Electrolux EWX11831 - Three-phase Motor and Inverter Characteristics

Technical Support - MDM 53/104 599 77 39-16 Rev. 00
11.9 Three-phase asynchronous motor – Inverter
11.9.1 General characteristics
1 Main electronic circuit board
2 Door safety interlock
9. Inverter
10. Motor
11.9.2 Power supply to motor
Three-phase power is fed by the inverter (10), which sends through the connectors J2-2 J2-3 J2-4 the three
phases to connectors 1-2-3 on the motor (nodes U-W-V), where the windings (Y-X-Z-) are connected.
The phase shift between the phases is 120° and peak amplitude is 310 V.
It is possible to get an idea of the efficiency of the
motor by measuring the resistance of the coils:
Coil y ohm 5.35
 ±7% (contacts 2-3)
Coil x ohm 5.35
 ±7% (contacts 1-2)
Coil z ohm 5.35
 ±7% (contacts 1-3)
In the event of a fault an alarm will be displayed - see table of alarms.