Panasonic NN-8508 - Page 13

NN-8508, NN-8558
NN-8808, NN-8858
6.
Combination
cooking
control
Combination
cooking
is
accomplished
by
operating
the
microwave
and
heater
mode
alternately
during
one
combination
cooking
cycle.
One
combination
cooking
cycle
is
47
seconds.
-s
(A)
The
digital
prograrnmer
circuit
generates
the
power
relay
B,
C,
D
and
E
control
signals
at
a
specific
timing
as
shown
in
Fig.
12.
(B)
When
the
oven
ternperature
reaches
the
predetermined
temperature,
the
digital
programmer
circuit
stops
supplying
power
relay
C
and
D
control
signals
resulting
in
both
upper
and
lower
heaters
to
turn
off.
During
this,
digital
programmer
circuit
continues
supplying
power
re-
lay
B
and
power
relay
E
control
signals
so
that
microwave
and
fan
motor
activity
continues
at
predetermined
duty
ratio
as
shown
in
Fig.
12.
The
microwave
and
fan
motor
activity
continues
to
cycle
until
en-
tire
cooking
programme
is
completed.
(C)
When
the
oven
temperature
drops
below
the
predetermined
temper-
ature,
the
digital
programmer
circuit
generates
power
relay
C
and
D
control
signals
again
at
the
timing
predetermined.
NOTE:
The
power
relays
B,
C
and
D
do
not
tum
on
at
the
same
time.
Any
of
two
power
relays
of
them
should
be
always
off
so
that
in-
put
current
always
remains
within
allowable
main
current
(15A).
NN-8808P
Combination
Cooking
(When
combination
category
1
is
selected.)
START
OVEN TEMP
UPPER HEATER
(POWER RELAY C)
1
LOWER HEATER Lipeee
(POWER RELAY D)
FAN MOTOR
(POWER RELAY E)
MICROWAVE
(POWER RELAY B)
NOTE: ON-OFF time of upper heater, lower heater and microwave
vary depending on the selected combination category.
7.
Auto
weight
combination
cooking
control
When
the
Auto
Weight
Control,
Combination
Cooking
feature
is
selected
by
tapping
the
appropriate
key
pads
and
Start
pad
is
tapped.
(A)
The
digital
programmer
circuit
determines
the
power
level,
oven
temperature
and
combination
cooking
time
to
complete
combination
cooking
and
indicates
the
operating
state
in
the
display
window.
Fig.
13
shows
the
combination
cooking
times
for
respective
weights
by
categories.
(B)
When
the
combination
cooking
time
in
the
display
window
has
elapsed,
the
oven
turns
off
automatically
by
the
controlled
signal
from
the
digital
programmer
circuit.
Auto Weight Combination
SELECTED CATEGORY 1
Fig. 13