5
Electrical installation
5.1
Safety
WARNING
Personal injury due to improper supply voltage!
■
Only operate the device using safety extra-low voltage and safe electrical insula‐
tion as per protection class III.
NOTICE
Equipment damage or unpredictable operation due to working with live parts.
Working with live parts may result in unpredictable operation.
■
Only carry out wiring work when the power is off.
■
Only connect and disconnect electrical connections when the power is off.
5.2
Wiring instructions
NOTE
Pre-assembled cables can be found online at:
•
NOTICE
Faults during operation and device or system defects!
Incorrect wiring may result in operational faults and defects.
■
Follow the wiring notes precisely.
Recommendation: use shielded cables.
The electrical connection of the device is configured as an M12 round connector.
The enclosure rating stated in the technical data is achieved only with a screwed plug
connector or cover cap.
Shielding requirements
■
To ensure a fault-free data transmission, an effective and comprehensive shielding
solution must be implemented.
■
Apply a cable shield at each end, i.e. in the control cabinet and at the device. The
cable shield of the pre-assembled cables is connected to the knurled nut and thus
also to a large area of the device housing.
■
The cable shield in the control cabinet must be connected to a large area of the
signal ground.
■
Take appropriate measures to prevent equipotential bonding currents flowing
through the cable shield.
■
During installation, pay attention to the different cable groups. The cables are
grouped into the following four groups according to their sensitivity to interference
or radiated emissions:
°
Group 1: cables very sensitive to interference, such as analog measuring
cables
°
Group 2: cables sensitive to interference, such as device cables, communica‐
tion signals, bus signals
ELECTRICAL INSTALLATION
5
8017154/1AVV/2021-03-24 | SICK
O P E R A T I N G I N S T R U C T I O N S | DT50-2 Pro
13
Subject to change without notice