Altitude Derating - YASKAWA T1000V Technical Manual

Figure A.2
Drive
Rating
(%)

◆ Altitude Derating

The drive standard ratings are valid for an installation altitude up to 1000 m. If the altitude exceeds 1000 m both the drive
input voltage and the rated output current must be derated for 1% per 100 m. The maximum altitude is 3000 m.
YASKAWA ELECTRIC SIEP C710606 44B YASKAWA AC Drive T1000V Technical Manual
100
85
80
70
50
0
30
Figure A.2 Ambient Temperature and Installation Method Derating
L8-35 = 0 (Heatsink-Cooled Drive）
L8-35 = 2
(NEMA Type 1 Drive)
L8-35 = 3
(Finless Drive or External
Heatsink Installation)
L8-35 = 1
(Side-by-side Mounting)
Ambient tem p (°C)
L8-12
50
35 40
A.6 Drive Derating Data
A
315