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9-3. RESET CIRCUIT PART
9-4. SENSING OF TEMP PART
RESET circuit part is performed the eariy state all
program furction when input power and confimate
power to MICOM for suddeniy electricity failure, it is
initialed to PAM of inside MICOM. when confimate
power RESET’S vltg is “LOW”state during
sevweal tens uses and it is “HIGH”state as nomal
operation state.
1) SENSOR is vsing the THER with labor coefficint, if temp. is high, resistance is low on the contrary if temp.
is iow, reissitarce is high.
2) According to sensor, voltage of input to MICOM is calculate,
SENSOR OPEN SENSOR SHORT
Inpat MICOM“HIGH” Inpat MICOM “LOW”
X Vcc(Vcc:5V, Rth:SENSOR RESISTANCW)
Rth
Rth + 10㏀
Vf =