DEPOLOX
®
Pool Functions
WT.050.570.000.DE.IM.0714 121
2.6
Completing
adaption without errors
When the loop times (dead time Tu and rise time Ts) has been comple-
ted without errors, calculation of the control parameters Xp and Tn
commences. This is indicated by the message "Adaption OK". The cal-
culated parameters are entered into the menus. When adaption has
been concluded, the measuring amplifier adjusts with the newly calcu-
lated control parameters and continues in the selected operating mode
(e.g. automatic).
These are entered into the "Tu" and "Ts" menus to monitor the deter-
mined loop times.
If errors occur in the control loop during adaption (e.g. filter backwas-
hing or changes in the circulation), incorrect loop times and therefore
incorrect control parameters can be determined.
CAUTION!
The remaining control parameters Ymin, Ymax and Tp are not influ-
enced when adaption is performed. The control parameters Xp and Tn
are determined for Ymin = 0 % (no basic load) and Ymax = 100 % (no
dosing rate limitation). If a basic load Ymin or dosing rate limitation
Ymax be required for specific system requirements, it must be taken in-
to account that the control loop is restricted as a result. There is then
the risk of excessive chlorination (Ymin too high) or inadequate chlori-
nation (Ymax limits excessively).
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