•
Perform all connection work only at ambient temperatures above 0°C.
•
Electrical connections between the device and other devices may only be made
or separated in a voltage-free state. Otherwise, there is a risk of damaging the
devices.
•
All circuits connected to the device must be designed as ES1 circuits.
•
The wire cross-sections of the data cables and cables for digital inputs and digital
outputs must comply with the applicable national standards.
•
In the case of open end connecting cables, make sure that bare wire ends do not
touch. Risk of short-circuit when the supply voltage is switched on! Wires must be
properly insulated from each other. This also applies to unused wires.
NOTE
For additional instructions on operating the device at ambient temperatures below
0°C: see "Prerequisites", page 48
Supply voltage
•
Connect the device to the permissible supply voltage, see "Supply voltage",
page 51.
•
The wire cross-sections of the customer-supplied power supply cable must be
selected in accordance with the applicable national standards. In Germany,
observe the following standards: DIN VDE 0100, part 430 and DIN VDE 0298,
part 4 or DIN VDE 0891, part 1.
•
Only switch on the supply voltage to the device or optional connection module or
fieldbus module depending on the type after first:
°
Completing the connection work
°
Carefully checking the wiring work
Data cables
NOTE
Layout of data cables
•
Use shielded data cables with twisted-pair wires.
•
The allowed cable length between the device and host computer depends on:
°
The chosen physical version of the host interface
°
The data transmission rate set in the device
For further information, see "Wiring data interfaces", page 53.
•
Implement the shielding design correctly and completely.
•
To avoid interference, always use EMC-compliant cables and layouts. This applies,
for example, to cables for switched-mode power supplies, motors, clocked drives,
and contactors.
•
Do not lay cables in parallel with voltage supply cables or motor cables in cable
channels over longer distances.
Antenna connection cables (optional accessory)
RFU630
ELECTRICAL INSTALLATION 6
8027750//2022-12-15 | SICK O P E R A T I N G I N S T R U C T I O N S | RFU63x
39
Subject to change without notice
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