IDEC SmartAXIS FT1A 12RA Series, Instruction Sheet, Page: 65 / 118

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7.1 Operating Environment
For designed performance and safety of the Touch, do not install the Touch in the following
environments:
• Where dust, briny air, or iron particles exist.
• Where oil or chemical splashes for a long time.
• Where oil mist is filled.
• In direct sunlight.
• Where strong ultraviolet rays exist.
• Where corrosive or combustible gasses exist.
• Where the Touch is subjected to shocks or vibrations.
• Where condensation occurs due to rapid temperature change.
• Where high-voltage or arc-generating equipment (electromagnetic contactors or circuit
protectors) exists in the vicinity.
7.2 Ambient Temperature
• Allow sufficient space for ventilation, and install the equipment away from heat sources.
• Allow at least 100mm between the Touch and walls or other equipment.
• Do not install the Touch where the ambient temperature exceeds the rated operating
ambient temperature range. When mounting the Touch in such locations, provide a
forced air-cooling fan or air-conditioner to keep the ambient temperature within the rated
temperature range.
• The Touch is designed to install on a vertical plane so that natural air-cooling is provided.
If you install it using any other orientation, use forced-air cooling, or lower the ambient
operating temperature.
Derating
■ FT1A-*12RA
When using the Touch at an ambient temperature of 45°C or higher, reduce the output
current of each output terminal as shown in the figure below.
Installed upright in landscape orientation
7 Installation
Output Current
10A
5A
1A
0
Ambient Temperature
45°C 50°C 55°C