7.5.2
For operation as P-Controller
2.01
,
3.01
Without minimum speed cut OFF (DIP 2 =
|
OFF
|
= factory setting)
•
If no
“
n-min
”
is adjusted, the fan stops with
reaching the desired value.
•
If
“
n-min
”
is adjusted (e.g. 20 %), then no
disconnection of the fan takes place. I.e.
always a minimum ventilation is ensured (fan
does not go under setting
“
n-min
”
).
With minimum speed cut off (DIP 2 =
|
ON
|
)
•
When the setpoint is reached, the modula-
tion is reduced to
“
0 %
”
, or to the set value if
“
n-min
”
is speci
ed.
•
For actual value = setpoint disconnection
takes place from
“
n-min
”
to
“
0
”
. Hysteresis
(ON / OFF) approx. 2.5 % of 100 % set
value.
nM
50 %
100 %
I
Min.
Min. 35 %
Max. = 100 %
20 °C
S
7 K
R
27 °C
-2.0 K
10.05.2007
v_min_luft_abschalt.vsd
Minimum speed cut off (idealized principle diagram)
nM Motor speed
S Setpoint
R Pband
I Actual value
8 Start-up
8.1 Prerequisites for commissioning
Attention!
1. You must mount and connect the device in accordance with the operating instructions.
2. Check all connections for correctness once more.
3. The mains voltage must match the information on the rating plate.
4. The rated current on the rating plate will not be exceeded.
5. Make sure that no persons or objects are in the fan's hazardous area.
Operating Instructions
Acontrol
–
model series PKE-6 /-10 / PKE-14
Start-up
L-BAL-E042-GB 1002 Index002
Part.-No. 00163314-GB
14/26