Danfoss EM-PME375 Series, Руководство пользователя

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Condition monitoring during operation
Supervising the electric machine correctly during the operation ensures reliable operation and designed lifetime.
If you notice any deviations from the normal operation, for example elevated temperatures, noise or vibration, stop the
electric machine. Find the reason for the deviation and repair the electric machine. Refer to Chapter 9 Troubleshooting.
The maximum allowed winding temperature of the electric machine is shown in the rating plate and in the data sheet.
Recommended coolants
Use correct personal protective equipment when you handle the coolant.
Ethylene glycol is a toxic compound. Avoid exposure to the coolant.
Other options:
Propylene glycol based coolants, like Splash® RV&Marine antifreeze.
Ethylene glycol based Glysantin® G48® (includes also corrosion inhibitors).
Emergency operation
The electric machine should be operated within the operation limits and in the conditions
speci ed by the manufacturer. However, it can be limitedly used in the following fault/ emergency
situations.
Cooling of the electric machine fails
The cooling system failure can be caused by dregs (sediment) accumulating to the cooling system
tubes. Try opening the possible blockage by changing the coolant ow direction. See also Chapter
Cooling system maintenance .
If the cooling of the electric machine fails, limited operation is still possible with no coolant ow.
The operation speed must be limited to half (1/2) of the rated speed and maximum 20 % of the
nominal torque may be used. In such case, the electric machine may be operated for maximum
one hour. Repair the cooling system as soon as possible. For further information, contact
Danfoss representative.
The temperature measurement of the electric machine fails
Contact the Danfoss service.
EM-PME375
7. Operation
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©
Danfoss | Produced By: Danfoss Power Solutions | July 2019
| BC265857345808en-000101