SICK RFU62 Series

NOTE
Wiring the signals without a SICK connection module
b
When using a customer-specific connection unit, refer to the relevant connection
diagrams and descriptions for the basic methods for wiring the signals.
•
see "Connecting the supply voltage", page 55
•
see "Wiring data interfaces", page 58
•
see "Wiring the CAN interface", page 60
•
see "Wiring the digital switching inputs (RFU62x-101xx/RFU62x-104xx)",
page 61
•
see "Wiring the digital switching outputs (RFU62x-101xx/RFU62x-104xx)",
page 63
•
RFU62x-101xx (Ethernet variant):
If the 15-pin D-Sub-HD male connector of the adapter cable cannot be used, an
alternative adapter cable (female connector, M12, 17-pin, A-coded/open end) is
available.
•
RFU62x-104xx (serial variant):
If the 15-pin D-Sub-HD male connector cannot be used, an alternative adapter
cable (female connector, D-Sub-HD, 15-pin/open end) is available.
Also see on Internet at:
•
www.sick.com/RFU62x
6.7 Connecting the supply voltage
6.7.1 Note on the reverse voltage protection for the supply voltage of the device
NOTICE
Risk of damage to the device due to possible short-circuit!
Reversing the polarity of the supply voltage may, under certain circumstances, damage
the device due to short circuit currents!
The supply voltage input terminal of the RFID device has been designed to provide
reverse polarity protection by means of an internal circuit protection (blocking diode) on
the positive pole (see figure).
The internal ground corresponds to the negative pole of the supply voltage for the
device. It has a direct galvanic connection to the metal housing of the device for RF-
related technical reasons.
Depending on the mounting location of the RFID device and the reference potential of
the supply voltage, a reversal of the polarity of the applied supply voltage can lead to
the following two situations:
ELECTRICAL INSTALLATION 6
8015930/ZTM0/2018-11-06 | SICK O P E R A T I N G I N S T R U C T I O N S | RFU62x
55
Subject to change without notice