Danfoss VLT 5000 Series, Инструкция по эксплуатации, Страница: 97 / 240

In parameter 115, slip compensation can be adjusted
in detail, which compensates for tolerances in the val-
ue of n
M,N
.
This function is not active together with Variable tor-
que (parameter 101 - variable torque graphs), Torque
control, Speed feedback and Special motor character-
istics.
Description of choice:
Enter a %-value of the rated motor frequency (param-
eter 104).
116 Slip compensation time constant
(SLIP TIME CONST.)
Value:
0.05 - 5.00 sec.
0.50 sec.
Function:
This parameter determines the slip compensation re-
action speed.
Description of choice:
A high value results in slow reaction. Conversely, a low
value results in quick reaction.
If low-frequency resonance problems are encoun-
tered, the time set must be longer.
117 Resonance dampening
(RESONANCE DAMP.)
Value:
0 - 500 %
100 %
Function:
High-frequency resonance problems can be elimina-
ted by setting parameters 117 and 118.
Description of choice:
For less resonance oscillation, the value of parameter
118 must be increased.
118 Resonance dampening time constant
(DAMP.TIME CONST.)
Value:
5 - 50 ms
5 ms
Function:
High-frequency resonance problems can be elimina-
ted by setting parameters 117 and 118.
Description of choice:
Choose the time constant that provides the best damp-
ening.
119 High starting torque
(HIGH START TORQ.)
Value:
0.0 - 0.5 sec.
0.0 sec.
Function:
In order to secure a high starting torque, approx. 2 x
I
VLT,N
for max. 0.5 sec. is allowed. However, the current
is limited by the protection limit of the adjustable fre-
quency drive (inverter).
Description of choice:
Set the necessary time in which a high starting torque
is desired.
120 Start delay (START DELAY)
Value:
0.0 - 10.0 sec.
0.0 sec.
Function:
This parameter enables a delay of the starting time.
The adjustable frequency drive begins with the start
function selected in parameter 121.
Description of choice:
Set the desired time until acceleration is to begin.
121 Start function (START FUNCTION)
Value:
DC hold in start delay time
(DC HOLD/DELAY TIME)
[0]
DC brake in start delay time
(DC BRAKE/DELAY TIME)
[1]
Coasting in start delay time
(COAST/DELAY TIME)
[2]
Start frequency/voltage clockwise. [3]
VLT
®
5000 Series
= factory setting, () = display text, [] = value for use in communication via serial communication port
94 MG.51.C5.22 - VLT
p
is a registered Danfoss trademark.