O P E R AT I N G A N D I N STA L L AT I O N I N ST R U CT I O N S SYST E M V E N T E C H LG 5 0 0 P
PAG E 4 0
10.3.1 Cable inlets
Connection cables must be fed through
the cable glad on the top of the ventilation
unit in order to connect the cables for the
relevant control unit as well as optional
system components such as external
reheating or external sensors.
•
The cable glands are only suitable for
rounded cable and lines.
•
A separate cable inlet must be used for
each cable!
•
Unused cable inlets must be hermetical-
ly sealed!
•
All cable entries must be strain-relieved!
The operating unit is connected to the
ventilation unit control system by means
of the supplied Modbus cable. The „-X5“
Modbus RJ12 jack (see the switching
plan) on the control unit is provided in
order to connect the operating unit. On
the control unit itself, the Modbus cable
is plugged into the rear of the unit, in
the RJ12 port. Alternatively, the screw
glands on the control unit can also be
used to connect a Modbus cable. Please
refer to the appropriate connection
images and diagrams in sections 5.2.7
- 5.2.9.
When installing the control unit sepa-
rately, a standard telephone cable or
appropriately designed Modbus cable
up to a max. length of 50 m can be used.
We recommend the use of an AWG28/6C
ribbon cable (e.g. MFK6SW, MPFK6S) or
a LIYY 6x0, 14 mm² electronic line.
10.3.2 Connecting the operating unit
The control component of the ventilation
unit contains an „-X4“ RJ45 jack (see
switching plan) which is used to commu-
nicate with a TCP/IP network
.
10.3.3
Connection to Web server
(Optional!)
The ventilation unit is supplied ready to
plug in. The mains connection line is 1.5
m in length and fitted with a shock-proof
plug.
The mains connection must be correctly
set up using an appropriate shock-proof
plug on site.
Before working on the electri-
cal power unit, the equipment
must be isolated from mains
and protected against renewed
switch-on.
The ventilation unit may be
operated with the rated voltage
of 230 V / 50 Hz indicated on
the nameplate only. The fuse on
the line should be max. 16 A and be an
isolating type.
The supply pipe must be dimensioned by
an authorised electrician in full compli-
ance with the relevant guidelines.
Only pulse or AC/DC sensitive residual
current protective devices (type A or B)
are permitted.
10.3.4 Mains connection
