YOKOGAWA UP750, User Manual

Page: 61 / 130

<Toc> <3. Programming>
3-25
IM 05E01B02-41E
<Controller Settings>
Setpoint of TMU (Program Time Unit) Setup Parameter
When changing the setpoint linearly over an hour
hh:mm (factory-set default)
When changing the setpoint linearly over a minute
mm:ss
Note: The “Program Time Unit (TMU)” parameter is the time unit you use when creating programs.
When creating a soak segment during programming, set a time (“hour and minute” or
“minute and second”) rather than a ramp grade.
Final target
setpoint
Time
Setpoint
Final target setpoint set for
segment immediately preceding
or the starting target setpoint
if this is the point of starting
program operation
Segment time
Define as
“hour and minute” or
“minute and second.”
For example, configure segment 1 so the temperature rises in increments of 5
⬚
C per
minute from 50
⬚
C to 100
⬚
C, as shown in the figure below.
Final target
setpoint
Time
Setpoint
100
°
C
50
°
C
Ramp upgrade of
5
°
C per minute
Segment 1
To change the temperature linearly over a minute, set the TMU parameter to “mm:ss”
(minute and second) before you begin programming.
When programming the controller, set the Segment Time (TIME) parameter for segment 1
to 5
⬚
C.
This allows the controller to raise the setpoint in increments of 5
⬚
C per minute during the
interval of segment 1.
1st Edition : May 31,2000-00