Pilz PNOZ Seies Configuration Manual page 22

Basics
Electrical installation
General requirements
General requirements Electrical installation Basics 2006-02 1.3 General requirements PNOZmulti zusammengestellte Texte
EMC
The PNOZmulti is designed for use
in an industrial environment. It is not
suitable for use in a domestic envi-
ronment, as this can lead to inter-
ference.
To comply with EMC requirements,
1.3
the DIN rail must have a low imped-
ance connection to the control cab-
inet housing.
Supply voltage
Power for the safety system and in-
put circuits must always be provid-
ed from a single power supply. The
power supply must meet the regu-
lations for extra low voltages with
safe separation (SELV, PELV).
Two connection terminals are avail-
able for each of the supply connec-
tions 24 V and 0 V (semiconductor
outputs), plus A1 and A2 (power
supply). This means that the supply
voltage can be looped through sev-
eral connections. The current at
each terminal may not exceed 9 A.
Cables
Do not route the test pulse lines to-
gether with actuator cables within
an unprotected multicore cable.
Use copper wiring that can with-
stand temperatures of 60/75°C.
Terminals
The plug-in terminals for the inputs
and outputs are not supplied with
the system. You can select be-
tween a cage clamp connection or
a screw connection.
The plug-in connection terminals
on the relay outputs carry mains
voltage and should only be con-
nected and disconnected when the
voltage is switched off.
Pilz GmbH & Co. KG, Sichere Automation, Felix-Wankel-Straße 2, 73760 Ostfildern, Germany
1.3-2
Telephone: +49 711 3409-0, Telefax: +49 711 3409-133, E-Mail: pilz.gmbh@pilz.de
ESD
Electrostatic discharge can damage
components. Ensure against dis-
charge before touching the units, e.g.
by touching an earthed, conductive
surface or by wearing an earthed arm-
band.
2006-02