SICK nanoScan3

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All e
lectrically connected devices use the same earthing method.
•
All earthing points are connected with the same ground potential.
Further topics
•
"E
lectrical installation", page 57
4.4.1 Electromagnetic compatibility
Overview
S
afety components switch all safety outputs to the OFF state in the event of errors in
order to rule out potentially dangerous situations. For example, faulty data transmission
must lead to a shutdown for safety-related devices, even if it can be tolerated for
non-safety-related devices.
To avoid electromagnetic interference as much as possible, a consistent earthing
method is required for the entire system. In particular, the functional earth must be
connected using suitable conductors. Cables susceptible to interference and sources of
interference should be routed separately.
Electromagnetic interference depends on the environment in which the product is used.
The product is tested and certified according to common standards. It is therefore
reliable when used in industrial environments.
Shielded cables
F
or shielded cables, the shielding should be applied on both sides and over a large
area. Deviations are only permitted in exceptional and justified cases. Especially when
using motors or other inductive consumers, one-sided support of the shielding is not
sufficient because it does not act against inductive interferers.
Functional earth
T
he functional earth must be connected. The connection must be made in accordance
with the earthing method of the system.
Options for connecting the functional earth:
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4-pin plug connector for voltage supply: pin4
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M5 threaded holes on the housing
The functional earth must be connected with low inductance, i.e. with a sufficient wire
cross-section and the shortest possible length of cable.
4.4.2 Voltage supply
Prerequisites
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T
he power supply unit is able to jumper a brief power failure of 20ms as specified
in IEC60204-1.
•
The power supply unit provides safe isolation according to IEC61140 (SELV/PELV
as per IEC60204-1).
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The electrical power supply has an appropriate electrical fuse.
Further topics
•
"D
ata sheet", page 117
4.4.3 USB connection
The device has a USB connection for configuration and diagnostics. The USB connec‐
t
ion complies with the USB2.0 Micro-B standard (female connector). The USB connec‐
tion may only be used temporarily and only for configuration and diagnostics.
PROJECT PLANNING 4
8027909/2023-02-22 | SICK O P E R A T I N G I N S T R U C T I O N S | nanoScan3 – EtherNet/IP™
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Subject to change without notice