6.14 Electromagnetic Compatibility (EMC)
Please observe the following to ensure maximum protection against electrical and
magnetic fields:
• The encoder must be mounted to a galvanic conductive surface� The mounting surfaces, the
threads of the mounting screws and the threads in the machine must be free from electrically non-
conductive coatings�
• Maintain the NUMERIK JENA shielding concept for the measuring system!
• Shielding for encoders without connectors:
- When connected directly with the evaluation electronics, ensure that the external shield of the
cable is well grounded
- If cable connectors (e.g. terminal strips, etc.) are used, connect the external shields of the
cables with each other and with the shielding of the cable connector
• When using additional electronics, connect the housing electrically conducting to ensure good
galvanic conductivity� For insulated installation the housing should be connected at the shortest
distance by an additional potential equalization line (Cu line with cross section ≥6 mm
2
) with the
machine’s protective ground�
• Please contact the NUMERIK JENA support or that of the appropriate manufacturer if you experience
any problems when working with specific display or control units.
!
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