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Design Considerations
Removal or Insertion Under Power (RIUP)
Removal or Insertion Under Power (RIUP) of any 1444 series main or
expansion module is permitted only in a nonhazardous area.
ATTENTION:
• In a hazardous area, the module must be powered down before removal.
• Always consider the consequences for the system and the monitored machine
before you power down or remove any module from service.
The Dynamix™ modules must be placed in a protective metal enclosure with a
minimum recommended protection class of IP54.
Multiple modules can be placed in one housing, providing proper
consideration has been given to the following:
• System design and planning
• Mounting
• Module and connection accessibility
• Wiring, cabling, and routing
• System operating temperature and reliability
Electro Magnetic Compatibility (EMC) Precautions
While the module has been thoroughly tested for EMC compliance,
performance in real world situations depends on the care that is taken during
system design and installation. Follow the preferred practices listed.
Table 4 - EMC Precautions
Verify that metal parts
• Connect all inactive metal parts, like cabinet walls and doors, to ground.
are well grounded.
• Verify that the entire surface area is grounded and the connection to ground is low
impedance.
• Applies to the enclosure and any additional cable junction boxes.
• Avoid using aluminum parts whenever possible for grounding. Aluminum oxidizes
easily, which causes its resistance to vary.
Route cables with
• Divide the wiring into categories (power supply, sensors, and control signals).
care.
• Use sufficient separation between the wire groups.
• Always run any high current/high-voltage lines and signal/data lines in separate
conduits or bundles.
• Run the signal lines as closely as possible to the ground areas (for example, bus bar,
metal rails and cabinet metal).
• Further details about the wiring category and routing are provided in the following
sections, and the wiring category identifications are provided in the applicable
specifications section.
Rockwell Automation Publication 1444-UM001D-EN-P - June 2018
Install the Dynamix 1444 Series Monitoring System
Chapter 2
27
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