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.
b
Make sure that the following control and electrical requirements are met so the
safety laser scanner can fulfill its protective function.
•
It mus
t be possible to electrically influence the control of the machine.
•
Use the same earthing method for all devices that are electrically connected to the
safety laser scanner.
•
All earthing points must be connected with the same ground potential.
•
Voltage supply must be supplied in accordance with SELV/PELV (IEC 60204-1) for
all devices that are electrically connected to the safety laser scanner.
•
The control that is connected and all devices responsible for safety must comply
with the required performance level and the required category (for example
according to ISO 13849-1).
The safety laser scanner complies with the regulations for electromagnetic compatibility
(EMC) f
or the industrial sector (Radio Safety Class A).
4.4.1 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.
b
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. Details about toler‐
ances and further connected loads, see "Data sheet", page 159.
•
The power supply unit must provide safe isolation according to IEC 61140 (SELV/
PELV as per IEC 60204-1). Suitable power supply units are available as acces‐
sories from SICK, see "Connection technology", page 191.
•
Make sure that the safety laser scanner is provided with appropriate electrical
fuse protection. Electrical data for calculating what fuse is required, see "Data
sheet", page 159.
•
Use the same earthing method for all devices that are electrically connected to the
safety laser scanner.
•
Voltage supply must be supplied in accordance with SELV/PELV (IEC 60204-1) for
all devices that are electrically connected to the safety laser scanner.
4.4.2 USB connection
The safety laser scanner has a USB connection for configuration and diagnostics. The
U
SB 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 diagnos‐
tics. More information: see "Configuration", page 80 and see "Troubleshooting",
page 141.
PROJECT PLANNING 4
8020200/15ZT/2019-11-14 | SICK O P E R A T I N G I N S T R U C T I O N S | microScan3 – EtherNet/IP™
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Subject to change without notice