DEPOLOX® Pool Compact
3. Description
15
EN
Auto tune sequence
Each Auto tune phase is now displayed with a status message:
Completing Auto tune without errors
When the loop times (dead time Tu and rise
time Ts) have been completed without error,
calculation of the control parameters Xp and
Tn commences. This is shown by “AUTO TUNE
OK:” The calculated parameters are entered in
the menus. When Auto tune has been comple-
ted, the measuring amplifier adjusts with the
newly calculated control parameters and con-
tinues in the selected operating mode (e.g.
automatic).
Completing Auto tune with errors
If errors occur in the control loop during Auto
tune (e.g. filter backwashing, changes in the
circulation speed or widely fluctuating num-
ber of visitors to the pool) or if the reaction
times of the control loop are too long, Auto
tune is interrupted.
.
Display text
Explanation
1:
Initialization
Start
2:
Control signal Ym = 0 %
Chlorinator to 0 % or dosing pump off
3:
Wait for act. value X = 20 %
Delay until act. value < 0.2 x 2xsetpoint
4:
Set control signal 100 %
Chlorinator to 100 % or dosing pump on
5:
Wait for control signal 100 %
Wait until chlorinator reaches 100 %
6:
Init. dead time measurement Tu
Start dead time measurement
7:
Dead time measurement Tu
Measurement of the loop dead time Tu
8:
Check dead time Tu
Plausibility enquiry dead time
9:
Calculate initial values Ts
Start of rise time measurement
10:
Measure rise time Ts
Measurement of the loop rise time Ts
11:
Calculate parameter
Calculate control parameters
12:
Set control signal Y = 0 %
Chlorinator to 0 % or dosing pump off
13:
Wait for control signal 0 %
Wait until chlorinator reaches 0 %
ATTENTION
Auto tune can take up to 13 hours, depen-
ding on the control loop. During this time no
errors should occur on the control loop (e.g.
filter backwashing, changes in the circula-
tion speed or widely fluctuating number of
visitors to the pool).
NOTICE
The Auto tune procedure can be terminated
at any time with “ABORT.” The previously set
parameters remain unchanged.
NOTICE
To monitor the determined loop times, they
are entered in the "Tu" and "Ts" menus. If
any errors in the control loop do occur
during Auto tune (e.g. filter backwash or
changes in the circulation speed), this may
lead to incorrect loop times, resulting in the
determination of incorrect control parame-
ters.
ATTENTION
The remaining control parameters are not
influenced when Auto tune is performed.
NOTICE
If any of the error conditions described
below occur, Auto tune is interrupted. The
measuring amplifier displays a fault mes-
sage. The original parameters Xp, Tn, Tu and
Ts are not changed. The message must be
acknowledged, the controller continues to
operate with the previous settings.
