Pilz PSSu E S 2AI RTD - Manual (Page 26)

Wiring
Operating Manual PSSu E S 2AI RTD(­T)
22017­EN­06 26
6 Wiring
6.1 General wiring guidelines
Please note:
} The supply voltages for actuators and sensors must be extra low voltages with protect­
ive electrical separation (PELV or SELV) in accordance with VDE 0100, Part 410. Fail­
ure to do so could result in electric shock.
} We recommend that you use shielded signal lines.
} On base modules with C­rail:
– Connect the shield to the terminals on the C­rail.
– Connect the C­rail with low impedance to the functional earth.
} On base modules without C­rail:
– Connect the shield as shown in the terminal configuration section.
The module connects the shield to the mounting rail.
– Connect the mounting rail to the functional earth via an earthing terminal.
} In environments with strong EMC interference, base modules without a C­rail provide
better protection if the shield is connected.
} Use copper wiring.
} The terminal configuration as stated on the front plate applies for base modules with C­
rail. The terminal configuration as stated in the technical documentation applies for all
other base modules.
6.1.1 Mechanical connection of the base modules
Procedure:
} Use a flat blade screwdriver (DIN 5264­A)!
DIN 5264-A
} Strip the wire back 8 mm.
} If necessary, label the connection level with a colour marker [3].
} Base module with screw terminals:
– Use a screwdriver to loosen the screw on the screw terminal [1]
– Insert the stripped cable into the round fixing hole [2], as far as it will go.
– Tighten up the screw on the screw terminal.