Decentral Solutions
Programming, FCD
300
426 F2 frequency
(F2 FREQUENCY)
Value:
Par. 424
F1 frequency
- par. 428
F3 frequency
✭
Par. 104
Motor frequency
Function:
See parameter 423
U1 voltage
.
Description of choice:
Set the output frequency (F2) that is to match the
second 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 actual process mode.
Description of choice:
If the variable frequency drive is to reduce
the output frequency in case the feed-
back signal increases, select
Normal
[0].
If the variable 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 initialized in relation to the
actual output 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 deviation, 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.
✭
= factory setting. () = display text [] = value for use in communication via serial communication port
MG.90.F2.22 - VLT is a registered Danfoss trademark
145