Electrical Considerations; Controller Grounding; Chapter 6 - Wiring And Cabling Planning - Honeywell ControlEdge 900 platform Hardware Planning And Installation Manual

CHAPTER
6
WIRING AND CABLING PLANNING
Before wiring and cabling, the electrical environment including
grounding and distance should be considered. This section provides
wiring and cabling diagrams and specifications to assist with the
planning.

Electrical considerations

Racks must be mounted and wired using following good industrial
practices, such as proper grounding, shielding, local and national
electrical codes to ensure proper operation, safety, electrical and EMC
compliance.
This section includes diagrams showing the recommended wiring
practice for each protective electrical enclosure.
When redundant power supplies are used in Redundant Controller
Racks or I/O rack, separate line power sources are recommended to
provide the highest level of redundancy and system operation.
Deviations from the installation conditions specified in this manual
may invalidate this product's conformity with Low Voltage and EMC.
CAUTION:
l
l

Controller grounding

Protective bonding (grounding) of the controller and the enclosure in
which it is installed must be in accordance with National Electrical
Code (ANSI/NFPA 70), Canadian Electrical Code (CEC) and with local
electrical codes.
Hazardous voltages exist in the equipment enclosure. Identify
and avoid contact with voltage sources.
Failure to comply with these instructions could result in death
or serious injury.
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