1-52 Min Speed Normal Magnetising [Hz]
Range:
Function:
0.0 Hz
*
[0.0 - 10.0
Hz]
Set the required frequency for normal
magnetising current.
Use this parameter along with
. See drawing
for
1-50 Motor Magnetisation at Zero
1-55 U/f Characteristic - U
Range:
Function:
Size related
*
[0.0 - 999.0 V] Enter voltage at each frequency
point to manually form a U/f charac-
teristic matching motor. Frequency
points are defined in
.
1-56 U/f Characteristic - F
Range:
Function:
Size
related
*
[0.0 -
400.0
Hz]
Enter frequency points to manually form a U/f
characteristic matching motor. Voltage at each
point is defined in
.
Make a U/f characteristic based on 6 definable
voltages and frequencies, see below figure.
Simplify U/f characteristics by merging 2 or
more points (voltages and frequencies), respec-
tively, are set equal.
Motor Voltage
Par 1-55 [x]
Output Frequency
Par 1-56 [x]
1-55[5]
1-55[4]
1-55[3]
1-55[2]
1-55[1]
1-55[0]
1-56
[0]
1-56
[1]
1-56
[2]
1-56
[3]
1-56
[4]
1-56
[5]
130BA166.10
3.2.6 1-6* Load Depend. Setting
1-62 Slip Compensation
Range:
Function:
0 %
*
[-400 - 399
%]
Enter the % value for slip compensation to
compensate for tolerances in the value of n
M,N
.
Slip compensation is calculated automatically,
i.e. on the basis of the rated motor speed
n
M,N
.
1-63 Slip Compensation Time Constant
Range:
Function:
0.1 s
*
[0.05 - 5.0 s] Enter the slip compensation reaction speed.
A high value results in slow reaction, and a
low value results in quick reaction. If low-
frequency resonance problems arise, use a
longer time setting.
1-64 Resonance Dampening
Range:
Function:
100.0 %
*
[0.0 - 500.0
%]
Enter the resonance dampening value. Set
and
1-65 Resonance Dampening Time Constant
to help eliminate high-frequency
resonance problems. To reduce resonance
oscillation, increase the value of
1-65 Resonance Dampening Time Constant
Range:
Function:
0.0050 %
*
[0.0050 - 0.05
%]
Set
and
1-65 Resonance Dampening Time
Constant
to help eliminate high-
frequency resonance problems. Enter
the time constant that provides the
best dampening.
3.2.7 1-7* Start Adjustments
1-71 Start Delay
Range:
Function:
0.0 s
*
[0.0 - 10.0
s]
This parameter enables a delay of the starting
time. The frequency converter begins with the
start function selected in
.
Set the start delay time until acceleration is to
begin.
1-72 Start Function
Option:
Function:
[0]
DC Hold/delay
time
Motor is energized with
during start delay
time.
[2]
*
Coast/delay time
Inverter is coasted during start delay time
(inverter off).
1-73 Flying Start
Option:
Function:
Select Enable [1] to enable the frequency converter
to catch a motor spinning due to mains drop-out.
Select Disable [0] if this function is not required.
When par. 1-73 is enabled par. 1-71 and 1-72 have
no function. Par 1-73 is active in VVC+ mode only.
[0]
*
Disabled
[1]
Enabled
Parameters
VLT HVAC Basic Drive Programming Guide
MG.18.B1.02 - VLT
®
is a registered Danfoss trademark
27
3
3
Содержание VLT HVAC
Страница 1: ...MAKING MODERN LIVING POSSIBLE Programming Guide VLT HVAC Basic Drive...
Страница 98: ...www danfoss com drives MG18B102 130R0221 MG18B102 Rev 2010 07 21...
Страница 99: ......
