DAB Esybox Serie Instructions Pour L'installation Et L'entretien page 68

11.3 Installation with quick connection
DAB supplies an accessory kit for Quick Connection of the system. This is a quick coupling base on which to make the connections to the plant and from
which the system can be simply connected or disconnected.
Advantages:
– possibility of making up the plant on-site, testing it, but removing the actual system until the moment of delivery, avoiding possible damage
(accidental blows, dirt, theft, ...);
– it is easy for the Assistance service to replace the system with a "spare" in the event of special maintenance.
The system mounted on its quick connection interface appears as in Fig.19.
11.4 Multiple Sets
11.4.1 Introduction to multipump systems
By multipump systems we mean a pump set made up of a number of pumps whose deliveries all flow into a common manifold. The devices communicate
with one another by means of the connection provided (wireless). The group may be made up of a maximum of 4 devices.
A multipump system is used mainly for:
– Increasing hydraulic performance in comparison with a single device.
– Ensuring continuity of operation in the event of a device developing a fault.
– Sharing out the maximum power.
11.4.2 Making a multipump system
The hydraulic plant must be created as symmetrically as possible to obtain a hydraulic load uniformly distributed over all the pumps. 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 (parameter RM)
The firmware of the connected e.sybox units must all be the same. Once the hydraulic system has been made, it is necessary to create the pumping set
by carrying out the wireless association of the devices (see par 9.5.).
11.4.3 Wireless communication
The devices communicate with each other and send the flow and pressure signals by wireless communication.
11.4.4 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
functions 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. 9.6 - Setting auxiliary setpoint input function. The functions F1, F3, F4 stop the pump for 3 different reasons,
see par 9.6.
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. Parameters linked to multipump operation
The parameters shown on the menu for multipump operation are classified 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
11.4.5 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 parameters 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.
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
NA
Number of active devices
ENGLISH
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 Reset fault and warning
NC Number of simultaneous devices
TB Dry run time
T1
Switch-off time after low pressure signal
T2 Switch-off time
GI Integral gain
GP Proportional gain
I1 Input 1 setting
I2
Input 2 setting
I3
Input 3 setting
I4 Input 4 setting
OD Type of system
PR
Remote pressure sensor
PW Change password
66