OS3030
Changing and scanning the basic settings
16. Maintenance
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0
16. Maintenance
If a code number has
been defined in order to
safeguard
against
unauthorised activation of
the "MAINTENANCE" phase, you will have to enter this number before you
can select step 16.1. If you do not know the code no., you can proceed
within the program or interrupt the programming sequence.
The maintenance phase is started from the stop during maintenance phase.
It comprises two time-dependent stages which run in consecutive order.
Once this phase is over, the controller returns to the stop during
maintenance phase.
You define whether the input valve and the concentrate valve are open
during these 3 stages, and when the pressure pump kicks in.
In the case of equipment with an IF plug-in card, you also specify whether
or not the OUT 1 and OUT 2 outputs are active.
N.B.!
If the "low-water", external alarm switch " or "stop" inputs are used, specify
whether or not they are to be active during the maintenance phase. This is
done is programming steps 5.8, 5.12 and 5.13 respectively. The conduc-
tivity
limits
are
not
queried.
If a power failure occurs during the maintenance phase, the controller
switches to the stop during maintenance phase when the power supply
returns. If a code number has been defined for the "maintenance" phase, it
must be re-entered.
Stage 1
Set the time of the first
stage. The permissible
range
is
0
to
9000
seconds. If you select 0,
the stage is skipped.
In the case of the 1
st
stage,
specify
which
valves are open, whether
the
high-pressure
is
running and which outputs are active if there is a plug-in card installed.
N.B.!
The OUT 1 and OUT 2 outputs are only switched on or off in line with these
program settings, irrespective of the functions selected in programming
steps 6.1 and 6.2.
This allows the outputs (AP, PV) to be used for another function (other than
dosing) during the maintenance phase.
Press INFO to see the meaning of the abbreviation in plain text.
PU
=
High-pressure pump
DO
=
Dosing
IV
=
Input valve
AP
=
Additional program
CV
=
Concentrate valve
PV
=
Permeate valve
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