ABB MicroFlex e150, Руководство пользователя

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Mechanical installation 29
Mounting and cooling
Ensure you have read and understood
Requirements for the installation site
on page
27
. Mount the MicroFlex e150 vertically on its rear side, the side opposite the front
panel. M5 bolts or screws should be used to mount the MicroFlex e150. Detailed
dimensions are shown in
Dimension drawing (all models)
on page
128
.
For effective cooling, the MicroFlex e150 must be mounted upright on a smooth
vertical metal surface. The MicroFlex e150 is designed to operate in an ambient
temperature of 0 °C to 45 °C (32 °F to 113 °F). Output current must be derated
between 45 °C (113 °F) and the absolute maximum ambient temperature of 55 °C
(131 °F). Within the ambient temperature range:
• The 3 A model is designed to operate without any additional cooling methods.
• The 6 A and 9 A models require a forced air flow, passing vertically from the
bottom to the top of the MicroFlex e150 case, to allow full rated current at 45 °C
(113 °F).
Temperature derating characteristics are shown in
Temperature derating
on page
132
.
Failure to meet cooling air flow requirements will result in reduced product lifetime
and/or drive overtemperature trips. It is recommended to check periodically the
operation of the cooling equipment. Optional fan tray FAN001-024, mounted exactly
as shown in
Fan tray
on page
164
, ensures that correct cooling is provided and
allows the MicroFlex e150 to be UL listed.