Start Your Program; Helpful Hints; Halt Conditions - Watlow Ramping and Profiling Microprocessor-Based Control SERIES 1500 User Manual

CAUTION:
now
You have a
basic under-
standlng of how
the Series 1500
handles a control
program. Please
read and then
continue to refer
to the following
fine points. The

"Helpful Hints"

sectlon will raise
your skills with
the Series 1500
to the highest
level.
22
Almost Ready to Run
Remember that Step #1 was a "Wait Step." Even though you press the "RUN" key,
any action until the time you programmed into Step #1.
you won't see
to go
You may want back and
ways to get back to Step #1 in CHG DATA mode. Your display is now reading "08 NX
0009"; it is waiting for you to continue programming or monitoring. Use the DOWN
key to put "0001" in the Data display and press ENTER. The display will show "01 WI"
Wait Step). Now use the FCTN key
(Step#l is a
"SC;" enter a time real time1 0 minutes from now.

Start Your Program!

The Wonderful Apple Pie
(upper
"RE-START' key
"RUN/HALT' key to start the program.
Monitoring the Action
With the MNTR DATA LED lit, you can now use the FCTN key to check things out.
The control doesn't seem to show much happening right now since Step #1 is a "Wait
Step." Press the FCTN key.
programmed into Step
#1. The
programmed time.
Now use the MODE key to move to the CHG PARA mode with the TlME LED also ON.
You can watch as real time approaches your programmed time. When the times
number changes to
match, the step
lights come ON to coincide with the
As program runs its course, you can use the
the
key to view the process. As you observe the varying data, the individual functions will
become quite clear. After you have observed the program for awhile, read the
following information to gain an even more detailed understanding.
Helpful Hints
Here are some Series 1500 fine points:

Halt Conditions

A Blank Step halts the Series 1500. A "Blank Step" is any step which is not
A.
programmed. An "SP" will appear in the Function Display when you select
a Blank Step with the MODE key.
The Series 1500 can enter the HALT condition in two ways: It encounters a
B.
Blank Step in a program, or you press the RUN/HALT key while a program
is running.
adjust that time to a different value. There are various
Sample Program
is all entered and ready. So press the
front panel) to set the program to Step #1. Then press the
In one display you'll see the "WT" (Wait for) time you
1500 watching for its real time to match that
is
02. You will also see the Ch-1 and Ch-2 Event
Events you programmed
to move through "HR," "MN," and
for Step #2.
MNTR DATA mode and the FCTN
Sample Program, Chapter
2