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8.3 Switching Auto/Manual Control
By pressing the
key in PV/SV Display Mode, Auto/Manual control can be switched.
If control action is switched from automatic to manual and vice versa, balanceless-
bumpless function works to prevent a sudden change of MV.
When automatic control is switched to manual control, the MEMO/STEP Display
indicates [ ].
The MV can be increased or decreased by pressing the
or
key to perform
the control.
By pressing the
key again, the unit reverts to PV/SV Display Mode (automatic
control).
Whenever the power to the controller is turned on, automatic control starts.
Switching from Automatic to Manual control, and vice versa
PV/SV Display Mode
(Automatic control)
Manual control
Increases or decreases
MV with the
or
key.
8.4 Indicating MV and Remaining Step Time (Program Control)
To indicate MV, press the
key for approximately 3 seconds in PV/SV Display
Mode. The SV/MV/TIME Display indicates the output MV, and the MEMO/STEP
Display indicates [ ].
SV and TIME of the SV/MV/TIME indicator are unlit, and MV of the SV/MV/TIME indicator
lights.
If the
key is pressed again during Fixed value control, the unit will revert to
PV/SV Display Mode.
If the
key is pressed during program control, remaining step time is indicated on
the SV/MV/TIME Display. SV and MV of the SV/MV/TIME indicator are unlit, and TIME of
the SV/MV/TIME indicator lights.
By pressing the
key again, the unit reverts to PV/SV Display Mode.
During Fixed value control
:
PV/SV Display Mode
(Automatic control)
key (3 sec)
key
Output MV
indication
8.5 AT/Auto-reset Perform, AT Cancel
In order to set each value of P, I, D and ARW automatically, the AT process should
be made to fluctuate to obtain an optimal value. [See Section “10. AT” (pp. 79, 80.)]
‘AT/Auto-reset Perform’ and ‘AT Cancel’ can be set in [AT/Auto-reset] in AT group.
Auto-reset can be performed when the unit is in P or PD control action. [See Section
“9. Auto-reset” (p.78.)]
Auto-reset ends 4 minutes after starting. It cannot be released while performing this
function.
key
