P-band is set in 2
℃
in the heat mode, with a 25
℃
set point and an ambient temperature of 25
℃
, th
modulating output is 0%; at 24
℃
the output is 50%; and at 23
℃
the output is 100%. The intergral
gain implies that the longer the error between the ambient and the set point temperatures exists, the
more the output will change to eliminate the error. The integral portion of the algorithm eliminates th
temperature offset from the set point.
e
e
eat mode (P-band: 2
℃
)
re is below the set point the output is somewhere between 0~100%
ool mode(P-band: 2
℃
)
ure is above the set point the output is somewhere between 0 and 100%
)
set the integral action time for the integral to run from 0 to 100%. The
valu
imum integral portion
ximum modulating output. For example, if you set the maximum
10)
imum modulating output. For example, if you set the maximum
F ure 5
of Output
10V
or
20mA
0%
50%
100%
H
When the ambient temperatu
%
4-
ig
C
When the ambient temperat
8
Select integral action time
This feature allows you to
e required depends on the reaction time of the control loop. If the time is chosen too short, the control
loop will become instable and oscillate. If the time is chosen too long, the control loop will become
sluggish.
9) Select max
This feature allows you to set the ma
integral portion to 80%, the maximum modulating output will be 8V or 16.8mA.
Select minimum integral portion
This feature allows you to set the min
integral portion to 20%, the maximum modulating output will be 2V or 7.2mA.
11)
Display backlight option
0-
+3
+2
+1
Set point
-1
-2
-3
-3
-2
-1
Set point
+1
+2
+3
100%
50%
0%
% of Output
0-10V
or
4-20mA
Figure 6
7
Содержание ONX908PIT-V1-S1-F3/B
Страница 1: ......
