Dungs MPA 5111 User Manual

25 … 68
24 … 68
Printed in Germany • Edition 02.14 • Nr. 254 722
8 Parameters
8.2 P2x Fan
Parameter
P2x
Designation Description Setting
P22 Fan: KP factor a) For fan control:
This factor is only relevant if the fan
is controlled!
b) For fan regulation:
The Kp factor denes the eect of
the dierence between nominal
value and actual value on the regu-
lating value.
Kp is no proportional factor:
• small Kp values result in a slow
adaptation to the nominal value.
• big Kp values result in a fast regu-
lation, but can also create an over-
shooting
Always observe the interaction be-
tween the P and I part, that means
that a separate consideration of Kp
and Tn is not possible!
P23 Fan: TN factor a) For fan control:
This factor is only relevant if the fan
is controlled!
b) For fan regulation:
The Tn factor denes the eect of
the history, that means the accu-
mulated dierence between the
nominal and the actual value (inte-
gration), to the regulating value.
Tn is a division factor:
• small Tn values result in a fast but
more instable regulation. Reso-
nance and swinging-up systems
are the possible eects of wrong
values.
• big Tn factors stabilise the sys-
tem.
Always observe the interaction be-
tween the P and I part, that means
that a separateconsideration of Kp
and Tn is not possible!
P24 Fan: Pulses per rota-
tion
a) For fan control:
This value is only relevant if the
fan speed is to be recorded! The
recording has no inuence on the
behaviour of the MPA.
b) For fan regulation:
The number of impulses per rota-
tion provided by the fan must be set
here.
If an incorrect value is indicated,
the determined speed is incorrectly
calculated.

Dungs MPA 5111 Specifications

General

Brand	Dungs
Model	MPA 5111
Category	Control Unit
Language	English