Operating instructions

Interference/Maintenance
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9.4 EMC Information
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An interference-free operation of the control devices of the company ELGO Electronic GmbH & Co. KG can
only be guaranteed if in assembly, wiring and operating the following basic rules are observed and adhered
to:
• use only shielded signal lines with a minimum diameter of 0.15 mm²
• to protect against electrical fields, connect the cable shield unilaterally, low resistance and low
inductive with the operating lightning protection.
• unused arteries in signal lines should be isolated from each other separately
• isolate signal and power lines separately in long parallel lines (a distance of 300 mm should be
respected). Therefore you should never integrate different voltage levels in one cable, e.g. 230V/50
Hz power supply and measuring Signal 24V DC.
• in devices with frequency converter the emitted interferences should be lowered through the
installation of filter networks, the use of shielded cables and the EMC-compatible earthing of the
frequency converter switch cabinets. In the operating instructions of the manufacturer of the
frequency converter you find the appropriate instructions.
• Wireless phones and Walky-talkies should never be used in the immediate vicinity of electronic
devices!
• inductive parts (breaks,...) which are connected with the controller through the cable or which are in
the immediate vicinity of the controller, have to be protected against inductive interference through
appropriate elements (diodes, RC-circuit, varistors).
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10 Maintenance
The unit works maintenance-free.