Woodward Vertex-Pro, Installation/Hardware Manual, Page: 87 / 112

Manual 26489V1 Vertex-Pro Motor-Driven Compressor Control
Woodward 77
9.2.9—Connection of Cabinet to Installation Ground

Ensure the cabinet enclosure is electrically grounded to the plant ground
system. Use as large a conductor as is possible. Use plant guidelines.
9.2.10—DIN Rail Grounding

Provide Chassis ground to FTMs using a DIN rail ground clip.

Install one each of these clips at the FTM end closest to the Earth ground
connection point.

Use largest gauge wire allowed by Clip and FTM.

Maximum length of ground wire shall not exceed 5 cm/2”
9.2.11—Equipment Bonding

DIN rail shall be electrically connected to structural frame (<2.5 m Ω ) once
every 30 cm/12”.

Use a minimum of 2 screws to bond a DIN rail to cabinet frame.

Equipment chassis shall be electrically connected to structural frame (<2.5
m
Ω ).
9.2.12—Safety Ground Wire Installation

Safety wires shall be routed against the grounded cabinet structure. Locate
safety ground wire 6” from unshielded cabling, 3” from internal shielded
cabling, and 15 cm/6” from any I/O cabling exiting the cabinet.
9.2.13—Installation of Other Equipment, Fans, Meters, etc.
Shield Termination Schemes

See Application Note B51204 for this information.