52 - EN
5.7 Connecting cabling and power supply
Power is supplied to each VM via the ComfoNet RJ45 cable.
There are two ComfoNet RJ45 sockets on each VM. These two ComfoNet RJ45 connections function
identically, so connection errors are excluded.
The complete connection of the volumetric flow control system can only take place if all controlling
components have been installed and terminate at the air volume controller location with a signal cable.
0-10 V
GND
NO
COM
NC
Fire
GND
12 Vdc
GND
0-10 V
BS
GND
12 Vdc
GND
0-10 V
12 Vdc
GND
0-10 V
12 Vdc
GND
0-10 V
C
AN_L
C
AN_H
GND
12 Vdc
C
AN_L
C
AN_H
GND
12 Vdc
24 Vdc
GND
FE
FE
RJ45
RJ45
Modbus
Ext
ernal
Modbus
Int
ernal
ComfoN
et
12 Vdc
GND
0-10 V
230 V
ac
RJ45
RJ45
RJ45
0-10 V
Output
S
yst
em
Err
or
Output
Fir
e
Safety
Input
Bathr
oom
Switch
Input
0-10 V Input (12 Vdc Supply, max 30 mA each)
Analog
Input
1
Analog
Input
2
Analog
Input
3
Analog
Input
4
Analog
Input
5
1
8
9
10
11
12
13
2
3
4
5
6
7
Pos.
Connection
1
0-10V output
2
System Error output
3
Fire Safety input
4
Pulse Switch / Bathroom Switch input
5
Modbus External
6
Modbus Internal
7
0-10V input (5x)
8
ComfoNet
9
ComfoNet
10
ComfoNet-RJ45 for the VMs
11
24 Volt DC SELV power supply
12
Functional Earth for the 24 Volt DC SELV also used
for Modbus
13
230 Volt AC power supply
Fig. 5.8 - Connections CM
AC
DC
FE FE
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