Addition to the KD48P Manual
The addition can be found in the 3. page at the
d.FrE
menu item.
This supplement contains some useful properties..
The light intensity can be set from half to whole. The half intensity is enough in normal circumstances and the instrument does not
warm over. The whole intensity has to use by daylight.
The band of switching from ramp to Soak may be widened. When the PID parameters are not precisely tuned or the power is very few
then the controller can not reach the Soak temperature and it is switching some degrees under it. This option eliminates the
phenomena, but would be better to use a correct PID parameter set.
7 6 5 4 3 2 1 0 d.FrE
0
The display lights with half intensity
1
The display lights with whole intensity
0
0
±2
±4
±6
±8
Free operation
a. figure
Ramp operation b. figure
Ramp operation c. figure
0
1
1
0
1
1
0
1
0
When setting the ramp value (
°
C/h, or °C/min) you can see the upper point.
***
·
*
.
1
When setting the ramp value (
°
C/h, or °C/min) you can not see the upper point
****
.
1
The actuator can be scaled at YLo and YHi for Solid State Relay Driver (Ssd).
Settings of the actuator
. If
d.FrE
[0]=0 the actuator operates by the Manual. If
d.FrE
[0]=1 and
out
[1]=0 (using relay or, Ssd for the
control) the actuator (
Y
) can be alterable and scalable. The relation between the
Y
value counted by the PID algorithm and value
which appears at the output is the next:
Y
=0%
the output is (e.g. Ssd)
YLo
.
Y
=100% the output is (e.g. Ssd)
YLHi
. But
YLo
<
YHi
relation must be true!
YLo
and
YHi
are set by the Manual and are the endpoints of the actuator scaling..
The controller counts the value for actuator between these two values linearly.
What is this function for? In some system occurs that its power is to much. This option can improve the control properties.
E.g. set
YHi=50
. By this value the actuator gets 50% when the counted value is 100%. It seems if the power had been halved. The
system has changed of course so it must be tuned again.
Important! Please tune the system after every actuator scaling!
Pay attention to the value of YLo!
Because of the lowest value of the
YLo
is the least value for the actuator, it will operate
the system eve it is in OFF state. Be careful when use it! It my be useful for saving a system against frost.
+6
-6
SP for
soak
switching
to soak
Free
a. figure
SP for
soak
switching
to soak
°
C/hour
b. figure
+6
-6
SP for
soak
switching
to soak
°
C/hour
c. figure
