Larius Mini Mix, Operating And Maintenance Instructions Manual

Page: 17 / 48

Ediz. 010 - 09/2015
www.larius.eu
LARIUS MINI MIX
15
MAN / AUT
MAN / AU T
MAN / AUT
SIEMENS
HELP
ESC
ACK
ENTER SHIFT
TAB
INS DEL
+ / -
SIMATIC PANEL
F3 F4 F2 F1
The valves are defined as follows:
-
Ev A
: component
A
electrovalve
-
Ev B
: component
B
electrovalve
These four fields can be used to switch over/open every single
electrovalve while the selector (
I1
) is set to MAN.
Modify the field’s value to 0 or 1 in order to activate or deactivate
the relative electrovalve and to allow the selected component to
flow within the machine.
This function is necessary for performing a
complete wash of the entire system when the
two pumps have to be washed using two different
wash fluids (i.e. component A requires water to be
used as a wash fluid and the catalyser B requires
the use of a solvent).
This operation (manual valve opening) , must also be carried out
when discharging pressures.
When a valve is opened in the absence of product, the pressure
contained within the mixing block is released.
Carry out the operation for component A and component B (Ev
A, Ev B).
AUTOMATIC MODE
The automatic cycle is used for regular working functionality.
In order to activate automatic mode functionality, the operator
must turn the selector (
I1
) to the automatic position.
To deactivate automatic mode functionality, just turn the selector
(
I1
) to the manual position.
When the automatic cycle is active, the program controls the
sequence of the valves for the two components and doses them
based on the requested ratio and based on the “impulse count
frequency” settings.
Access the “General Settings” screen.
The “impulse count frequency" setting affects the frequency of
the valve sequence.
Example:
Let us suppose we are selecting a volume ratio of 3/1
(3 parts A
and 1 part B)
and setting a pulse frequency of 1. The programme
will control the valve opening, counting 30 pulses of the A supply
measurer and 10 pulses of the B supply measurer.
If a pulse frequency of 2 were set, the machine would count 60
pulses of A and 20 pulses of B.
The adjustment of the “impulse count frequency”
must be done in such a way so as to avoid high
frequencies which may not be supported by the
components.
TOTAL SHUTDOWN OF THE CONTROL PANEL
The system shutdown procedure requires the main switch ( I2 )
to be turned to the OFF position.
This operation completely arrests all of the system’s functionalities.
Impostazioni generali
Frequenza impulsi conteggio 000
Rapporto A/B 00 /00
I2
OFF
I1
I1