Description Of Operating Sequence; Variable Power Cooking Control; Autoweight Defrost, Autoweight Cook - Panasonic NN-T559WB Service Manual

4.

DESCRIPTION OF OPERATING SEQUENCE

4.1 Variable power cooking control

HIGH VOLTAGE INVERTER POWER SUPPLY (U) controls
output power by a signal from Digital Programmer Circuit (DPC).
Power relay 1 stays on to supply power to the inverter circuit.
The outpower is controlled by the drive signal level from the
inverter circuit.
NOTE 1: The ON/OFF time ratio does not correspond with
the percentage of microwave power since approximately 2
seconds are required for heating of magnetron filament.
NOTE 2: If microwave cooking is over 8 minutes with HIGH
power, fan motor rotates for 1 minute after cooking to cool
oven and electric components.

4.2 Autoweight defrost, autoweight cook

When those auto control feature is selected and Start pad is
pressed:
1. The digital programmer circuit determines the power level
and cooking time to complete cooking and indicates the
operating state in the display. The table shows the
corresponding cooking times for respective weight by
categories.
2. When cooking time in the display window has elapsed, the
oven turns off automatically by the controlled signal from the
digital programmer circuit.
NOTE: After one touch menu and auto reheat cooking, fan
motor rotates for 1 minute to cool oven and electric
components.
VARIABLE POWER COOKING
POWER OUTPUT
SETTING POWER
APPROX.
HIGH 900W
DEFROST 270W
MEDIUM 600W
LOW 440W
SIMMER 250W
WARM 100W
AUTOWEIGHT DEFROST
CATEGORY
BREAD
MEAT ITEMS
MEAT JOINTS
AUTOWEIGHT COOK
CATEGORY
CHILLED MEAL
FROZEN MEAL
FRESH VEG
FRESH FISH
JACKET POTATOES
BOILED POTATOES
8
RY-1 INVERTER
CONTROL
SIGNAL
stay ON stay ON
stay ON ON/OFF
stay ON stay ON
stay ON stay ON
stay ON ON/OFF
stay ON ON/OFF
WEIGHT COOKING TIME
100g 50 seconds
200g 3 mins
400g 6 mins 20 secs
WEIGHT COOKING TIME
300g 3 mins 45 secs
300g 7 mins
100g 2 mins 20 secs
100g 1 min 10 secs
200g 4 mins 30 secs
200g 4 mins