Beckhoff AL2000 Application Manual do Utilizador descarregar pdf (Página 33)

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Heatflow, without water cooling

Now the heat conducting route and the thermal resistance are much harder to determine. The continuous force

has to be estimated. The lower value is specified in the follwing case:

• A mounting surface about two times the motor dimension.

• Air temperature up to 45°C under a closed hood.

• Stationary or short moves.

The high value can be taken for a large surface (f.i. cooling ribs), forced convection and regulated air tempera-

ture below 30°C. For all other situations, estimate a value in between.

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Beckhoff AL2000 Application Manual do Utilizador Página 33