Kendrion Kuhnke Automation GmbH Reliability, Safety unshielded digital I/O lines unshielded DC voltages unshielded AC voltages Location of Installation Ensure that temperatures, contaminations, impact, vibration or electromagnetic interference are no impediment to the installation. Temperature Consider heat sources such as general heating of rooms, sunlight, heat accumulation in assembly rooms or control cabinets. Contamination Use suitable casings to avoid possible negative influences due to humidity, corrosive gas, liquid or conducting dust. Impact and Vibration Consider possible influences caused by motors, compressors, transfer lines, presses, ramming machines and vehicles.
Electromagnetic Interference Consider electromagnetic interference from various local sources: motors, switching devices, switching thyristors, radio-controlled devices, welding equipment, arcing, switched-mode power supplies, converters / inverters. Particular Sources of Interference Inductive Actuators Switching off inductances (such as from relays, contactors, solenoids or switching magnets) produces surge voltages. It is necessary to reduce these extra voltages to a minimum. Throttling elements could be diodes, Z-diodes, varistors or RC elements. Their rating should conform to the specifications provided by the manufacturer or supplier of the actuators.
Kuhnke FIO CAM Control ( E 808 GB ) 10 11/10/2017