Electrical Connection; Wiring Upon Delivery - Vent-Axia MX 10/10 Instructions For Use Manual

8. Electrical connection

8.1 Controls connection strip
The connection strip of the controls is shown below.
sensor connection
PE 1
18 V E
RS
L N
A
Power supply
230V, 50Hz
PC/Control Unit connection
• 0 –10 V controls input: for regulation of the speed of the MX
using low voltage switches.
• Release contact: the current at this contact must be 10- 250 volt
(AC or DC). When there is no current at the release contact, the
fan will not work, even if there is 230 V power supply.
• Malfunction contacts: There is a make and break contact. In case
of a malfunction, the contact between the two KL3A connectors is
closed and between the two KL3B connectors is opened. The
reverse situation occurs when there is 'no malfunction'.
• Communication connection: for adjustment and reading of the
MX using the VU Control Unit or the laptop/PC. The contact is
double: one A/B connection is connected to a sub-D9 connector
in the frame, one A/B connector is free and can be used for
looping when the MX is included in a network.
10
0-10 V controls input
Failure contact
make
KL2B
KL3B
GND GND
U3 10 V E Ö
U3
ist soll
RS RS RS GND
An S
B A B U3
KL2A
KL3A
nd
2 PC/Control Unit
Failure contact
connection
break
®
KL5A
+15V
+15V TW
G
U4 U4 PTC
H1 H2 H3
G EN EN
KL4
KL5B
release contact

8.2 Wiring upon delivery

The MX standard
There are three links on the controls connection strip. One or more
links may need to be removed in order to connect up control
equipment. Refer to the applicable diagrams in chapter 8.4.
• LUS1 is used to connect the +10V to the first connector of the
release contact.
• LUS2 is used to connect the GND to the second connector of the
release contact.
• LUS3 is used to connect the +10V to the E
controls input.
LUS1 and LUS2 provide current for the release contact. Via LUS3,
there is 10V on the E of the 0-10 controls input. The fan will
soll
therefore operate at maximum capacity following connection.
To WS
KL2B
PE 1
GND
18 V E U3 10 V E
ist
RS
RS RS RS
L N
A B A B
KL2A
PC/Control Unit connection
PE2
GND
GND
U4 U4
U V W
KL6
Motor
of the 0-10V
soll
lus 2
KL3B
GND
Ö G
soll U3
lus 3
GND
An S G EN EN
U3
KL4
KL3A
lus 1