Beckhoff ELX3351, Руководство по эксплуатации

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Mounting and wiring
ELX3351 14 Version: 1.3.1
3 Mounting and wiring
3.1 Special conditions of use for ELX terminals
WARNING
Observe the special conditions of use for the intended use of Beckhoff ELX
terminals in potentially explosive areas (ATEX directive 2014/34/EU)!
• The certified components are to be installed in a suitable housing that guarantees an
ingress protection of at least IP54 in accordance with EN 60079-0 and EN 60529! The
prescribed environmental conditions during installation, operation and maintenance are
thereby to be taken into account! Inside the housing, pollution degree 1 and 2 are per-
missible.
• If the temperatures during rated operation are higher than 70°C at the feed-in points of
cables, lines or pipes, or higher than 80°C at the wire branching points, then cables
must be selected whose temperature data correspond to the actual measured tempera-
ture values!
• Observe the permissible ambient temperature range of -25 to +60°C of Beckhoff ELX
terminals!
• Measures must be taken to protect against the rated operating voltage being exceeded
by more than 40% due to short-term interference voltages! The power supply of the
ELX9560 power supply terminal must correspond to overvoltage category II according
to EN 60664-1
• The individual terminals may only be unplugged or removed from the bus terminal sys-
tem if all supply voltages have been switched off or if a non-explosive atmosphere is
ensured!
• The connections of the ELX9560 power supply terminal may only be connected or dis-
connected if all supply voltages have been switched off or if a non-explosive atmos-
phere is ensured!
• The fuses of the EL92xx power feed terminals may only be exchanged if all supply volt-
ages have been switched off or if a non-explosive atmosphere is ensured!
• Address selectors and switches may only be adjusted if all supply voltages have been
switched off or if a non-explosive atmosphere is ensured!
3.2 Installation notes for ELX terminals
Attention
Storage, transport and mounting
• Transport and storage are permitted only in the original packaging!
• Store in a dry place, free from vibrations.
• A brand new ELX terminal with a certified build version is delivered only in a sealed car-
ton. Therefore, check that the carton and all seals are intact before unpacking.
• Do not use the ELX terminal if
- its packaging is damaged
- the terminal is visibly damaged or
- you cannot be sure of the origin of the terminal.
• ELX terminals with a damaged packaging seal are regarded as used.
WARNING
Observe the accident prevention regulations
During mounting, commissioning, operation and maintenance, adhere to the safety regula-
tions, accident prevention regulations and general technical rules applicable to your de-
vices, machines and plants.