1.3 Precautions for Using Inverters
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1.3 Precautions for Using Inverters
This section provides precautions in introducing inverters, e.g. precautions for installation environment, power
supply lines, wiring, and connection to peripheral equipment. Be sure to observe those precautions.
1.3.1 Usage environment
Install FRENIC-MEGA in an environment that satisfies the operating environment requirements listed in Table 1.3-
1.
Table 1.3-1 Operating environment
Indoors Environmental conditions: IEC60721-3-3:3C2
-10 to +55 °C (14 to 131ºF) (Current derating is necessary in the +50 to +55 ºC (122 to
131ºF) range.) (Note 3)
When installed closely side-by-side (FRN0115G2□-2G / FRN0060G2□-4G or lower):
-10 to +40 ºC (14 to 104ºF)
5 to 95% RH (there should be no condensation)
The inverter must not be exposed to dust, direct sunlight, corrosive gases, flammable gases,
oil mist, vapor or water droplets.
(Pollution degree 2 (IEC60664-1)) (Note 1)
The atmosphere can contain a small amount of salt (0.01 mg/cm
2
or less per year).
The inverter must not be subjected to sudden changes in temperature that will cause
condensation to form.
1,000 m (3,300 ft) max. (Note 2)
FRN0115G2□-2G or lower,
FRN0060G2□-4G or lower
FRN0288G2□-2G or lower,
FRN0180G2□-4G or lower
FRN0346G2□-2G or higher,
FRN0216G2□-4G or higher
(Note 1) Do not install the inverter in an environment where it may be exposed to lint, cotton waste or moist dust
or dirt which will clog the heat sink of the inverter.
If the inverter is to be used in such an environment, install it in cabinet to prevent lint, etc. getting in.
(Note 2) If you use the inverter in an altitude above 1,000 m (3,300 ft), you should apply an output current derating
factor as listed in Table 1.3-2 below.
Table 1.3-2 Output current derating factor relative to altitude
Output current derating factor
1,000 m (3,300 ft) or less
1,000 to 1500 m (3,300 to 4,900 ft)
1,500 to 2,000 m (4,900 to 6,500 ft)
2,000 to 2,500 m (6,500 to 8,200 ft)
2,500 to 3,000 m (8,200 to 9,800 ft)