5.3
Inputs
The assignment of the inputs depends on the system code number and the control method
(–> section 4). Sensors that are required for the selected control methods are always acti-
vated. You must determined separately all the other sensors as well as the functions of the bi-
nary inputs by configuring them (–>section 2). Alternatively, you can also assign up to four
analog inputs (0 to 10 V) to some of the resistance sensors. The analog inputs are suitable
for active temperature, humidity and air quality sensors.
Functions
WE
Configuration
Assignment of inputs
AE1 to AE4
OFF
Fb18 = ON
AE_--: Not asssigned
AE1F1: Supply air temp. F1
AE3F2: Exhaust air temp. F2
AE2F3: Outdoor temperature F3
AE3F5: Room temperature F5
AE2F6: Supply air humidity F6
AE4F7: Exh. air/room humidity AE4L:
Air quality L
MIN:
Lower measuring range value
MAX: Upper measuring range value
5.4
Outputs
5.4.1 Heating coil
The heating coil is controlled from the control output Y1. The heating coil control is imple-
mented by a PID control algorithm with the adjustable parameters K
P
, T
N
and
T
V
. The operat-
ing action of the control output Y1 can be reversed. The default setting of the operating ac-
tion: heating capacity 0 to 100 % = 0 to 10 V.
An electric air heater can be controlled via the binary output BA5 subject to Y1 (–> sec-
tion 6.11.12).
44
EB 5477 EN
Control methods and system components
Y1
Fig. 14 · Output signal in Anl. 0
Control signal
Controlled variable
– System dev