User manual

7 Installation
WARNING
Explosion risk!
During assembly work, sparks can form and
surfaces may become excessively hot.
▶ Before assembly, make sure that there is
not a potentially explosive atmosphere!
▶ For applications in potentially explosive
atmospheres, observe the installation and
construction requirements of EN60079-
15 and/or country-specific regulations.
WARNING
Dangerous contact voltage!
▶ Carry out assembly and wiring work on
the u-remote station only when the power
supply is disconnected.
▶ Make sure that the place of installation
(switch cabinet etc.) has been discon-
nected from the power supply!
7.1 Preparationsforassembly
The u-remote station is designed for installation in switch
cabinets, terminals or switch boxes in decentralised systems.
The eld-bus coupler and I/O modules conform to protection
class IP20.
Environmental conditions
Make sure that the permitted environmental conditions for
installation and operation are observed (see the General
Technical Data in Sections 3.2 and 3.4).
DIN rail
The u-remote system products are intended for installation
on a DIN rail in accordance with EN 60715 (35 × 7.5mm),
steel strip in accordance with Annex A of EN 60715, or tin-
plated steel strip. The DIN rail must be mounted prior to the
installation of the u-remote station.
The DIN rail must be attached to the surface at least every
20cm to protect it from vibration and impact.
If the DIN rail is installed on earthed mounting plates, it does
not have to be separately earthed.
Strippinglengths
The required stripping length for every Weidmüller product
is specied in mm. These lengths, e.g. 6mm ±0.5mm, ≥
10mm ±1mm, must be observed. This also applies to the
use of wire-end ferrules. The external dimensions of the
crimped wire-end ferrules must conform with IEC-60947-1.
For detailed information see section 7.5.
Unpackingthedelivery
All of the elements that make up the u-remote station are
packaged individually for delivery.
▶ Please check the delivery for completeness and transport
damage.
▶ Please report any transport damage immediately to the
respective transport company.
ATTENTION
The product can be destroyed by elec-
trostatic discharge!
The components in the u-remote series can
be destroyed by electrostatic discharge.
▶ Please make sure that personnel and work
equipment are adequately earthed!
▶ Unpack all parts and sort the modules into the installation
sequence as per the instructions.
▶ Dispose of all packaging in accordance with the local dis-
posal guidelines. The cardboard packaging from the mod-
ules and fieldbus couplers can be sent for paper recy-
cling.
Installation | Preparations for assembly
233Manual u-remote1432790000/03/02.2014