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13-3
▶ Function
Controls each driving system (VALVE, DOOR S/W, DRAIN-MOTOR) by turning RELAY or
TRIAC on/off.
▶ Description
- MICOM outputs a high signal of 5V from pin # 1 - 7 of IC7 and IC9.
- Then, pin # 10 to 16 of IC7 and IC9 are electrically grounded (0V).
- When pin # 10 to 16 are grounded, this creates an electric potential difference from
the 12V that turns on RELAY 5,6,7 and TRIAC2,3,4,5.
- The operating parts (VALVE, DRAIN-MOTOR, DOOR S/W) connected to CN9 turn on if
they are supplied with power.
13-3. Driving System Circuit