Rockwell Automation SA3000 High Power Modules - Manual (Page 25)

Installation Guidelines 3-1
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Installation Guidelines
This chapter describes the guidelines and wiring recommendations to be followed
when installing High Power SA3000 Power Modules. Installation and replacement
procedures are included for the 534A, 972A, and 1457A Power Modules.
3.1 Installation Planning
SA3000 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 SA3000 Configuration and Programming
instruction manual (S-3042) for more information on faults and warnings.
Use the following guidelines when planning your SA3000 Power Module installation:
• The relative humidity around the SA3000 Power Module must be kept between
5 and 90% (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 SA3000 Power Module's
current rating is derated 1%.
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recommendations given in IEC 68 concerning environmental operating conditions.
• Be sure surrounding equipment does not block service access to the SA3000
Power Module.
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bottom of the cabinet and exhaust it through the top of the cabinet. Each cabinet
bay of the SA3000 Power Module has one fan. Allow at least 30 cm (12") above and
2 m (6.6') in front of the SA3000 Power Module for adequate air clearance.
• Individual motor lead lengths cannot exceed 100 meters (328 feet).
• Refer to the Drive System Installation manual (D2-3115) for more information.
!
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.