Depending On The Temperature Error; Connection Of The Expansion Board To The Pco; Expansion Board Digital Inputs - AERMEC KTU Manual De Instalación, Uso Y Mantenimiento

7.

DEPENDING ON THE TEMPERATURE ERROR

C
0.7
0.3
-10 25
C
0.9
0.5
-10 25
%U.R.
%rH
5
3
-10 25
8.

CONNECTION OF THE EXPANSION BOARD TO THE pCO

Type:
Connector:
Driver:
In the 485 version, the maximum distances allowed between expansion and pCO are those given in the following table:
With telephone cable
Resistance of the cable (Ω/m)
≤0.14
≤ 0.25
In the tLAN version, the maximum distance is equal to 10 m with shielded cable.
9.

EXPANSION BOARD DIGITAL INPUTS

4 optoisolated at 24 Vac 50...60 Hz or 24 Vdc (common
Number and type:
negative)
!
WARNINGS:
1 in compliance with the Standards
regarding electromagnetic
compatibility, use shielded cable
for the RS485 line, if the appliance is
installed in a domestic environment; 2
a 1.25 AT fuse must be installed in the
device power supply line; 3 use cable
20 KTU_5890967_00
Misura di temp (NTC res.), range -10T60 °C
60 C
Misura di Temperatura (NTC attivo), range -10T60 °C
60 C
Misura di Umidità, range 10...90 % U.R. -10T60 °C
60 C
asynchronous half duplex with 2 dedicated wires
extractable connector with 3-way screw
(version 485), 2 way (tLAN version)
CMR 7 V balanced differential (RS485), transition
driver (tLAN)
Maximum distance (m)
600
400
with max. length of. 30 m excluding
the power supply cable, the RS485
data transmission cable and the tLAN
connection cable; 4 where possible,
separate the probe signal cables and
of the digital inputs from the cables
relative to the inductive and power
With shielded cable AWG24
Resistance of the cable
(Ω/m)
≤0,078
Maximum distance (m)
600
charges, in order to prevent possible
electro-magnetic interference.
5 There is main isolation between the
digital input and the rest of the board.