YOKOGAWA UT750, Instruction Manual

Page: 57 / 108

<Toc> <3. Operations>
3-15
IM 05D01B02-41E
■
Manipulating the Control Output during Position Proportional Control
The controller continues to provide control output as long as the or key is being
pressed.
key: Closes the valve.
key: Opens the valve.
OUT display
AL
A/M
PV
REM1
CAS
REM2
MAN1
MAN2
STP
2
4
1
3
PV2
AL
DISP
SET/ENT
0 50 100
1.SP = 100.0 PID:1
OUT = 30.0 %
°
C
MAN1 lamp
ON.
Displays the
valve opening
(0 to 100%).
3.10 Switching between Remote (REM) and Local
(LCL)
The following operating procedure describes an example of switching from Local (LCL) to
remote (REM).
Switching between REM and LCL is possible for only controllers with remote input feature.
●
Local:
Performs control using target setpoints set in the controller.
●
Remote:
Performs control using external analog signals as target setpoints.
SP
PID
PV input Remote input
(analog signal)
Control output
Remote
(REM)
Local
(LCL)
Note: The PID group number when the controller is in remote-mode operation is the same as the number set in the Target
Setpoint Number (SPNO) parameter.
NOTE
If remote status is achieved by external contact input (contact input is ON), switching
between REM and LCL cannot be achieved by keystroke.
1st Edition : May 31,2000-00