
15
2110182-10-02/20 (Translation of the original operating instructions)
Operating Instructions
Non-Contact Safety Switch CES-A-C5H-EX
EN
Important!
Ì
If the device does not appear to function when operating voltage is applied (e.g. green STATE LED
does not illuminate or flash), the safety switch must be returned unopened to the manufacturer.
Ì
The device is fully encapsulated, it is therefore not possible to remove the lid from the housing.
10.1. Notes about
Wichtig!
Ì
This device is intended to be used with a
Class 2 power source
in accordance with UL1310.
As an alternative a LV/C (Limited Voltage/Current) power source with the following properties can
be used:
- This device shall be used with a suitable isolating source in conjunction with a fuse in accordance
with UL248. The fuse shall be rated max. 3.3 A and be installed in the max. 30 V DC power supply
to the device in order to limit the available current to comply with the
requirements. Please note
possibly lower connection ratings for your device (refer to the technical data).
Ì
For use and application as per the requirements of
1)
a connecting cable listed under the UL
category code CYJV2 or CYJV must be used.
1) Note on the scope of the UL approval: the devices have been tested as per the requirements of UL508 and CSA/ C22.2 no. 14 (protection against electric shock
and fire).
10.2. Safety in case of faults
Ì
The operating voltage U
B
is reverse polarity protected.
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The contacts LA/LB and -LA/-LB are short circuit-proof, but they are not reverse polarity protected.
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A short circuit between LA and LB can be detected only by external pulsing.
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A short circuit in the cable can be excluded by laying the cable with protection.
10.3. Requirements for connecting cables
CAUTION
Danger of explosion or malfunctions as a result of incorrect connection cables.
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For connecting cables, the requirements in the following table apply. EUCHNER provides no war-
ranty for safe function in case of failure to comply with these requirements.
Ì
The device meets the necessary EMC regulations even with an unscreened connecting cable. For applications that are
particularly sensitive to interference, a screened cable can be connected to the screen bonding clamp. The screen
bonding clamp is to be connected electrically to the grounding terminal via the protective plate. The shield at the open
end of the cable must also be connected electrically to the machine ground.
Ì
On the usage of a screened cable connected at both ends, it must be ensured that both ends are connected to a com-
mon earthing (and equipotential bonding) system according to EN 620079-14. If necessary, an equipotential bonding
cable must be laid.