K2
21, 24, 22
K2 function
:
|
1
|
=
Heating 1
K2 Invert: OFF
K 3
31, 34, 32
K3 Function
:
|
4
|
=
Peak load ON/OFF
K3 Invert: OFF
Terminals
“
31
”
and
“
32
”
can be used to switch on the second fan.
Activation must be performed in
“
Installation
”
-
“
Ventilation
”
(Peak load).
Information
Max. contact load
Technical data and connection diagram.
Inverting the relay outputs and activatable antiblock
Installation menu -> IO Setup.
5.11
Communication
5.11.1
Networking via MODBUS
The device comes equipped with a RS-485 interface for networking via MODBUS. Conntection at:
“
A
(D+)
”
,
“
B (D-)
”
and
“
GND
”
.
A maximum of 32 network users can be connected to the data bus. One of these devices is the
Master
.
The Master always has the address 1(display of address in installation menu:- - - - -).
The address must be set in the
“
Bus
”
menu. The sensor for the supply air and the group fault must be
connected at the
“
Master
”
device!
5.11.2
RS-485 - network design and interface parameter
Please ensure the correct connection; i.e. "A (D+)" must always be connected to "A (D+)" of the next
devices. The same applies to "B (D-)" .
In addition, a "GND" connection must be established, as dissimilar potential (over 10 V!) will lead to
the destruction of the RS-485 interface (e.g. lightning).
general example for MODBUS device connection
The data line must be connected from one device to the next. No other type of wiring is allowed!
Always use only two wires of one lead (twisted pair) for the connection.
MODBUS
26.02.2007
v_modbus_verbindung.vsd
Example for MODBUS connection
Recommended wire types
1. CAT5 / CAT7 cables
2. J-Y (St) 2x2x0.6 (telephone cable)
3. AWG22 (2x2 twisted pair)
When using telephone cable with four cable cores, we recommend the following allocation:
“
A (D+)
”
= red,
“
B (D-)
”
= black,
“
GND
”
= white
Operating Instructions
Fcontrol
–
model series FTET4/6/10AHMQ-L
Electrical installation
L-BAL-E139-GB 2022/03 Index 006
Part.-No.
14/92
