Delta Tau GEO MACRO DRIVE User Manual download pdf (Page 42)

Geo MACRO Drive User Manual

30 Connections

panel.

Power input wiring does not require shielding (screening) if the power is fed to the enclosure via metal

conduit. If metal conduit is not used in the system, shielded cable is required on the power input wires

along with proper bonding techniques.

Filtering

CE Filtering

Apply proper bonding and grounding techniques, described earlier in this section, when incorporating

EMC noise filtering components to meet this standard.

Noise currents often occur in two ways. The first is conducted emissions passed through ground loops.

The quality of the system-grounding scheme inversely determines the noise amplitudes in the lines.

These conducted emissions are of a common-mode nature from line-to-neutral (ground). The second is

radiated high-frequency emissions that usually are capacitively coupled from line-to-line and are

differential in nature.

When mounting the filters, make sure the enclosure has an unpainted metallic surface. This allows more

surface area to be in contact with the filter housing and provides a lower impedance path between the

housing and the back plane. The back panel should have a high frequency ground strap connection to the

enclosure frame and earth ground.

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Delta Tau GEO MACRO DRIVE User Manual Page 42