Beckhoff EL1258, Документация

Страница: 40 / 311

Mounting and wiring
EL125x, EL2258 40 Version: 2.5
See the following table for the suitable wire size width.
Terminal housing ELxxxx, KLxxxx ESxxxx, KSxxxx
Wire size width (single core wires) 0.08 ... 2.5 mm
2
0.08 ... 2.5 mm
2
Wire size width (fine-wire conductors) 0.08 ... 2.5 mm
2
0,08 ... 2.5 mm
2
Wire size width (conductors with a wire end sleeve) 0.14 ... 1.5 mm
2
0.14 ... 1.5 mm
2
Wire stripping length 8 ... 9 mm 9 ... 10 mm
High Density Terminals ( HD Terminals [
}
38] ) with 16 terminal points
The conductors of the HD Terminals are connected without tools for single-wire conductors using the direct
plug-in technique, i.e. after stripping the wire is simply plugged into the terminal point. The cables are
released, as usual, using the contact release with the aid of a screwdriver. See the following table for the
suitable wire size width.
Terminal housing High Density Housing
Wire size width (single core wires) 0.08 ... 1.5 mm
2
Wire size width (fine-wire conductors) 0.25 ... 1.5 mm
2
Wire size width (conductors with a wire end sleeve) 0.14 ... 0.75 mm
2
Wire size width (ultrasonically “bonded" conductors) only 1.5 mm
2
Wire stripping length 8 ... 9 mm
5.4.3 Shielding
Note
Shielding
Encoder, analog sensors and actors should always be connected with shielded, twisted
paired wires.
5.5 Installation positions
Attention
Constraints regarding installation position and operating temperature range
Please refer to the technical data for a terminal to ascertain whether any restrictions re-
garding the installation position and/or the operating temperature range have been speci-
fied. When installing high power dissipation terminals ensure that an adequate spacing is
maintained between other components above and below the terminal in order to guarantee
adequate ventilation!
Optimum installation position (standard)
The optimum installation position requires the mounting rail to be installed horizontally and the connection
surfaces of the EL/KL terminals to face forward (see Fig.
“Recommended distances for standard installation
position” ). The terminals are ventilated from below, which enables optimum cooling of the electronics through
convection. "From below" is relative to the acceleration of gravity.