22
2. INSTALLATION AND WIRING
2.3 Installation of the converter unit and enclosure design
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
*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 +40°C. 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.
Item
Description
Surrounding
air
temperature
-10°C to +40°C (non-freezing)
Ambient
humidity
95% RH or less (non-condensing)
Storage
temperature
-20°C to +65°C
Atmosphere
Indoors (free from corrosive gas, flammable gas, oil mist, dust and dirt)
Altitude
Maximum 4000 m
Vibration
Frequency range 10 to 57 Hz: maximum amplitude 0.075 mm. Frequency range 57 to 150 Hz: maximum acceleration speed
1G.
Measurement
position
Measurement
position
Converter
unit
5cm
5cm
5cm
Содержание FR-CC2-N Series
Страница 61: ...60 3 PRECAUTIONS FOR USE OF THE CONVERTER UNIT 3 4 Checklist before starting operation MEMO ...
Страница 137: ...136 5 PARAMETERS 5 10 Checking parameters changed from their initial values initial value change list MEMO ...
Страница 153: ...152 6 PROTECTIVE FUNCTIONS 6 6 Check first when you have a trouble MEMO ...
Страница 165: ...164 7 PRECAUTIONS FOR MAINTENANCE AND INSPECTION 7 2 Measurement of main circuit voltages currents and powers MEMO ...
Страница 171: ...170 8 SPECIFICATIONS 8 3 Outline dimension drawings MEMO ...