JUMO 705010 mTRON T - Multichannel Controller Module Operating Manual - Manual (Page 87)

87
6 Configuration
Parameter dimensioning
Appropriate dimensioning of parameters used for determining the mean output level is required
for the output level monitoring to function correctly.
The control differential band around the actual value defines the corrected state. It should be
dimensioned so that it is adhered to during normal operation. The progression of the actual val-
ue can be recorded, for example with the recording function of the multifunction panel or with
the startup function of the setup program. Determination of the mean output level starts when
the actual value enters the control differential band. Calculation of the mean output level starts
over if there is temporary deviation from the control differential band during output level deter-
mination or if the setpoint value is changed by more than 0.5 × control differential band
x.
The determination time is used to calculate a mean output level by means of a moving aver-
age. The selected time should be sufficient to ensure as accurate a calculation as possible. At
the determination time, a waiting time equal to 0.5 × reset time Tn ensues, during which a
check is made for whether the movement of the actual value and output level is within the spec-
ified limits. If one of the limits is exceeded, the calculation starts over. The output level monitor-
ing becomes active after successful calculation.
w
t
t 0.5 x Tn
y
x
Dx
Dy
T
C
y
A
x Actual value w Setpoint value
y Output level y
A
Mean output level
T
C
Determination time Tn Reset time
y Output level band x Control differential band