3
PROGRAMS
3.1
SELECTING AND RUNNING A PROGRAM
With no program running, the Digital Controller Programmer is in Base Mode and
the
RUN
and
HLD
indicators are OFF. In this mode, select a program as follows:
1. Hold down the
PROG
key un til the re quired pro gram number is
dis played.
2. Press the Run/Hold key once to start the pro gram. The
RUN
in di ca tor will
then go ON; the instrument is now in Pro gram Run Mode.
3.2
CHANGING THE PROGRAM TIMEBASE
Whilst a program is running, the normal timebase is hours/minutes. To change to a
timebase of minutes/seconds (i.e. select the x60 facility), press the Up key for more
than five seconds, whereupon the
x60
indicator will go ON. To cancel operation
on the x60 timebase, press the Down key for more than five seconds, whereupon
the
x60
indicator will go OFF.
3.3
HOLDING A PROGRAM MANUALLY
You may hold or freeze a program by momentarily pressing the Run/Hold key. The
HLD
indicator will then go ON (the
RUN
indicator staying ON) and the program
will stop execution. The program may subsequently be restarted by momentarily
pressing the Run/Hold key again.
HLD
INDICATOR FLASHING: If, before the operator holds the program
manually, the
HLD
indicator starts flashing, this indicates that the program
is currently subject to a Guaranteed Soak (see Subsection 8.3). If the
Run/Hold key is pressed (for a manual Hold), the
HLD
indicator will go ON
continuously. When the operator removes the manual Hold (by pressing the
Run/Hold key again), the
HLD
indicator will either flash (indicating that the
Guaranteed Soak conditions still prevail) or go OFF (indicating that the
Guaranteed Soak conditions no longer exist).
RUN
INDICATOR FLASHING: This indicates that the program is in a Delay
state i.e. is timed to start after a user-defined delay has elapsed. When the
delay period has elapsed, the program will run and the
RUN
indicator will
come on continuously.
3-1
Содержание dcp100t
Страница 1: ...EN1I 6240 ...
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Страница 10: ...2 3 DISPLAYS 2 3 Figure 2 2 Front Panel Displays ...
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Страница 33: ...9 7 Figure 9 1 Proportional Band and Deadband Overlap ...
Страница 34: ...9 8 Figure 9 2 Alarm Operation ...
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