Do-more H2 Series PLC User Manual, 1st Edition, Rev. F - H2-DM-M
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Chapter 8: Installation and Wiring
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Environmental Specifications
The following table lists the environmental specifications that generally apply to the
Do-more
system
(CPU, Bases, I/O Modules). I/O module operation may fluctuate depending on the ambient
temperature and your application. Please refer to the appropriate I/O module specifications for
the temperature derating curves applying to specific modules.
Marine Use
American Bureau of Shipping (ABS) certification requires flame-retarding insulation as per 4-8-
3/5.3.6(a). ABS will accept Navy low smoke cables, cable qualified to NEC “Plenum rated” (fire
resistant level 4), or other similar flammability resistant rated cables. Use cable specifications
for your system that meet a recognized flame retardant standard (i.e. UL, IEEE, etc.) including
evidence of cable test certification (i.e. tests certificate, UL file number, etc.).
NOTE:
Wiring needs to be “low smoke” per the above paragraph. Teflon coated wire is also recommended.
Agency Approvals
Some applications require agency approvals. Typical agency approvals which your application
may require are:
• UL (Underwriters’ Laboratories, Inc.)
• CSA (Canadian Standards Association)
• FM (Factory Mutual Research Corporation)
• cUL (Canadian Underwriters’ Laboratories, Inc.)
24VDC Power Bases
Follow these additional installation guidelines when installing D2-03BDC1-1, D2-04BDC1-1,
D2-06BDC1-1 and D2-09BDC1-1 bases:
• Install these bases in compliance with the enclosure, mounting, spacing, and segregation requirements
of the ultimate application.
• These bases must be used within their marked ratings.
• These bases are intended to be installed within an enclosure rated at least IP54.
• Provisions should be made to prevent the rated voltage being exceeded by transient disturbances of
more than 40%.
Specification
Rating
Storage temperature
–4° F to 158° F (–20° C to 70° C)
Ambient operating temperature
32° F to 131° F (0° C to 55° C)
Ambient humidity*
30% – 95% relative humidity (Non–condensing)
Vibration resistance
MIL STD 810C, Method 514.2
Shock resistance
MIL STD 810C, Method 516.2
Noise immunity
NEMA (ICS3–304)
Atmosphere
No corrosive gases
* Equipment will operate below 30% humidity. However, static electricity problems occur much more
frequently at lower humidity levels. Make sure you take adequate precautions when you touch the
equipment. Consider using ground straps, anti-static floor coverings, etc., if you use the equipment in
low humidity environments.
