Wolf MWD24-2, Руководство по обслуживанию

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Drawer Microwave
(Models MWD24-2 / MWD30-2)
Theory of Operation
3-20
#813632 - Revision B - December, 2009
Pin No.
47
48-52
53
54
55
56
57
P05
P04-P00
P57
P56
TXD1
RXD1
P53
OUT
OUT
OUT
IN
IN
IN
IN
Magnetron High-Voltage Circuit Driving Signal: To turn on and off cook relay
(RY2), in 100% power operation, the signals holds “H” level during microwave cook-
ing and “L” level while not cooking. In other cooking modes (90%, 80%, 70%, 60%,
50%, 40%, 30%, 20%, 10%, 0%) the signal turns to “H” level and “L” level in repeti-
tion according to power level.
Used for initial balancing of the bridge circuit (absolute humidity sensor).
Common Relay Driving Signal
(Square Waveform : 60Hz):
To turn
on and off the shut-off relays (RY1).
The square waveform voltage is deliv-
ered to the relay (RY1) driving circuit.
Terminal not used.
Terminal not used.
Terminal not used.
Terminal not used.
Signal I/O Description
Microwave Cooking Mode Other Cooking Mode
Vari Mode On Time Off Time On Time Off Time
100% power 32 sec. 0 sec. 60 sec. 0 sec.
90% power 30 sec. 2 sec. 54 sec. 6 sec.
80% power 26 sec. 6 sec. 48 sec. 12 sec.
70% power 24 sec. 8 sec. 42 sec. 18 sec.
60% power 22 sec. 10 sec. 36 sec. 24 sec.
50% power 18 sec. 14 sec. 30 sec. 30 sec.
40% power 16 sec. 16 sec. 24 sec. 36 sec.
30% power 12 sec. 20 sec. 18 sec. 42 sec.
20% power 8 sec. 24 sec. 12 sec. 48 sec.
10% power 6 sec. 26 sec. 4 sec. 56 sec.
0% power 0 sec. 32 sec. 0 sec. 60 sec.
During cooking
L: GND
H: +5V
16.7 msec.