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Using the electric machine for other purposes than de ned in this manual.
Disregarding the obligation to comply with the manual, safety signs and rating plate of the
electric machine.
Using the electric machine, making adjustments and maintenance without rst reading
this manual.
Exceeding the designed limits during the electric machine operation.
Using non-original service parts of wrong material causing corrosion problems and mechanical
failures in time.
Operating and performing maintenance for the electric machine without appropriate personal
protective equipment.
Using electric machine parts like frame or rotor for climbing or for support for other structures.
Causing any kind of impact forces to the electric machine (for example hitting or hammering
or dropping objects).
Operating the electric machine with electric connections other than de ned in the manual
and/or other documents.
Operating the electric machine with insufficiently tightened connections or cable glands.
Operating the electric machine with power cables routed against the instructions.
Operating the electric machine without properly dimensioned and operating cooling system.
Touching the connection terminal of the electric machine or doing maintenance or adjustment
operations on the electric machine with the electricity connected.
Touching the connection terminal if the rotor can be turned by an external prime mover.
Lifting the electric machine from wrong lifting points and without correct lifting equipment.
Lifting additional load with the machine.
Storing the electric machine outdoors in wet or dusty conditions.
Storing the electric machine without correct support to prevent rolling or falling of the
machines.
Using the electric machine in potentially explosive environment.
Allowing dirt or liquid to enter into the electric machine or connection box.
Using cables that cannot withstand the maximum currents of the electric machine .
Used technology
This electric machine is a Syncronous Reluctance assisted Permanent Magnet (SRPM) machine.
This technology has several bene ts compared to standard permanent magnet (PM) technology
and traditional induction machine (IM) technology. The SRPM technology combines the bene ts
of PM and Syncronous Reluctance technology, having increased torque capability over wide speed
range and ability to produce torque to higher speeds. The machine efficiency at lower speeds is
also good.
The supply current to the stator windings create rotating magnetic eld, which in turn rotates the
rotor containing permanent magnets. In the syncronous permanent magnet machine, the rotation
of the rotor (shaft) is syncronized with the frequency of the power supply current. The reluctance
technology maximizes the pull-out torque of the machine.
The permanent magnets of the rotor are of salient-pole design, having embedded permanent
magnets in the rotor structure. This structure makes the machine mechanically more stable and
capable of higher speed operations. See Figure below illustrating the magnet topology of the
electric machine. The gure shows the principle only, and is not an exact illustration of the
structure.
EM-PME375
3. Product overview
| BC265857345808en-000101
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Danfoss | Produced By: Danfoss Power Solutions | July 2019 | 11
Summary of Contents for EM-PME375 Series
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