42 Rockwell Automation Publication 1791ES-UM001G-EN-P - November 2016
Chapter 3 Install the Module
Environmental
Considerations for Use
Do not use the module in locations that are subject to these conditions:
•Direct sunlight
• Temperatures or humidity beyond the ranges noted in Specifications on
page 161
• Condensation as the result of severe changes in temperature
• Corrosive or flammable gases
• Dust, especially iron dust (only 1791ES modules)
•Salts
• Water (only 1791ES modules)
• Oil or chemicals
• Shock or vibration beyond the range noted in Specifications on
page 161
Do not clean the modules with these materials:
• Acetone
•Benzene
•Thinner
Follow Wiring Precautions
WARNING: Connecting and Disconnecting Wiring and Cables
• When you connect or disconnect the removable terminal block (RTB) or
power cables with field-side power applied, an electrical arc can occur. This
could cause an explosion in hazardous location installations. Be sure that
power is removed or the area is nonhazardous before proceeding.
• If you connect or disconnect wiring or cables while the field-side power is
on, an electrical arc can occur. This could cause an explosion in hazardous
location installations. Be sure that power is removed or the area is
nonhazardous before proceeding.
• If you connect or disconnect the communication cables with power applied
to this module or any device on the network, an electrical arc can occur. This
could cause an explosion in hazardous location installations.
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