7 Electrical installation
7.1 Conditions for specified enclosure rating
To ensure compliance with the IP65 and IP67 enclosure rating of the device during
operation, the following requirements must be met:
•
The cables plugged into the electrical M12 connections must be screwed tight.
•
The optics protective hood must be screwed tightly onto the device.
•
Any electrical M12 connections that are not being used must be sealed with
protective plugs that are screwed tight (as in the delivery condition).
7.2 Wiring instructions
NOTE
Pre-assembled cables can be found online at:
•
www.sick.com/Ranger3
NOTICE
Faults during operation and device or system defects!
Incorrect wiring may result in operational faults and defects.
■
Follow the wiring notes precisely.
Observe the following safety measures:
•
Standard safety requirements must be met when working in electrical systems.
•
Only connect and disconnect electrical connections when there is no power to the
system. Otherwise, the devices may be damaged.
•
Use only shielded cables. The shield has to be terminated at both ends of the
cable.
•
Ensure that loose cable ends are isolated.
•
Connect unused pins to GND.
•
Wire cross sections of the supply cable from the customer's power system should
be designed and protected in accordance with the applicable standards.
•
Make sure that the Power-I/O cable is protected by a separate slow-blow fuse with
a maximum rating of 2.0 A. This fuse must be located at the start of the supply
circuit.
•
The 24 V voltage supply must meet the requirements of SELV+LPS relating to "UL/
EN60950-1:2014-08", or ES1 according to "EN/UL62368", or "CAN/CSA-C22.2
No 223-M91(R2008)-Power supplies with Extra-Low-Voltage class 2 outputs", or
"UL1310 (6th Edition)-standard for class 2 power units".
•
All circuits connected to the device must be designed as ES1 circuits (according
to EN/UL62368) or as SELV (Safety Extra Low Voltage) circuits (according to EN/
UL60950).
•
Connect the connecting cables in a de-energized state. Switch on the supply
voltage only after complete installation/connection of all connecting cables to the
device and control system.
7
ELECTRICAL INSTALLATION
22
O P E R A T I N G I N S T R U C T I O N S | Ranger3 8020774/1D7Q/2022-03 | SICK
Subject to change without notice