Allen-Bradley 1734-OB2, User Manual, Page: 24 / 221

Rockwell Automation Publication 1734-UM001E-EN-P - July 2013
8 Install POINT I/O Modules
Explosion Hazard
Prevent Electrostatic Discharge
ATTENTION: POINT I/O is grounded through the DIN rail to chassis
ground. Use zinc-plated, yellow-chromated steel DIN rail to assure
proper grounding. The use of DIN rail materials (for example, aluminum
or plastic) that can corrode, oxidize, or are poor conductors, can result in
improper or intermittent grounding.
Secure DIN rail to mounting surface approximately every 200 mm
(7.8 in.).
WARNING:
• Do not disconnect equipment unless power has been removed or the
area is known to be nonhazardous.
• Do not disconnect connections to this equipment unless power has been
removed or the area is known to be nonhazardous. Secure any external
connections that mate to this equipment by using screws, sliding
latches, threaded connectors, or other means provided with this product.
• Substitution of components may impair suitability for Class I, Division 2.
• If this product contains batteries, they must only be changed in an area
known to be nonhazardous.
ATTENTION: This equipment is sensitive to electrostatic discharge,
which can cause internal damage and affect normal operation. Follow
these guidelines when you handle this equipment:
•
Touch a grounded object to discharge potential static.
•
Wear an approved grounding wriststrap.
•
Do not touch connectors or pins on component boards.
•
Do not touch circuit components inside the equipment.
•
Use a static-safe workstation, if available.
•
Store the equipment in appropriate static-safe packaging when not in
use.