YOKOGAWA UT55A - Page 299

12-2
IM 05P01C31-01EN
SwitchtoMAN(MAN)
The mode can be switched to MAN using contact input. (Switch by the rising edge)
Contact status Operation Remark
OFF→ON Switch to MAN –
ON→OFF Maintains the current operation status –
SwitchtoREMOTE(REM)
The mode can be switched to REMOTE using contact input. (Switch by the rising edge)
Contact status Operation Remark
OFF→ON Switch to REMOTE –
ON→OFF Maintains the current operation status –
In Cascade control, the LP2 lamp is lit while the Loop-2 parameter is displayed.
SwitchtoLOCAL(LCL)
The mode can be switched to LOCAL using contact input. (Switch by the rising edge)
Contact status Operation Remark
OFF→ON Switch to LOCAL –
ON→OFF Maintains the current operation status –
In Cascade control, the LP2 lamp is lit while the Loop-2 parameter is displayed.
Auto-tuningSTART/STOPSwitch(AT)
Auto-tuning START/STOP can be switched using contact input.
Auto-tuning is executed to the PID group currently specified. (Switch by the rising edge
and the falling edge)
Contact status Operation Remark
OFF→ON Starts auto-tuning –
ON→OFF Stops auto-tuning –
OutputTrackingSwitch(TRK)
Output tracking can be switched using contact input. (Status switch)
Contact status Operation Remark
ON Turns the output tracking on –
OFF Turns the output tracking off –
Can be used in Cascade primary-loop control or Loop control for backup.
PVSwitch(SW)
TwoPVinputscanbeswitchedusingcontactinput.(Statusswitch)
Contact status Operation Remark
ON Switches to input 2 –
OFF Switches to input 1 –
CanbeusedinLoopcontrolwithPVswitching.
12.1 Setting Contact Input Function