P.52
2) Take off the filter cover and check whether the
impeller is blocked, clean up it and then
assemble it.
6. Filter
In order to decrease the inter-interference
between the washing machine and the power
grid, L2 and the power grid’s L connector, N4 and
the power grid’s n connector, U1 and washing
machine’s L connector, U3 and washing machine’s
N connector.
Filter parameters as follows:
0.68M +2×1mH+0.47 F+2×0.1μF
7. Series motor
The motor’s rotate is controlled by SCR, the
bigger of the through angle is the higher of its
voltage and motor’s speed are, or else,
diminishing the through angle can reduce
the motor’s speed.
The motor’s turning is controlled by two relays,
when 5 and 8 connector, 9 and 10 supply power,
it is clockwise from the shaft direction, when 5
and 9 connect, 8 and 10 supply power, it is
anticlockwise then.
The speed-measuring facility in the motor
transform the speed into impulse number
which was provided to the PCB panel (the higher
of the rotate speed, the more of the impulse is), the
PCB panel control the motor’s speed through SCR.
The methods of testing motor:
1) When the resistance between 6 and 7 is infinite,
the motor appears heat protection, when 6 and 7
is always cut, the motor should be replaced.
2) If the resistance between 5 and 10 or 8 and 9 is
infinite, the motor should be replaced.
Ω μ
Heat protecter
Speed tester
6.TROUBLESHOOTING
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