Power Requirements; Section 2.5 Selecting A Rack Slot; Section 2.6 Selecting A Location - Spectrum Controls SLC 500 User Manual

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201: Particular Requirements for Control Equipment.
For specific information required by EN 61010-2-201, see the appropriate
sections in this publication, as well as the following Allen-Bradley publications:
Industrial Automation Wiring and Grounding Guidelines For Noise
Immunity, publication 1770-4.1
Automation Systems Catalog, publication B111.
This equipment is classified as open equipment and must be installed (mounted)
in an enclosure during operation as a means of providing safety protection.
Power
Requirements
The module receives power through the bus interface from the +5 VDC/+24
VDC system power supply. The maximum current drawn by the module is
shown in the table below:
Module
1746sc-INI4i
1746sc-INI4vi
Use the table above to calculate the total load on the system power supply. For
more information, see the Allen-Bradley system Installation and Operation
Manual.
IMPORTANT. Your module does not supply power for input devices.
NOTE
You must supply the appropriate power
Section 2.5
Selecting a
Rack Slot
Two factors determine where you should install your module in the rack:
ambient temperature and electrical noise. When selecting a slot for your module,
try to position your module:
Remember that in a modular system, the processor always occupies the first slot.
of the rack.
Section 2.6
Selecting a
Location
Most applications require installation in an industrial enclosure to reduce the
Chapter 2: Installation and Wiring
In a rack close to the bottom of the enclosure (where the air is cooler).
Away from modules that generate significant heat, such as 32-point
input/output modules.
In a slot away from AC or high-voltage DC modules, hard contact
switches, relays, and AC motor drives.
Away from the rack power supply (if using a modular system).
5 VDC
440 mA
550 mA
User's Manual Pub. 0300266-04 Rev. A
2-3
24 VDC
0 mA
0 mA

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