SICK EtherNet/IP microScan3 - Voltage Supply; USB Connection; Control Inputs

Complementary information
F
or more information, see the “Background knowledge on EMC” technical information
(part number 8027030).
4.4.2 Voltage supply
DANGER
H
azard due to lack of effectiveness of the protective device
In the case of non-compliance, it is possible that the dangerous state of the machine
may not be stopped or not stopped in a timely manner.
►
Make sure that the following control and electrical requirements are met so the
safety laser scanner can fulfill its protective function.
•
T
he power supply unit must be able to jumper a brief power failure of 20ms as
specified in IEC60204-1.
•
The safety laser scanner requires a supply voltage of 24V. For details about
tolerances and further connected loads, see "Data sheet", page 171.
•
The power supply unit must provide safe isolation according to IEC61140 (SELV/
PELV as per IEC60204-1).
13)
•
Make sure that the safety laser scanner is provided with an appropriate electrical
fuse protection. Electrical data for calculating what fuse is required, see "Data
sheet", page 171.
•
Use the same earthing method for all devices that are electrically connected to the
safety laser scanner.
•
Voltage must be supplied in accordance with SELV/PELV (IEC60204-1) for all
devices that are electrically connected to the safety laser scanner.
4.4.3 USB connection
The safety laser scanner has a USB connection for configuration and diagnostics.
T
he USB connection complies with the USB 2.0 mini-B standard (female connector).
The USB connection may only be used temporarily and only for configuration and diag‐
nostics. More information: see "Configuration", page 88 and see "Troubleshooting",
page 155.
4.4.4 Control inputs
Overview
T
he safety laser scanner can receive signals for monitoring case switching via the
network:
•
Depending on the assembly used, the monitoring case is switched in different
ways, see "Assemblies", page 72.
When switching between monitoring cases, bear in mind that a person may already be
in the protective field when switching takes place. So, you must make sure that the
monitoring case is switched at the right time. Only switching in time (namely before the
danger arises for the person at this location) ensures protection, see "Monitoring case
switching time", page 32.
4.4.4.1 Static control inputs
Overview
T
he static control inputs support the following evaluation methods:
•
Complementary analysis
•
1-of-n-evaluation
13)
T
he voltage supply according to SELV has proven to be more reliable in demanding environments.
4 P
ROJECT PLANNING
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O P E R A T I N G I N S T R U C T I O N S | microScan3 – EtherNet/IP™ 8020200/1NTM/2024-06-03 | SICK
Subject to change without notice