KFU 2-/4-
196
Operation mode filling level 1, parameter
Operation mode
440 = 2
This operation mode can be used, for example, for contents level control.
If the actual value is missing, the function brings the output frequency to an adjust-
able value.
The minimum value monitoring prevents an acceleration of the drive if the actual
value is missing.
If the actual value is missing (< 0.5%) the output frequency is guided to the
Fixed
frequency
441
. This is done using the set
Deceleration (clockwise)
421
.
The
Fixed frequency
441
must be in the range between
Minimum frequency
418
and
Maximum frequency
419
. If the
Fixed frequency
441
is set to a value smaller
than the
Minimum frequency
418
, the output frequency is guided to
Minimum fre-
quency
418
. The frequency will not drop below
Minimum frequency
418
.
If the actual value is available again, the controller continues operation automatically.
Tech
nology
Control
ler
Ac
t.
P
er
ce
nt
ag
e
Sou
rce
478
Ref. Percenta
ge
Channel
Re
f. Pe
rc
en
ta
ge
So
urce
476
Min
imum v
alue
> 0
.50
%
P.
47
8
0.50%
<
Ampl
ifi
cat
io
n
444
P
De
riv
ati
ve
Tim
e
618
I
Int
eg
ra
l T
im
e
445
+
+
-
Ma
x. P
-Co
m
p
o
n
en
t
Limitati
o
n
Ma
x.
I-C
o
m
p
o
n
en
t
Fi
xe
d
Fr
equ
enc
y
