Combination Cooking - Panasonic NN-C784MF Service Manual

NN-C784MF
2.8.

Combination Cooking

Combination cooking is accomplished by microwave and
convection cooking being done alternately during one
combination cooking cycle. One combination cooking cycle is
22 seconds.
1. During combination cooking, the digital programmer circuit
controls ON-OFF time of both power relay RY1 and RY4 as
shown in Figure.
2. When the power relay 1 (RY1) is turned on, heater turns off
and after the power relay RY1 turns off, power relay RY4
turns on.
COMBINATION
CATEGORY
1
2
3
NOTE:
1. Note that the heater may not be on during a heater on
period if the preprogrammed oven temperature has
been reached. This is due to the fact that the oven is
keeping the
constant, so of course the heater will only be on when it
is needed and off when it is not needed.
2. As for temperatures of combination cooking for
convection, the temperatures by each program are
preprogrammed in the microprocessor as shown in
Figure.
MICROWAVE (RY1)
DUTY ON (Sec.) DUTY OFF (Sec.)
8
5
12
preprogrammed oven temperature
14
17
10
8