Altitude Derating - YASKAWA GA500 Maintenance & Troubleshooting

A - L8-35 = 0 [IP20/UL Open Type]
(0.5 m/s of airflow around the
drive is necessary)
B - L8-35 = 1 [Side-by-Side
Mounting]
◆

Altitude Derating

Install the drive 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 drive in altitudes between 1000 to 4000 m (3281
to 13123 ft).
It is not necessary to derate the rated voltage in these conditions:
• Installing the drive at 2000 m (6562 ft) or lower
• Installing the drive between 2000 to 4000 m (6562 to 13123 ft) and grounding the neutral point on the power
supply.
If you do not ground the drive with a neutral network, contact Yaskawa or your nearest sales representative.
YASKAWA TOEPYAIGA5001A GA500 DRIVE MAINTENANCE & TROUBLESHOOTING
Figure 7.1 Derating Depending on Drive Installation Method
C - L8-35 = 2 [IP20/UL Type 1]
D - L8-35 = 3 [External Heatsink/
Finless]
7.6 Drive Derating
7
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