Altitude derating – Yaskawa A1000 6-Phase/12-Pulse Input User Manual
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Setting 3: External Heatsink Installation, Finless Drive
Drive operation between -10 °C and +40 °C allows 100% continuous current without derating. Operation between +40 °C and
+50 °C requires output current derating.
100
85
70
55
0
L8-35 = 2: IP20/NEMA Type 1 Enclosure
L8-35 = 3: External Heatsink lnstallation
L8-35 = 0: IP00/Open-Chassis Enclosure
30
-10
40
50
Drive Rating
(%)
L8-12
(Ambient temp:
°C)
L8-35 = 1: Side-by-Side Mounting
Figure 21 Ambient Temperature and Installation Method Derating
n
Altitude Derating
The drive standard ratings are valid for installation altitudes up to 1000 m. For installations from 1000 m to 3000 m, the drive
rated voltage and the rated output current must be derated for 0.2% per 100 m.
8 Specifications
YASKAWA TOEP YAIA1U 02A YASKAWA AC Drive – A1000 6-Phase/12-Pulse Input Installation Manual
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