Technical Information
Chapter
4
RFU63x
Electrical installation
8014335/YUO7/2016-04-04
©
SICK AG · Germany · All rights reserved · Subject to change without notice
27
4
Electrical installation
4.1
Notes on the electrical installation
The electrical installation must only be performed by electrically qualified persons.
Standard safety requirements must be met when working in electrical systems.
Electrical connections between the RFU630 and other devices may only be connected
or disconnected when the system is not live, otherwise the devices may be damaged.
The permissible ambient temperature range for this work is 0 °C to +50 °C.
RFU630-13101 (UL-certified):
– UL certified only if UL logo is printed on type plate.
– Install the device only inside of buildings. The device is not suitable for outdoor use.
– Lead the connection cables to the external device interfaces only inside of buildings.
– Use a supply voltage according to SELV (EN 60950-1:2006-04) and LPS (EN 60950-
1:2006-04) or Class 2 (UL 1310).
Operation of the RFU630 below 0 °C:
For information on configuring the electrical installation when using the RFU630-101xx
at temperatures down to –25 °C, see
.
When using connecting or extension cables with an open end, make sure that bare wire
ends are not touching (risk of short-circuit when the supply voltage is switched on).
Take appropriate measures to isolate the wires.
Customer-specific provided cables:
Wire cross sections of the supply cable from the customer's power system as well of
data and switching signal cables should be designed in accordance with the applicable
standards.
All circuits connected to the RFU630 must be designed as SELV circuits. The power sup-
ply or power supply unit must satisfy the requirements of SELV in accordance with the
currently applicable EN 60950-1. (SELV =
S
afety
E
xtra
L
ow
V
oltage.)
Do not switch on the supply voltage for the RFU630 respectively the CDB650-204 or
CDM420-0006 connection module until the connection work has been completed and
the wiring work has been tested thoroughly.
Prerequisites for enclosure rating IP 65
The cover for the USB female connector and Micro SD card slot has to be screwed onto
the housing during normal operation.
Protect the RFU63x from moisture and dust when the cover is open.
The electrical connections not used have to be fitted with protective caps or plugs.
The same also applies for the EMC requirements (ESD) according to CE.
Cable lengths
The possible length of cable between RFU630 and the host computer depends on the
selected physical design of the host interface and the set data transmission rate. For the
serial interfaces, see
Chapter 4.7.3 Wiring the data interface, Page 47
.