IAI America SCON-C - Manual (Page 41)

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3. Installation and Wiring
3.1 Installation Environment
(1) When installing and wiring the controller, do not block the ventilation holes for cooling. (Insufficient
ventilation may not only prevent the controller from demonstrating its design performance fully, but it may
also cause a breakdown.)
(2) Prevent foreign matter from entering the controller through the ventilation holes. This controller is not
dustproof or splashproof (against water or oil), so avoid using the controller in a place subject to large
amounts of dust, oil mist or splashes of cutting fluid.
(3) Keep the controller from direct sunlight or irradiated heat from large heat sources such as heat treatment
furnaces.
(4) Use the controller in an environment of 0 to 40
C in surrounding air temperature and 85% or below in
humidity (non-condensing), where the surrounding air is free from corrosive or flammable gases.
(5) Use the controller in an environment where it does not receive external vibration or impact.
(6) Prevent electrical noise from entering the controller or connected cables.
3.2 Heat Radiation and Installation
Design the control panel size, controller layout and cooling method so that the temperatures around the
controller will always be kept to 40
C or below.
Mount the controller on a wall vertically as shown below. This controller implements cooling by means of forced
ventilation (air is blown out from the top). When installing the controller, observe the aforementioned direction
and provide a minimum clearance of 100 mm above and 50 mm below the controller, and 30 mm from an
adjacent controller.
If you are installing multiple controllers side by side, provide a fan on top of the controllers to agitate the
airflows as an effective way to keep the surrounding air temperatures constant.
Provide a minimum clearance of 150 mm between the front face of the controller and the wall (cover).
If multiple controllers are linked with the controllers arranged vertically, make sure the exhaust air from a given
controller is not sucked into the controller above it.
Provide a clearance of approx. 50 mm between a controller and a regenerative box, or 10 mm between
regenerative boxes.
Air direction
At least 100 mm
At least 50 mm
At least
150 mm
Airflow
Regenerative boxes
Fan