Earth loopsĬonnecting cable shields on both ends can produce loops. If such a mounting configuration is not possible, then connect the shields according to the operating instruction with as low a resistance as possible to the „Earth“ contact or the screw on the housing. Hence, the different cable shields can easily be mounted with large connecting areas on the mounting plate giving an ideal shield connection on the controller side. Ideally the housing is mounted electrically connected on a metal plate. Most maxon controllers have a metal housing. sensitive analog signals with low signal level). While the connection of a machine to the safety earth guarantees the protection against overvoltage in the case of an error, the connection of the cable shields to the shielding earth represents a protection against interference immission and emission.įor maximum interference suppression the cable shields must be mounted on both ends and with a resistance as low as possible. As a rule the safety earth and the shielding earth have the same potential. The term „Shielding earth“ includes the connection points where cable shields are connected. The term „Safety earth“ is defined as a security measure for the protection of people.
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