Installation manual

14
Mounting and temperature conditions
Derating curves
Derating curves for the drive current In as a function of the temperature, switching frequency and type of mounting.
ATV71H 037M3 to D15M3X and ATV71H 075N4 to D18N4
ATV71H D22N4 and ATV71H D30N4 (1)
ATV71H D18M3X to D45M3X and ATV71H D37N4 to D75N4 (1)
For intermediate temperatures (e.g. 55°C (131°F)), interpolate between two curves.
(1)Above 50°C (122°F), these drives must be equipped with a control card fan kit. Please refer to the catalog.
In = 100 %
90 %
80 %
70 %
60 %
50 %
4 kHz 8 kHz 12 kHz 16 kHz
Switching frequency
I/In
40°C (104°F) mounting type A
50°C (122°F) mounting type B
50°C (122°F) mounting type A
60°C (140°F) mounting types A and B
40°C (104°F) mounting type B
In = 100 %
90 %
80 %
70 %
60 %
50 %
4 kHz 8 kHz 12 kHz 16 kHz
Switching frequency
I/In
50°C (122°F) mounting types A and B
60°C (140°F) mounting types A and B
40°C (104°F) mounting types A and B
In = 100 %
90 %
80 %
70 %
60 %
50 %
4 kHz 8 kHz 12 kHz 16 kHz
2,5 kHz
Switching frequency
I/In
50°C (122°F) mounting types A and B
60°C (140°F) mounting types A and B
40°C (104°F) mounting types A and B