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2.3
Installation of the converter unit and enclosure
design
When designing or manufacturing an enclosure to contain the converter unit, determine the structure, size, and device layout
by fully considering the conditions such as heat generation of the contained devices and the operating environment. A
converter unit uses many semiconductor devices. To ensure higher reliability and long period of operation, operate the
converter in the ambient environment that completely satisfies the equipment specifications.
2.3.1
Converter unit installation environment
The following table lists the standard specifications of the converter unit installation environment. Using the converter unit in
an environment that does not satisfy the conditions deteriorates the performance, shortens the life, and causes a failure. Refer
to the following points, and take adequate measures.
Standard environmental specifications of the converter unit
Item
Surrounding
FR-CC2-H315K to H560K: -10°C to +50°C (non-freezing)
air
FR-CC2-H630K: -10°C to +40°C (non-freezing)
temperature
Ambient
95% RH or less (non-condensing)
humidity
Storage
*1
-20 to +65°C
temperature
Atmosphere
Indoors (free from corrosive gas, flammable gas, oil mist, dust and dirt)
Altitude
Maximum 2500 m
2
Vibration
2.9 m/s
or less at 10 to 55 Hz (in either X, Y, or Z direction)
*1
Temperature applicable for a short time, for example, in transit.
*2
For installation at an altitude above 1000 m, consider a 3% reduction in the rated current per 500 m increase in altitude.
Temperature
The permissible surrounding air temperature of the converter unit is between -10°C and +50°C (-10°C and +40°C for the FR-
CC2-H630K). Always operate the converter unit within this temperature range. Operation outside this range will considerably
shorten the service lives of the semiconductors, parts, capacitors and others. Take the following measures to keep the
surrounding air temperature of the converter unit within the specified range.
Measures against high temperature
• Use a forced ventilation system or similar cooling system. (Refer to
• Install the enclosure in an air-conditioned electric chamber.
• Block direct sunlight.
• Provide a shield or similar plate to avoid direct exposure to the radiated heat and wind of a heat source.
• Ventilate the area around the enclosure well.
Measures against low temperature
• Provide a space heater in the enclosure.
• Do not power OFF the converter unit.
Sudden temperature changes
• Select an installation place where temperature does not change suddenly.
• Avoid installing the converter near the air outlet of an air conditioner.
• If temperature changes are caused by opening/closing of a door, install the converter away from the door.
*2
Description
5cm
Measurement
position
page
27.)
2.3 Installation of the converter unit and enclosure design
Measurement
position
Converter
unit
5cm
5cm
2. INSTALLATION AND WIRING
1
2
3
4
5
6
7
8
9
10
25
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