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MICOM function and circuit description
5-2-7. Stepping motor operation circuit (3-way valve)
u The motor is operated by sending out "High" and "Low" signals as many as the designated number of steps through
MICOM Pin 44, 43, 46, 45 (lid part) and 48, 47, 50, 49 (drawer part) to rotate the motor through the magnetic field formed
by the motor and the coil wrapped around each stator.
5-2-8. Power failure compensation circuit (located on display PCB)
uThe power failure compensation circuit recalls the temperature range of the right and left compartment for lid and drawer,
and maintains these levels if power if interrupted briefly.
The IC for power failure compensation (EEPROM) delivers to and maintains the information in MICOM through the serial
interface.
L L E E D D M M O O D D U U L L E E T T Y Y P P E E
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