YOKOGAWA UT520 User Manual

<Toc> < 3. Operations >
3-11
IM 05D01C02-41E 3rd Edition: May 31, 2006-00
■ 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
SET/ENT
A/M
PV
AL1 2 3 4
MAN
REM
MAN lamp ON.
Displays the
valve opening
(0 to 100%).
Note : The output high limit (OH) and output low limit (OL) do not restrict the manual output
of position proportional control.
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.
● Local:
Performs control using target setpoints set in the controller.
● Remote:
Performs control using external analog signals as target setpoints.
Note: The PID group number when the controller is in Remote operation is the same as the number set in the Target Setpoint
Number (SPN) parameter.
NOTE
If Remote state is achieved by external contact input (contact input is ON), switching
between REM and LCL cannot be achieved by keystroke.
SP
PID
PV input Remote input
(analog signal)
Control output
Remote
(REM)
Local
(LCL)

YOKOGAWA UT520 Specifications

General

Brand	YOKOGAWA
Model	UT520
Category	Controller
Language	English