Aqua Cubic Multiplex
-
MAN0004 Rev. B 29.03.99
19/33
The key
2/+
, which normally allows for the column visualised on the display to be changed, cannot be used until a
regeneration starts. Normally the display shows the parameters of the column in service, indicating that they belong to
the column A. Having positioned the distributor so as to have the valve A in service, the parameters visualised are in
fact those of the column A. As soon as this valve enters into regeneration, regeneration, the signal to the pins 43 – 44
goes out and the rotation of the cam causes valve B to be put into service. The display visualises the progression of the
regeneration cycle.
Now pressing the key
2/+
it is possible to visualise the residual volume of the column as soon as it has entered into in
service, that is the volume of the valve B. Note that the LED
A
still remains on.
As soon as the regeneration terminates, the LEDs on the panel will indicate again that the column A is in service and
that its parameters are being visualised. In reality, the display is showing the parameters of the valve B, those which,
during the regeneration cycle, it was possible to see only with the key
2/+
. When the valve B has run out of volume and
starts the regeneration, the operations just described will be repeated and the parameters of valve A will be visualised
again.
To summarise:
1- the controller always indicates that the column A is in service;
2- the signal to the pins 43 – 44 of the terminal board goes off during the regeneration, so this signal cannot be used
for an electrical column exchange;
3- which valve is actually in service depends only on the position of the cam of the distributor;
4- during the regeneration, pressing the key
2/+
it is possible to visualise the volume of the column which has taken
over in service.
This operative modality is not programmable. As shown in tab. 17, any programming of the flags always brings on the
same result.
When one column finishes the available volume, the controller immediately enters into regeneration. The rotation of the
cam controls the exchange of the columns, so the stand-by valve enters into service.
Tab. 17 – Consequences of the events on the working of the controller ion the basis of the programming.
Events
Programming
0HP 1HP 2HP 0dP
The reg. time is set off
with the finished days.
The volume reaches
the reserve.
The volume runs
out.
Remote start active
for 15 seconds.
0 0 0 0
The reg. does not start.
The reg. does not start.
Immediate start.
Immediate start.
0
0
0
1
The reg. does not start.
The reg. does not start.
Immediate start.
Immediate start.
0 0 1 0
The reg. does not start.
The reg. does not start.
Immediate start.
Immediate start.
0
0
1
1
The reg. does not start.
The reg. does not start.
Immediate start.
Immediate start.
0 1 0 0
The reg. does not start.
The reg. does not start.
Immediate start.
Immediate start.
0
1
0
1
The reg. does not start.
The reg. does not start.
Immediate start.
Immediate start.
0 1 1 0
The reg. does not start.
The reg. does not start.
Immediate start.
Immediate start.
0
1
1
1
The reg. does not start.
The reg. does not start.
Immediate start.
Immediate start.
1 0 0 0
The reg. does not start.
The reg. does not start.
Immediate start.
Immediate start.
1
0
0
1
The reg. does not start.
The reg. does not start.
Immediate start.
Immediate start.
1 0 1 0
The reg. does not start.
The reg. does not start.
Immediate start.
Immediate start.
1
0
1
1
The reg. does not start.
The reg. does not start.
Immediate start.
Immediate start.
1 1 0 0
The reg. does not start.
The reg. does not start.
Immediate start.
Immediate start.
1
1
0
1
The reg. does not start.
The reg. does not start.
Immediate start.
Immediate start.
1 1 1 0
The reg. does not start.
The reg. does not start.
Immediate start.
Immediate start.
1
1
1
1
The reg. does not start.
The reg. does not start.
Immediate start.
Immediate start.
