SICK RFU62 Series

Conditions for specified enclosure rating
To maintain the specified enclosure rating of the device (IP67 or IP65) during operation,
the following requirements must be met. If these requirements are not met, the device
does not fulfill any specified enclosure rating.
•
All variants:
The side cover for the USB socket and the microSD card slot must be screwed
tight to the device. Recommended tightening torque for the cover screws: 60 Ncm
±5 Nm.
•
RFU62x-101xx and RFU62x-105xx (both IP67):
The cables plugged into the electrical M12 connections must be clamped. Unused
M12 connections must be fitted with screw-on protective caps (for male connec‐
tors) or plugs (for female connectors) as supplied.
•
RFU62x-104xx (serial variant, IP65):
When lengthening the connecting cable of the device: use a suitable seal between
the male connector and female connector of the D-Sub pin connectors on each of
the cables and screw the pin connectors together. You can find a suitable IP65
rubber seal online at: www.sick.com/RFU62x
•
The same also applies to the EMC requirement (ESD) according to CE.
NOTICE
The device can, if necessary, be operated for a short time without the side cover to per‐
form the following tasks:
•
Inserting or removing the optional memory card
•
Temporary use of the USB interface as a servicing interface
During this time, protect the device against moisture and dust.
6.1.2 Prerequisites for safe operation of the device
WARNING
Risk of injury and damage caused by electrical current!
As a result of equipotential bonding currents between the device and other grounded
devices in the system, faulty grounding of the device can give rise to the following dan‐
gers and faults:
■
Metal housings are vulnerable to dangerous currents.
■
Devices will behave incorrectly or be destroyed.
■
Cable shielding will be damaged by overheating and cause cable fires.
Remedial measures
■
Only skilled electricians should be permitted to carry out work on the electrical sys‐
tem.
■
If the cable insulation is damaged, disconnect the voltage supply immediately and
have the damage repaired.
■
Ensure that the ground potential is the same at all grounding points.
■
Where local conditions do not meet the requirements for a safe earthing method,
take appropriate measures (e.g., ensuring low-impedance and current-carrying
equipotential bonding).
The device is connected to the peripheral devices (voltage supply, any local trigger sen‐
sor(s), system controller) via shielded cables. The cable shield – for the data cable,
for example – rests against the metal housing of the device. The device can be
grounded through the cable shield or through a blind tapped hole in the housing,
for example.
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
35
Subject to change without notice