Fri-Jado BS10i, Руководство по обслуживанию

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Electrical tests
Page 27 Page 27
Service Manual Bake Star intelligent
PKII
form 9123665 rev. 06/2013
140Ω
100Ω
Blue
Brown
Black
Grey
Blue Br
own
Black Gr
ey
Passive measurements
The blower motor has 2 separate coils. The-
refore 4 wires come out. A 4 core cable con-
nects the motor with the plug.
The main coil , 100 Ω, is connected to pin
1 and 2 from the plug. This is the grey and
black wire.
The start coil, 140 Ω, is connected to pin 3
and 4. This is the brown and blue wire.
Note that some motors can have a 120Ω and
160Ω coil.
Important is the insulation between the 2
coils and also between the coils and earth.
Active measurements.
Measure between the grey and black wire
on one of the blowers. Since they are all con-
nected together, it does not matter which
one you measure.
The Voltages have to be measured in all 5
different speeds. The shown values can be
expected at a 230V~ supply voltage.
Speed 5 215V~
Speed 4 205V~
Speed 3 190V~
Speed 2 170V~
Speed 1 145V~
Note 1) In case of a 200V unit (Japan), a
transformer is built in to boost up the volta-
ge in order to get the same speed voltages.
Note 2) The blue wires can sometimes almost
be grey. Measure the resistance in case of
doubt!
500V
!
Insulation test
∞
Ω
500V
!
Insulation test
∞
Ω
500V
!
Insulation test
∞
Ω
±100Ω
Blue Brown Black Grey
Fan
±140Ω
Blue Brown Black Grey
Fan