The pumps must all be connected to a single delivery manifold:
For good operation of the pressure boosting set, the following
must be the same for each device:
• hydraulic connections
• maximum speed
9.4.3 - Wireless communication
The devices communicate with each other and send the flow and pres-
sure signals by wireless communication.
9.4.4 - Connection and setting of the inputs
The inputs of the I/O control unit are used to activate the float, auxiliary
setpoint, system disabling and low suction pressure functions. The func-
tions are indicated respectively by the float switch (F1), Px, F3 and F4
symbols. If activated, the Paux function boosts the pressure in the system
to the set pressure see par. 7.6.15.3 - Setting auxiliary setpoint input
function. The functions F1, F3, F4 stop the pump for 3 different reasons,
see par 7.6.15.2, 7.6.15.4, 7.6.15.5.
The parameters for setting the inputs I1, I2, I3, I4 are part of the sensitive
parameters, so setting one of these on any device means that they are
automatically aligned on all the devices. As the setting of the inputs not
only selects the function, but also the type of polarity of the contact, the
function associated with the same type of contact will perforce be found
on all the devices. For the above reason, when using independent con-
tacts for each device (as is possible for the functions F1, F3, F4), these
must all have the same logic for the various inputs with the same name;
that is, for the same input, either normally open contacts are used for all
the devices or normally closed ones.
Parameters linked to multipump operation
The parameters shown on the menu for multipump operation are classi-
fied as follows:
• Read-only parameters
• Parameters with local significance
• Multipump system configuration parameters
which in turn are divided into
• Sensitive parameters
• Parameters with optional alignment
9.4.5 Parameters concerning multipump
Parameters with local significance
These are parameters that can be divided among the various devices
and in some cases it is necessary for them to be different. For these pa-
rameters it is not allowed to align the configuration automatically among
the various devices. For example, in the case of manual assignment of
the addresses, these must absolutely be different one from the other.
List of parameters with local significance for the device:
• CT
Contrast
• BK
Brightness
• TK
Backlight switch-on time
• RI
Revs/min in manual mode
• AD
Address Configuration
• IC
Reserve configuration
• RF
Reset fault and warning
• PW
Set Password
Sensitive parameters
These are parameters which must necessarily be aligned over the whole
chain for adjustment reasons.
List of sensitive parameters:
• SP
Setpoint pressure
• P1
Auxiliary setpoint input 1
• P2
Auxiliary setpoint input 2
• P3
Auxiliary setpoint input 3
• P4
Auxiliary setpoint input 4
• RP
Pressure decrease to restart
• ET
Exchange time
• AY
Anticycling
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