4 Electrical installation
4.1 Safety
In addition to the information in the underlying operating instructions, please observe
t
he following points when installing the electrics for the safety light curtain.
DANGER
Ignit
ion Hazard
Failure to observe this information could result in a risk of ignition
►
Always switch the voltage supply off before disconnecting a connecting cable from
the device.
►
Ensure that all electrical connections to the device or to the connections are
protected.
►
The IP enclosure rating for the connections and therefore for the device is only
guaranteed if the connections are protected. Otherwise foreign objects can get
into the terminal compartment. This can cause an explosion the next time the
device is switched on.
►
Put in place measures for ensuring supply reliability and delivery dependability.
DANGER
Ris
k of ignition
Failure to observe this information could result in a risk of ignition.
►
If the device is used in an environment classified as tbIIIC, tcIIIB or tcIIIC, the
cover must not be removed, not even temporarily (e.g. for maintenance purposes).
DANGER
Risk of ignition or explosion
►
If you have to remove the cover when working on the safety light curtain, make
sure that the joints and o-ring are clean and undamaged before refitting the cover.
DANGER
Ris
k of ignition or explosion
►
Disconnect the power supply before opening the explosion-proof enclosure to
avoid igniting hazardous atmospheres.
►
Do not reconnect the power supply until you have completed the electrical installa‐
tion.
4 ELECTRICAL INSTALLATION
20
O P E R A T I N G I N S T R U C T I O N S | C4000 Advanced Ex 8017027/1DVD/2023-04-28 | SICK
Subject to change without notice
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