Altitude Derating - YASKAWA AC Drive-A1000 Technical Manual

A.5 Drive Derating Data
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Altitude Derating

The drive standard ratings are valid for an installation altitude up to 1000 m. If the altitude exceeds 1000 m, the drive rated
voltage and the rated output current must be derated for 1% per 100 m. The maximum altitude is 3000 m.
378
Drive Rating
(%)
100
85
70
55
L8-35=1: Side-by-Side Mounting
0
30
-10
Figure A.2 Ambient Temperature and Installation Method Derating
L8-35=0: IP00 Enclosure
L8-35=2: NEMA Type 1 Enclosure
L8-35=3: External Heatsink lnstallation or
Finless Drive with C3 filter
L8-12
(Ambient temp: °C)
40 50
YASKAWA ELECTRIC SIEP C710616 31B YASKAWA AC Drive – A1000 Technical Manual