The actual amount of power required in a DIN rail mounted subsystem depends on the number of Fieldbus Modules (FBMs)/Fieldbus Communication Modules (FCMs)/Field Control Processors (FCPs) being powered, the types of termination assemblies used, and whether internal or external powering is used for the individual field device(s). The FPS400-24 can also be used as a field power supply to power external field devices. However, for system integrity field devices and DIN rail baseplates should not be powered from the same FPS400-24.
PACKAGING
The robust gasketed design lends itself to minimal maintenance because the housing is sealed and there are no fans to wear out. The sealed gasketed design also provides protection for corrosive atmospheres such as hydrogen sulfides and chlorine, as found in many process control plants. The power supply has a DIN rail mounting bracket for mounting on a horizontal or vertical DIN rail. The bracket can be rotated for horizontal or vertical DIN rail mounting or removed for wall mounting of the power supply
STATUS ALARMS
Visual LED indicators for undervoltage and normal operating voltage output are contained on the power supplies. To indicate the absence of 24 V dc output, a form C relay output is available to activate an externally powered alarm. SIMPLIFIED WIRING The power supply is designed to be used with special cables (ordered separately) to make installation easy and improve personal safety. Refer to “PHYSICAL SPECIFICATIONS” on page 9.
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