Altitude Derating - YASKAWA HV600 Technical Reference

7.9 Drive Derating
A - Drive Models: 4005 and 4008 (bypass models
B003 to B007)
B - Drive Models: 4011 to 4027 (bypass models B011
to B027)
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Altitude Derating

Install the bypass in a location that has an altitude of 1000 m (3281 ft) or lower.
Derate the output current by 1% for each 100 m (328 ft) to install the bypass in altitudes between 1000 to 4000 m
(3281 to 13123 ft).
It is not necessary to derate the rated voltage in these conditions:
546
Figure 7.2 Derating for Side-by-Side Mounting (L8-35 = 1)
Figure 7.3 Derating for IP20/UL Type 1 (L8-35 = 2)
Figure 7.4 Derating for IP55/UL Type 12 (L8-35 = 3)
C - Drive Models: 4034 to 4065 (bypass models B034
to B065)
D - Drive Models: 2011 to 2273 and 4077 to 4302
(bypass models D002 to D273, A002 to A248, and
B302)
YASKAWA SIEPYAIH6B01A HV600 AC Drive Bypass Technical Reference