Altitude Derating - YASKAWA GA700 Technical Manual

High performance type; 200 v class: 0.4 to 110 kw; 400 v class: 0.4 to 355 kw

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9.6 Drive Derating

Altitude Derating

Drive installations presumed to be located at altitudes of 1000 m (3281 ft.) or less.

Derate the output current by 1% for every 100 m (328 ft.) to install the drive in altitudes between 1000 m to 3000

m (3281 ft. to 9843 ft.).

Rated voltage derating is not required:

• when installing the drive at 2000 m (6562 ft.) or lower

• if the drive is grounded with the neutral network when installing the drive at an altitude between 2000 m to

3000 m (6562 ft. to 9843 ft.)

Contact Yaskawa or your nearest sales representative when the drive is not grounded with the neutral network.

YASKAWA ELECTRIC SIEP C710617 01B YASKAWA AC Drive GA700 Technical Manual