YOKOGAWA UT750 - 3. Operations and Control; 3.1 Monitoring-purpose Operating Displays Available during Operation

<Toc> <3. Operations>
3-1
IM 05D01B02-41E
3. Operations
This chapter describes key entries for operating the controller. For operations using
external contact inputs, see “1.5 Terminal Wiring Diagrams.” If you cannot remem-
ber how to carry out an operation during setting, press the
DISP
key no more than
four times. This brings you to the display (operating display) that appears at power-
on.
3.1 Monitoring-purpose Operating Displays
Available during Operation
The monitoring-purpose operating displays available during operation include those for
single-loop and single-loop position proportional control and those for single-loop heating/
cooling control.
The Process Variable (PV) display always displays the value of PV input.
■ Operating Displays for Single-loop and Single-loop Position Propor-
tional Control
● SP Display
The target setpoint (SP), along with the deviation bar appears on the Setpoint display
(LCD).
● OUT Display
The target setpoint, PID number, and control output value, along with the control output bar
appears on the Setpoint display (LCD).
For position proportional control, the valve opening (0 to 100%) appears instead of the
control output value.
● Deviation Trend Display
The deviation trend appears on the Setpoint display (LCD).
● Data List Display
The target setpoint, control output value, deviation, and PID number appears on the
Setpoint display (LCD).
1st Edition : May 31,2000-00