Danfoss VLT 2800 Series General Information

Function:
See parameter 423 U1 voltage.
Description of choice:
Set the output frequency (F2) that is to match the sec-
ond output voltage (U2), parameter 425 U2 voltage.
427 U3 voltage
(U3 voltage)
Value:
0.0-999.0 V
par. 103
Function:
See parameter 423 U1 voltage.
Description of choice:
Set the output voltage (U3) that is to match the third
output frequency (F3), parameter 428 F3 frequency .
428 F3 frequency
(F3 frequency)
Value:
Par. 426 F2 frequency - 1000
Hz
Par. 104 Motor
frequency
Function:
See parameter 423 U1 voltage.
Description of choice:
Set the output frequency (F3) that is to match the third
output voltage (U3), parameter 427 U3 voltage .
NOTE
Parameters 437-444 are only used if in
parameter 100 Configuration a selection
has been made of Process regulation,
closed loop. [3].
437 Process PID normal/inverse control
(proc no/inv ctrl)
Value:
Normal (normal) [0]
Inverse (inverse) [1]
Function:
It is possible to choose whether the process regulator
is to increase/reduce the output frequency if there is a
deviation between the reference/setpoint and the ac-
tual process mode.
Description of choice:
If the adjustable frequency drive is to reduce the output
frequency in case the feedback signal increases, se-
lect Normal [0].If the adjustable frequency drive is to
increase the output frequency in case the feedback
signal increases, select Inverse [1].
438 Proces PID anti windup
(proc anti windup)
Value:
Not active (DISABLE) [0]
Active (ENABLE) [1]
Function:
It is possible to select whether the process regulator is
to continue regulating on a deviation even if it is not
possible to increase/reduce the output frequency.
Description of choice:
The factory setting is Enable [1], which means that the
integration link is initialised in relation to the actual out-
put frequency if either the current limit, the voltage limit
or the max./min. frequency has been reached. The
process regulator will not engage again until either the
error is zero or its sign has changed. Select Disable [0]
if the integrator is to continue integrating on the devi-
ation, even if it is not possible to remove the fault by
such control.
NOTE
If Disable [0] is selected, it will mean that
when the deviation changes its sign, the
integrator will first have to integrate down
from the level obtained as a result of the
former error, before any change in output
frequency occurs.
VLT
®
2800 Series
= factory setting, () = display text, [] = value for use in communication via serial communication port
74 MG.27.A2.22 - VLT
®
is a registered Danfoss trademark

Danfoss VLT 2800 Series Specifications

General

Brand	Danfoss
Model	VLT 2800 Series
Category	DC Drives
Language	English