Altivar 38 - variable speed drive - user's manual

Mounting and Temperature Conditions
Install the unit vertically to within +/-10 °.
Do not place it close to heating elements.
Leave sufficient free space to ensure that the air required for cooling purposes can circulate from the bottom
to the top of the unit.
ATV38HU18N4 to D23N4
³ 50
Free space in front of unit: 10 mm minimum.
ENGLISH
³ d ³ d
³ 50
ATV38HU18N4 to U90N4:
From - 10 °C to 40 °C: d ≥ 50 mm: no special precautions.
d = 0: remove the protective blanking cover from the top of the drive as shown overleaf
(the degree of protection is then IP 20).
From 40 °C to 50 °C:
d ≥ 50 mm: remove the protective blanking cover from the top of the drive as shown
overleaf (the degree of protection is then IP 20).
d = 0: add control ventilation kit VW3A5882• (see ATV38 catalogue).
From 50 °C to 60 °C:
d ≥ 50 mm: add control ventilation kit VW3A5882• (see ATV38 catalogue).
Derate the operating current by 2.2% per °C over 50 °C.
ATV38HD12N4 to D23N4:
From - 10 °C to 40 °C: d ≥ 50 mm: no special precautions.
d = 0: remove the protective blanking cover from the top of the drive as shown overleaf
(the degree of protection is then IP 20).
From 40 °C to 50 °C:
d ≥ 50 mm: remove the protective blanking cover from the top of the drive as shown
overleaf (the degree of protection is then IP 20).
Derate the current by 2.2% per °C over 40 °C.
d = 0: add control ventilation kit VW3A5882 (see ATV38 catalogue). Derate the current
by 2.2% per °C over 40 °C.
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