Panasonic AFPE224300 User Manual page 78

- (4) Heater PWM control sample program
Sample program
Setting the input timing
Set the input timings as shown below so that the temperature conversion cycle (250 ms for FP-
e), PID control cycle (DT209) and PWM output cycle (TM0) are all equal, or PID control cycle
takes longer than other two cycles.
Correct:
⋅ Tad = Tpid = Tout
⋅ Tad < Tpid > Tout
Incorrect:
⋅ Tad > Tpid < Tout
8-10
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Program
DT203 : PID processing output
SV1 : Heating time setting
Heater control depending on PID processing result.
To turn the heater ON (100 %) when the PID
processing output DT203 is 100 % (K10000), divide
the PID processing output DT203 (K10000) by 10 and
write 100 % (1000 ms) into SV1 of heating timer.
TML0 : PWM output cycle setting
TML1 : Heating time setting
Y0 : Heater control