Winding Resistance Measurement - Grundfos MQ Instrucciones De Instalación Y Funcionamiento

8.3 Winding resistance measurement

Motor
Measuring point
[V/Hz]
A-B (black - red)
115/60
A-C (black - white)
The measurement can be done with or without cables connected to the PCB and the capacitor.
8.3.1 230 V
Electric motor
Yellow
White
Fig. 13 Wiring diagram - 230 V
8.4 Winding resistance measurement
Motor
Measuring point
[V/Hz]
A-B (blue - red)
230/60
A-C (blue - white)
The measurement can be done with or without cables connected to the PCB and the capacitor.
10
Resistance
Winding
[Ω ± 10 %]
Main 1.4
Aux 5.5
Yellow/green (ground)
Black (phase)
White (neutral)
B A
Resistance
Winding
[Ω ± 10 %]
Main 5.4
Aux 5.4
Ambient temperature
[°F]
70
> Cable
Orange Orange
Black
> Flow sensor
Red
> Pressure switch
Ambient temperature
[°F]
70
[°C]
21
[°C]
21