Trox Technik TROX UNIVERSAL, Инструкция по установке и эксплуатации, Страница: 23 / 36

7 Wiring
Safety instructions
Personnel:

Skilled qualified electrician
DANGER!
Danger of death due to electric current!
Danger of electric shock! Do not touch any live
components!
– Switch off the supply voltage and secure it
against being switched on accidentally
before working on the unit.
– Ensure that no voltage is present.
– Work on the electrical system must only be
carried out by skilled qualified electricians.
CAUTION!
Risk of damage to the controller
For wiring please note:
– Do not connect the 24 V supply if the EM-
TRF or EM-TRF-USV expansion module has
been installed.
– Do not connect 230 V and 24 V supply vol-
tages at the same time.
– Do not connect Terminals 1 + 2 with
Comm 1 + 2.
– Never connect 24 V AC and 24 V DC supply
voltage at the same time.
– Never connect the PC or Comm 1 + 2 to the
connection (Fig. 4/18 - Terminal 3).
Notes on wiring
Use only cables that are designed for the supply
voltage for which they will be used. The length and
cross section as well as any contact resistance may
increase voltage losses. The power rating of each
unit must also be considered. A skilled qualified
electrician has to select the correct cable types and
sizes. This job must only be carried out by specialist
electrical companies.
 For the electrical connection comply with any
applicable regulations and follow the code of
good practice. Be sure to comply with the
applicable guidelines for working on electrical
and electronic equipment as well as with any
applicabe local regulations.
 The connection data can be found on the
rating plate or in the wiring diagrams.
 Protect any connecting cables from physical
damage.
 Feed cables through the cable glands on the
controller casing.
 Ensure that the device can be de-energised
(all phases) for maintenance so that no voltage
is present. This requires separators (e.g. fuses
or RCBOs) near the controller; the contact gap
should be at least 3 mm.
Additional information on wiring
See the following wiring documents:

Wiring example,
Ä
31

List of terminal connections, Ä 36

General wiring instructions TROX UNIVERSAL
(separate document)

Project-specific wiring documents, if any
Limited voltage supply
With a supply voltage of 24 V AC/DC, a maximum
of 5 electronic controllers may be connected
through the double terminals to limit the currents on
the circuit board and the terminals.
Wiring
Control components for VAV terminal units TROX UNIVERSAL 23