4
Grounding point 3
5
Insulated mounting
6
Grounding point 2
7
Ground potential difference
8
Grounding point 1
9
Metal housing
ß
Shielded electrical cable
Even in the event of large differences in the ground potential, ground loops are effec‐
tively prevented. As a result, equalizing currents can no longer flow via the cable shields
and metal housing.
NOTICE
The voltage supply for the device and the connected peripheral devices must also guar‐
antee the required level of insulation.
Under certain circumstances, a tangible potential can develop between the insulated
metal housings and the local ground potential.
6.2 Wiring instructions
NOTICE
Faults due to incorrect wiring!
Incorrect wiring may result in operational faults.
•
Follow the wiring instructions closely.
Pre-assembled cables
NOTE
Pre-assembled cables can be found online at: www.sick.com/RFU62x
Pre-assembled cables with open cable end at one end
NOTE
For information on the pin, signal and wire color assignments for the RFU62x, see "Sig‐
nal assignment of cables with open cable end at one end", page 88 in the appendix.
6.3 Overview of all interfaces and connection options
NOTE
The USB interface of the device is used in industrial environments only as a service
interface for temporary use (e.g. for configuration, troubleshooting). Permanent use in
real operation of the system as a host interface is not intended.
6.3.1 RFU62x-101xx (Ethernet variant)
Service mode
The following device functions, among others, can be executed by the user via one of
the five data interfaces (Aux 1, Aux 2, Aux 3, Host 1 or Host 2):
•
Configuration
•
Read result display (detected transponder)
6 ELECTRICAL INSTALLATION
38
O P E R A T I N G I N S T R U C T I O N S | RFU62x 8015930/ZTM0/2018-11-06 | SICK
Subject to change without notice
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