9
2120545-05-08/18 (translation of the original operating instructions)
Operating Instructions
Non-Contact Safety Switch CES-I-AS2A-M-C04
EN
8. Electrical connection
CAUTION
Risk of damage to equipment or malfunctions as a result of incorrect connection.
Ì
Power devices which are a powerful source of interference must be installed in a separate location
away from the input and output circuits for signal processing. The cable routing for safety circuits
should be as far away as possible from the cables of the power circuits.
Ì
To avoid EMC interference, the physical environmental and operating conditions at the in-
stallation site of the device must comply with the requirements according to the standard
EN 60204-1:2006, section 4.4.2 (EMC).
Ì
Please pay attention to any interference fields in case of devices such as frequency converters or
induction heating systems. Observe the EMC instructions in the manuals from the respective man-
ufacturer.
Important!
If the device does not appear to function when operating voltage is applied (e.g. green STATE LED
does not flash), the safety switch must be returned unopened to the manufacturer.
8.1. Notes about
Important!
Ì
For use and operation as per the
requirements
1)
, a power supply with the feature “for use in
class 2 circuits” must be used.
Alternative solutions must comply with the following requirements:
Ì
Electrically isolated power supply unit in combination with fuse as per UL248. This fuse should be
designed for max. 3.3 A and should be integrated into the 30 V DC voltage section.
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For use and applications as per the
requirements
1)
, a connection cable listed under UL cate-
gory code CYJV must be used.
1) Note on the scope of the UL approval: Only for applications as per NFPA 79 (Industrial Machinery). The devices have been tested as per the requirements of UL508
(protection against electric shock and fire).