Panasonic INVERTER NN-A750WB Manual page 18

7. Description of Operating instruction
7.1. Variable power cooking control
The HIGH VOLTAGE INVERTER POWER SUPPLY controls the output power by a signal from the
digital Programmer circuit DPC. The power relay (RY1) turns on to supply power to the inverter
circuit. The level of output power is controlled by the drive signal level form the inverter circuit.
NOTE1: The ON/OFF time ratio does not correspond with the percentage of microwave power
since approximately 2 seconds are required for heating the magnetron filament. / NOTE: 2 If
microwave cooking is over 8 minutes on HIGH power, the fan motor rotates for 1 minute after
cooking to cool the oven and electrical components.
Duty cycles for microwave cooking
Output
High 1000W
Defrost 440W
Medium 600W
Low 440W
Simmer 440W
Warm 440W
7.2. Grill Cooking
The digital programmer circuit controls the grill power by operating the power relay RY4 in the
sequence shown in the table below
Duty cycles for Grill Cooking
Duty ON/OFF
ON time OFF time
22" 0"
16" 6"
22" 0"
22" 0"
15" 7"
8" 14"
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