Siemens SIMOTICS M-1FE2, Configuration Manual

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Motor components and options
4.1 Motor components
SIMOTICS M-1FE2 built-in motors
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Configuration Manual, 05/2021, A5E50494252B AB
The following recommendation applies in order to achieve an optimum motor heatsink
(enclosure) lifetime:
•
Construct a closed cooling circuit with the cooling unit using stainless steel technology.
The cooling circuit dissipates the heat via a water-water heat exchanger.
• For all other components, such as cooling circuit pipes and fittings manufactured of ABS,
use stainless steel or general construction steel.
Cooling system manufacturers
ait-deutschland GmbH www.kkt-chillers.com
BKW Kälte-Wärme-Versorgungstechnik GmbH www.bkw-kuema.de
DELTATHERM Hirmer GmbH www.deltatherm.de
Glen Dimplex Deutschland GmbH www.riedel-cooling.com
Helmut Schimpke und Team Industriekühlanlagen
GmbH + Co. KG
www.schimpke.org
Hydac System GmbH www.hydac.com
Hyfra Industriekühlanlagen GmbH www.hyfra.de
Pfannenberg GmbH www.pfannenberg.com
Note
Other manufacturers
You can also use equivalent products from other manufacturers.
Responsibility for the properties of third-party products resides with the plant manufacturer.
4.1.3.2 Configuring the cooling circuit
Note
Observing the maximum permitted pressure
The maximum permitted pressure in the cooling circuit is 0.7 MPa (7 bar).
If a pump is deployed that produces a higher pressure, the produced pressure must be limited
by the plant with suitable measures (safety valve p ≤ 0.7 MPa, pressure control) to the
maximum permitted pressure.
• Specify the working pressure depending on the flow conditions in the supply and return of
the cooling circuit.
Select the smallest possible pressure difference between the supply and return so that
pumps with a flat characteristic curve can be used.
• Set the required coolant flow rate per time unit according to the technical data of the
equipment and motors.