4.1 Installation and Usage Conditions
4.1.2 Control Panel Cooling Method
4-3
4.1.2
Control Panel Cooling Method
The components that are used in the Machine Controller require the ambient operating temperature to be
between 0 and 60
°
C. Use one of the methods described below to ensure adequate cooling in the control panel.
Control Panels with Natural Cooling
• Do not mount the Machine Controller at the top of the control panel, where the hot air that is
generated inside the panel collects.
•
Leave sufficient space above and below the Machine Controller, and maintain adequate distances from
other devices, cable ducts, and other objects to ensure suitable air circulation.
• Do not mount the Machine Controller in any direction other than the specified direction.
•
Do not mount the Machine Controller on top of any device that generates a significant amount of heat.
• Do not subject the Machine Controller to direct sunlight.
Control Panels with Forced-air Cooling
For either of the following methods, install a fan near the center of and at the top or bottom of the Machine Controller.
•
Forced draft method (A fan or a similar device is used to circulate the air in the interior and the exterior of the panel.)
•
Forced circulation method (A fan or a similar device is mounted to the airtight panel to circulate the air inside.)
If the ambient temperature exceeds 55°C, use forced-air cooling.
1. Use the following guideline when selecting the fan:
•
80
×
80 mm min., Maximum air flow: 0.9 m
3
/min, Maximum static pressure: 26.5 Pa or higher
2. Adjust the fan installation location and the direction of air flow as shown in the following diagram.
Fan
Fan
40 mm min.
10 mm
min.*
* For a control panel with natural cooling with a Base Unit other than the MBU-304: 30 mm min.
10 mm
min.*
40 mm min.
Approx.
40 mm
Direction
of air ow
Direction
of air ow
Approx.
40 mm
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