Operating Instructions Chapter 5
UE403
8010854/WP71/2012-11-28 © SICK AG • Industrial Safety Systems • Germany • All rights reserved 17
Subject to change without notice
Electrical installation
5 Electrical installation
W
ARNING
Switch the power supply off!
The machine/system could inadvertently start up while you are connecting the devices.
Ensure that the entire machine/system is disconnected during the electrical
installation.
• The UE403 switching amplifier meets the interference suppression requirements (EMC)
for industrial use (interference suppression class A). When used in residential areas it
can cause interference.
• The UE403 switching amplifier is connected directly to the M4000 Advanced multiple
light beam safety device and supplied with power from the M4000. Pay attention to the
related notes on the voltage supply in the operating instructions for the
M4000 Advanced.
• In principle, it is permitted to make all connections only when the power supply is
switched off. The configuration connection however, may be connected/disconnected
with the system on line.
• Always protect unused connections by using the protective caps which are included in
the delivery. The protective caps also are available as an accessory (see chapter 11.2
“Accessories” on page 36).
Lay all cables for the input and output signals as per the required category as per
EN 954>1 (e.g. protected installation):
• A separate plastic-sheathed cable must be used for each M12 connection.
• It must be ensured using the equipotential bonding (pin FE) that cross-circuits between
normally isolated and independent components cannot cause a hazardous failure.
WARNING
Test the connections after any work has been carried out on the UE403 switching
amplifier!
Because the switching amplifier has several connections of a similar structural nature,
these may result in incorrect cut-off paths, for example if connection plugs are confused.
Mark all connecting wires and connection plugs unambiguously to avoid confusion.
Test the connections again after any maintenance or other activities have been carried
out on the UE403 switching amplifier.
Notes
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