text: <s>[INST] Powerflex 4 horizontal mounting Are there derating factors when mounting a Powerflex 4 horizontal ( sideways ) ? [/INST] David9, is it possible to provide forced air through the drive in the horizontal mounting configuration? Can you add a pancake fan to your enclosure directing air through the drive's cooling fins? We've done this for PLCs, & servo drives mounted horizontally to eliminate the need for derating. \\n </s>