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7.2.4 AT Group
AT/Auto-reset Perform/Cancel, AT bias can be set in this group.
AT group is common to Fixed value control and program control.
During ON/OFF control or PI control, the unit cannot proceed to any setting items in
this group.
If PID zone function “Used” is selected, and if control action of the PID zone number
(used for control) is ON/OFF or PI, the unit cannot proceed to any setting items in this
group.
To enter the AT group, follow the procedure below.
(1)
Press the
key 3 times in PV/SV Display Mode.
The unit proceeds to the AT group.
(2)
Press the
key.
The unit proceeds to the ‘AT/Auto-reset’.
Character
Setting Item, Function, Setting Range
Factory Default
AT/Auto-reset
• Selects AT Perform/Cancel in PID control, or
Auto-reset Perform/Cancel in P control or PD control.
• If PID zone function “Used” is selected, values such as P, I, D, ARW of
the PID block number (which are used for control) will be changed
after AT is finished.
• If AT is cancelled during the process, P, I, D and ARW values return
to the values before AT was performed.
• AT will be forced to stop if it has not been completed within 4 hours.
•
Auto-reset is cancelled in approximately 4 minutes. It cannot be
released while performing this function.
Auto-reset value will be calculated within the manual reset setting
range.
•
: AT/Auto-reset Cancel
/
: AT/Auto-reset Perform
If “AT/Auto-reset Perform” is selected, and if the
key is
pressed, the unit will return to PV/SV Display Mode.
AT bias
20
• Sets bias value for the AT.
Refer to Section “10. AT” on pages 79, 80.
Not available for DC voltage, current inputs.
• Setting range: 0 to 50 (0 to 100 )
With a decimal point: 0.0 to 50.0 (0.0 to 100.0 )