Rockwell Automation SB3000 High Pwr SB3000 AC Pwr Modules (RCS) - Manual (Page 25)

Installation Guidelines 3-1
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HAPTER
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Installation Guidelines
This chapter provides guidelines and wiring recommendations to be followed when
installing SB3000 Power Modules. Hardware installation of the 445A, 890A, and
1335A units is covered. Please refer to the appropriate SA3000/SA3100 instruction
manual for information on properly connecting your AC inverter power module to the
SB3000 DC bus output.
3.1 Installation Planning
SB3000 Power Module current ratings are dependent upon inlet air temperature.
Ratings are given at 40° C (104° F) ambient. Refer to table 1.1 for output current
ratings.
Internal Power Module conditions are monitored by two thermal switches on the
heatsink. One switch is used to indicate a warning condition (register 203/1203, bit 7,
WRN_OT@); the other is used to indicate a fault condition (register 202/1202, bit 7,
FLT_OT@). The thermal warning switch closes at 78° C (172.4° F); the thermal fault
switch closes at 85°C (185° F). Refer to the SB3000 Configuration and Programming
instruction manual (S-3034) for more information on faults and warnings.
Use the following guidelines when planning your SB3000 Power Module installation:
• The relative humidity around the SB3000 Power Module must be kept between
5 and 95% (non-condensing).
• Do not install above 1000 meters (3300 feet) without derating. For every 91.4
meters (300 feet) above 1000 meters (3300 feet), the SB3000 Power Module's
current rating is derated 1%.
• Locate the SB3000 Power Module in a clean, cool, and dry area. Follow the
recommendations given in IEC 68 concerning environmental operating conditions.
• Be sure surrounding equipment does not block service access to the SB3000
Power Module.
• Allow adequate clearance for air ventilation. SB3000 Power Modules pull in air from
the bottom of the cabinet and exhaust it through the top of the cabinet. Each cabinet
bay of the SB3000 Power Module has one fan. Allow at least 30 cm (12") above and
2 m (6.6') in front of the SB3000 Power Module for adequate air clearance.
• AC input lead lengths, between the input reactor and the SB3000 Power Module’s
AC input terminals, cannot exceed 10 meters (33 feet).
!
ATTENTION: The user is responsible for conforming with all applicable
local, national, and international codes. Failure to observe this precaution
could result in damage to, or destruction of, the equipment.