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12’–24’ BASIC6

™

Grounding

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frequency content on the output side of the fan controller, measures must be taken to ensure that all grounding connections conform to

the recommendations made in this section.

The fan controller’s safety ground

(PE) must be connected to system ground. Ground impedance must conform to the

requirements of national and local industrial safety regulations and/or electrical codes. The integrity of all ground connections should be

periodically checked. All ground leads for downstream conduit boxes must be kept separate from the motor ground and terminated on

the fan controller’s PE terminal.

Motor ground

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building’s ground grid.

Shielded motor cable terminations

Either of the safety ground terminals on the drive provides a grounding point for the motor cable shield. The motor cable shield

connected to one of the drive terminals must also be connected to the motor frame. If no drain lead is present, the cable must be

stripped back so that the braid can be twisted and soldered to a pigtail for proper termination.

Electrical Installation (cont.)

BIG ASS FANS Basic^ User Manual

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