E5
j
J
E5
j
J
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
Extreme value 4
Extreme
value 1
Extreme
value 3
Temperature
Time
SP
Note:
In specific applications where temperature varies periodi-
cally due to disturbance, internal parameters need to be ad-
justed. For details, refer to
E5
j
J Operation Manual.
Auto-tuning
Starting Auto-tuning
Auto-tuning can be started by using the following procedure. Use
this procedure when appropriate results are not achieved via fuzzy
self-tuning.
1. Turn ON pin 3 of the function selector switch to select the
2-PID control mode (refer to
page
8).
2. Press the Level Key and the Display Key simultaneously for
1 s or longer to start auto-tuning.
Conditions that Prevent Auto-tuning
You will not be able to start auto-tuning when any of the following
conditions exist.
•
When the control mode is set for ON/OFF control or 2-PID
control with fuzzy self-tuning.
•
When an engineering level parameter is displayed.
•
When the key protection switch is set to SP or ALL.
•
When the remote/local setting is set to remote.
•
When the RUN/STOP setting is set to STOP.
•
When a sensor error, memory error, or A/D converter error has
occurred.
Force-ending Auto-tuning
Auto-tuning will be forced to end for any of the following conditions.
•
When the Temperature Controller is turned off.
•
When the RUN/STOP setting is changed to STOP.
•
When a sensor error occurs.
•
When the Level Key and the Display Key are pressed
simultaneously for 1 s or longer.
Changing Parameters during Auto-tuning
•
Parameters cannot be changed during auto-tuning, but the
remote/local setting can be changed.
•
The SP also cannot be changed via the event input during
auto-tuning, but the event input status can be changed and the
SP will be changed after auto-tuning has been completed.
Set point
Auto-tuning
Auto-tuning started.
Scale changes disabled here.
Event input
terminal
Open
SP0 selected.
Shorted
SP1 selected.
SP0
SP1
Summary of Contents for E5 J Series
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