sauter ASV115, Product Data Sheet

Page: 9 / 13

ASV115
Block diagram
MM
P
E
rq
V
dp
first
priority
command
switch
logic
cq
V
.p
.1
M
dp-
S
en
s
or
first priority
reference variable
generator
D
A
second
priority
command
switch
second priority
reference variable
generator
-
+
-eqV.s
cq
V
.s
-
+
+
cqV.p.ad -eqV.s
D
A
D
A
VAV
controller
AO
03
AI 01
AI/
A
O
02 DI 04 DI 05
BUS
controller
EIA-485
D+
C
D-
MM
LS
24V
+
MM
B1
17
07
C
A
1051
9
OG
or
Wiring diagram
BU BN RD BK GY VT WH OG PK YE GN
Blau Braun Rot Schwarz Grau Violett Weiss Orange Rosa Gelb Grün
Blue Brown Red Black Grey Violet White Orange Pink Yellow Green
Bleu Brun Rouge Noir Gris Violet Blanc Orange Rose Jaune Vert
Application examples
Example 1: VAV (Master-Master)
Variable air volume control with supply- and exhaust-air controller in
master–master configuration, commanded by a room temperature
controller for rooms with high comfort and control requirements.
With the master–master configuration, supply- and exhaust-air
controllers (1) are controlled in parallel by a common command
signal from a room temperature controller (2) as standard. Taking
into account the logical statuses, the command signal shifts the
parameterised air volume values in the range from
min
to
max
.
With the same setting for these limitations and for the nominal air
volume for the installation
nom
(i.e. the parameterised values on
the supply- and exhaust-air controllers must be the same), a set-
point shift enables a parallel shift of the air volumes. Therefore, the
room pressure remains constant, even with variable air volume
(compensated). If the
nom
,
min
and
max
values on the supply-
and exhaust-air sides are parameterised differently, no defined
negative pressure or positive pressure can be achieved in the room;
it is dependent on the prevailing air volume.

Setting for room positive pressure =
supply

exhaust

Setting for room negative pressure =
supply

exhaust
For priority control, the digital inputs on the supply- and exhaust-air
controllers are activated in parallel via switching contacts. The
desired parameters for
min
,
max
and
mid
are set using software.
This method of operation is also suitable for constant air volume
control, and this function, too, is implemented by a constant com-
mand signal at the setpoint input.
www.sauter-controls.com 9/13