Dwyer 8600 - Manual (Page 13)

December, 1998 Page 13 949-1277-3
Press INDEX to continue. If Alarm 1 is programmed as an event, then 1A1
will appear. If you wish the Alarm 1 contact to function for this segment, set
1A1 for On. If not, set for OFF. Press INDEX. If Alarm 1 is not programmed
as an event, then 1A1 will not appear. If 1A1 is set to On, the Alarm 1
function will be active for the entire period as set in 1ti above.
If Alarm 2 is programmed as an event, then 1A2 will appear. If you wish the
Alarm 2 contact to function for this segment, set 1A2 for On. If not, set for
OFF. Press INDEX. If Alarm 2 is not programmed as an event, then 1A2
will not appear. If Alarm 2 is not programmed as an event, then 1A2 will
not appear. If 1A2 is set to On, the Alarm 2 function will be active for the
entire period as set in 1ti above.
Complete setting the segment times (2ti ... 16ti), segment set points (2SP
... 16SP), and event alarms (2A1 ... 16A1 and / or 2A2 ... 16A2) if they exist.
For Unneeded or unused segments set the segment times (2ti ... 16ti) to
0, and set the segment set points (2SP ... 16SP) to the same value as the
last active set point. Event alarms may be set to indicate "end of run" as
you feel necessary.
The last menu item for the ramp / soak function is PEnd. PEnd determines
what the control does when the program has ended. You may choose to
have the program repeat (LooP), Hold the last set point (16SP), revert to
the local SP1, or turn the outputs off (OoFF).
It is important to remember that if you want the program to repeat, you must
allow the process to return to the same condition that existed when the
program first started. Remember that the ramp function calculates the
slope by drawing a line from the beginning PV to the ramp target set point.
If the PV at the end of the program is different than the PV at the initial start,
the ramp will calculate differently.
Ramp / Soak Operation
When you wish to start the program, enter the Secondary Menu and set the
Prog menu item to On. Return to the HOME position by waiting for the
display to time out or by pressing the UP ARROW / ENTER keys and then
the DOWN ARROW / INDEX keys.
The home display will read as it normally does. The HOLD indicator over
the RUN / HOLD key will be lit. To start the program press the RUN / HOLD
key. The HOLD indicator will go out, and the program will start.