Omron E5AK-AA2-500 Manual page 22

E5 K
Startup Conditions of DT
1. DT will start if the temperature that has been stable varies
due to external disturbance and the deflection of the temper-
ature exceeds the stable range, and then the temperature
becomes stable, provided that the number of maximum tem-
perature values is less than four.
2. DT will start if the set point is changed under the condition
that SRT does not start and the temperature becomes stable,
provided that the number of maximum temperature values is
less than four.
If there are four or more maximum temperature values, HT
will start.
Extreme value 2
Temperature
SP
Extreme value 1
Balanced Status
If the process value is within the stable range for 60 s when there
is no output, it is deemed that the the temperature is balanced.
Set point change
Startup Conditions of HT
HT will be ON when there is hunting with four or more maximum
temperature values (extreme values) while SRT is not being
executed.
Extreme value 2
Temperature
SP
Extreme Extreme
value 1 value 3
Time
Note: In specific applications where temperature varies periodi-
cally due to disturbance, internal parameters need to be
adjusted. For details, refer to your User's Manual.
E5 K
Extreme value 4