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Section VI
Model
DRC-93C
Step
#01
will look as follows.
setpoint
0.0
G a i n
0
STEP
#01
Rate
0
Reset
0
Step#.Command.RAMP
COUNT
0 1 . 3 . 6 0
H e a t e r Power
OFF
Days
-
Hour
00
-
00
Minutes-seconds
00
-
30
Note that the Setpoint, gain, rate,
reset, etc. are part of command
9
setpoint
1 . 0
and
will
be
installed
as
the
Gain
20
parameters
when
normal operation
Rate
0
resumes. Setting the setpoint to
0
R e s e t
10
will remove power to the system as
will setting the Gain to
0
or
The command selected is
3
for
setting the Heater Power to
0 .
Setpoint ramp up.
The
RAMP
COUNT
is
60.
The setpoint will ramp up
6 . 8 . 2
Example
#2
-
Ramp and
Soak
by the amount specified in the Step
#01
setpoint display
every
30
The ramp and soak of Figure
6.1
seconds for
60
times.
will
be
accomplished
in this
It
The setpoint of step
#01
will be
will
be
necessary
to
fix the
set to
1K
to indicate
1K
step up
setpoint at 40K prior to the ramp.
every
30
seconds for a total of
60
Here it will be set to dwell for
10
steps or
60K
in
30
minutes
(1800
minutes.
The entire process is
seconds).
shown in Figure
6.2.
Steps
#4,
#5,
The gain, rate, and reset will
remain constant during the ramp as
specified in Step
#01.
The soak is covered by Step
#02
as
follows.
example with command
5
ramping.
and
#6
are used.
STEP
#02
Days
-
Hours
Step#.cammand.JUMp
VECTOR
0 2 . 1 . 0 3
00
-
01
Minutes
-
seconds
00
-
00
setpoint
100. 0
G a i n
10
Rate
0
Reset
5
Step
# 0 4
will look as follows.
If it is desired to shut down the
controller after the one hour soak,
step
3
will be as follows:
Step
#04
Step#.cammand.JUMPVECTOR
04.1.05
STEP
#03
Days
-
HOURS
00
-
00
minutes
-
seconds
10
-
00
Step#.
command.
03
.
9-00
Days
-
Hours
00
-
00
setpoint
40.0
Minutes-seconds
00
-
00
G a i n
10
Rate
0
R e s e t
10
6-6
COPYRIGHT
12/87
LSCI
100K
Step
#05
Ramp for
30
minutes
4
OK
Step #4,Dwell
10
minutes
Figure
6.2
Example
#2
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