Operation Manual

Continuous valve actuator CHEOPS control
theben
As of: Jul-11 (Subject to change without notice) Page 24 of 71
3.4.4 Heating control
Table 14
Designation
Values
Meaning
Setting of control parameters
Via type of system
User-defined
Standard application
Prof. application Self-
configure P/PI control
Type of system
Radiator heating
floor heating
PI control with:
Integrated time = 150 minutes
Bandwidth = 4 k
Integrated time = 210 minutes
Bandwidth = 6 k
Minimum actuating value in
heating mode
0%, 5%, 10%
15%, 20%, 25%
30%, 40%
Smallest permitted actuating
value (Exception: actuating
value of 0% is always used)
Behaviour at minimum
actuating value underflow
(heating mode)
0%
0 % = 0 % otherwise min.
actuating value
Run to 0% as soon as the
defined min. actuating value
is underrun.
Runs to the min. actuating
value as long as the value is
greater than 0% and smaller
or equivalent to the min.
actuating value.
However, if a actuating value
of 0%
is required (set point
temperature reached), Cheops
control returns to 0%.
Object “actuating value
heating”
available
not available
The heating actuating value is
not to be sent on the bus
(Object 8 can be read).
The heating actuating value is
required to control other
actuators (Cheops drive).
Object 7 is added.
Transmission of actuating
value heating
At change by 1%
At change by 2 %
At change by 3 %
At change by 5 %
At change by 7 %
At change by 10 %
At change by 15 %
After how many % change*
in the actuating value is the
new value to be sent.
Small values increase control
accuracy but also the bus
load.