive at low frequency by modifying P3
-
01
.
If the torque boost is set to too large
,
the motor may overheat
,
and the AC drive may suffer
overcurrent
.
If the load is large and the motor startup torque is insuffcient
,
increase the value of P3
-
01
.
If the load is small
,
decrease the value of P3
-
01
.
If it is set to 0
.
0
,
the AC drive performs
automatic torque boost
.
In this case
,
the AC drive automatically calculates the torque boost
value based on motor parameters including the stator resistance
.
P3
-
02 specifies the frequency under which torque boost is valid
.
Torque boost becomes
invalid when this frequency is exceeded
,
as shown in the following fgure
.
Figure 6
-
4 Manual torque boost
Output
frequency
Output
voltage
Vb
fb P1
V1
P1
:
Cutoff frequency of
manual torque boost
fb
:
Rated running
frequency
Vb
:
Maximum
output voltage
V1
:
Voltage of
manual torque boost
Function Code Parameter Name Setting Range Default
P3
-
03 Multi
-
point V
/
F frequency 1
(
P1
)
0
.
00 Hz to P3
-
05 0
.
00 Hz
P3
-
04 Multi
-
point V
/
F voltage 1
(
V1
)
0
.
0
%–
100
.
0
%
0
.
0
%
P3
-
05 Multi
-
point V
/
F frequency 2
(
P2
)
P3
-
03 to P3
-
07 0
.
00 Hz
P3
-
06 Multi
-
point V
/
F voltage 2
(
V2
)
0
.
0
%–
100
.
0
%
0
.
0
%
P3
-
07 Multi
-
point V
/
F frequency 3
(
P3
)
P3
-
05 to rated motor
frequency
(
P1
-
04
)
Note
:
The rated frequencies
of motors 2
,
3
,
and 4 are
respectively set in A2
-
04
,
A3
-
04
,
and A4
-
04
.
0
.
00 Hz
P3
-
08 Multi
-
point V
/
F voltage 3
(
V3
)
0
.
0
%–
100
.
0
%
0
.
0
%