Lauda E 4 G - E.1 Programming example

ECO GOLD
94 Appendix with settings 25/08/2011/ YACE0088
E.1 Programming example
The graph shows as an example the reprogram-
ming of a set-point temperature trace.
(Cooling time dependent on device type, consumer,
etc.)
Example Seg. No. 2:
· "reach 50 °C within 20 minutes"
before (
____
)
No. T
end
hh mm Tol.
Pump
S1 S2 S3
Start
30.00 -- -- 0.1 2
off off off
2 50.00 0 20 0.0 2
off off off
3 70.00 0 40 0.0 3
off off off
4 70.00 0 10 0.1 4
off off off
5 60.00 0 30 0.0 2
off off off
6 30.00 0 0 0.0 2
off off off
The original values ("before" table) are illustrated
with a continuous line and the edited trace ("af-
ter") table with a broken line.
In the edited table a new segment has been 
entered, and , tolerancee and pump level f
have been changed (Ì 0).
after (- - - - , edited)
No. T
end
hh mm Tol.
Pump
S1 S2 S3
Start
30.00 -- -- 0.1 2
off off off
2 50.00 0 20 0.0 2
off off off
3 
50.00 0 20 0.1 3
off off off
4 70.00 0
20

0.0
4 f
off off off
5 70.00 0 10
0.8
e 2 f
off off off
6 60.00 0 30 0.3 2
off off off
7 30.00 0 0 0.0 2
off off off
The tolerance entry can have a large effect with
external bath control. The adjacent graph of the
edited trace shows the possible run-on of the ac-
tual temperature in the bath vessel (continuous
line) for the set-point temperature of the program-
mer (highlighted in gray).
Note:
− The tolerance field facilitates exact confor-
mance to the dwell time at a specified tem-
perature. The following segment is only proc-
essed when the actual temperature reaches
the tolerance band n, so that for example the
ramp of segment 2 is only started delayed by
o.
− A tolerance range which is too tight can however also cause undesired delays. In particular with
external control the range should not be chosen too tightly. In Segment 5 a larger tolerance has
been entered, so that the desired time of ten minutes is maintained even with settling action p.
− Only flat (slow) ramps should be programmed where necessary with a tolerance range. Steep
ramps which lie close to the maximum possible heating or cooling rates of the thermostat may be
severely delayed by a tolerance range that is too tight (here in Segment 2) q.