Appendix H
Plate Drive Installation Instructions
Introduction
The PowerFlex 40P is available in a plate drive version without heatsink.
This is designed to allow mounting to a customer supplied heatsink. This
may be a large heatsink to be shared by multiple drives, a large thermal
mass that is part of a system, or some other heat-sinking system. Care
must be taken to insure the heatsink used provides adequate cooling for
the drive power components as well as a flat and clean surface for a
proper thermal interface.
General Requirements
The drive is designed to operate with the drive enclosed and the heatsink
exposed for improved cooling. Therefore, it is expected that the drive
control section will experience a higher ambient temperature than the
heatsink.
Table H.A Maximum Surrounding Air Temperature
Note that the standard 480V 11 kW (15 HP) drive includes an internal
inductor. This inductor cannot be included in the plate drive. Therefore,
this rating requires the use of an external DC inductor or an AC input
reactor as described in Table B.E on page B-3
.
Heatsink 40° C (104° F)
Drive 50° C (122° F)
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