63
8.2.4 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 ‘AT/Auto-reset’.
Character
Name, Function, Setting Range
Factory Default
AT/Auto-reset
• Selects AT Perform/Cancel (PID control) or
Auto-reset Perform/Cancel (P, 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 are changed after AT
is finished.
• If the AT is cancelled during the process, P, I, D and ARW values
revert 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.
•
: AT/Auto-reset Cancel
/
: AT/Auto-reset Perform
If AT/Auto-reset Perform is selected, and the
key is pressed,
the unit reverts to PV/SV Display Mode.
AT bias
20
• Sets bias value for the AT.
Refer to “11. AT” on pages 73, 74.
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 )
