YOKOGAWA UP750, User Manual

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<Toc> <4. Operations>
4-1
IM 05E01B02-41E
4. 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.
4.1 Monitoring-purpose Operating Displays
Available during Operation
The monitoring-purpose operating displays available during operation include those for
single-loop control and those for single-loop heating/cooling control.
The Process Variable (PV) display always shows the value of PV input.
■
Operating Displays for Single-loop Control
●
Setpoint Display
On the Setpoint display (LCD), the controller displays the current target setpoint (SP), the
program pattern number (PTNO) selected, the segment number (SEGNO) for which
operation is in progress, the number of segments included in the selected program pattern,
the remaining time of the segment for which operation is in progress, the current number of
repetitions (RCY), and the total sum of repetitions.
●
Target SP Display
On the Target display (LCD), the controller displays the current target setpoint (SP) and
final target setpoint (TSP), the program pattern number (PTNO) selected, the segment
number (SEGNO) for which operation is progress, the number of segments included in the
selected program pattern, the program pattern name (Only displayed when setting the
program pattern name using an optional parameter setting tool (model: LL100-E10)).
●
OUT Display
On the Setpoint display (LCD), the controller displays the current target setpoint (SP), the
PID number (PID) being used, the program pattern number (PTNO), the segment number
(SEGNO) for which operation is in progress, and the number of segments included in the
selected program pattern.
●
Deviation Trend Display
On the Setpoint display (LCD), the controller displays the deviation trend.
●
Pattern Display
On the Setpoint display (LCD), the controller displays the selected program pattern.
1st Edition : May 31,2000-00