DAB Esybox Serie Instructions Pour L'installation Et L'entretien page 66

EK : Setting the low pressure function on suction
K
Present only in models with Kiwa function. Sets the low pressure function on suction.
Value
0
1
2
PK K : Low pressure threshold on suction
Present only in models with Kiwa function. Sets the pressure threshold below which the block is tripped for low pressure on suction.
13.2.6. Technical Assistance Menu
Advanced settings to be made only by skilled personnel or under the direct control of the service network. From the main menu, hold down
simultaneously the and
various configuration parameters: the
to increase and decrease the value of the parameter concerned. Press
TB: Water lack blockage time
Setting the reaction time of the water lack blockage allows you to select the time (in seconds) taken by the device to indicate the lack of
water. The variation of this parameter may be useful if there is known to be a delay between the moment the motor is switched on and
the moment it actually begins to deliver. One example may be a plant where the suction pipe is particularly long and there are some
slight leaks. In this case the pipe in question may be discharged and, even though water is not lacking, the electropump will take a
certain time to reload, supply the flow and put the plant under pressure.
T2: Delay in switching off
Sets the delay with which the inverter must switch off after switch-off conditions have been reached: plant under pressure and flow rate
lower than the minimum flow. T2 can be set between 2 and 120 s. The factory setting is 10 s.
GP: Proportional gain coefficient
Generally the proportional term must be increased for systems characterised by elasticity (for example with PVC pipes) and lowered in
rigid systems (for example with iron pipes). To keep the pressure in the system constant, the inverter performs a type PI control on the
measured pressure error. Depending on this error the inverter calculates the power to be supplied to the motor. The behaviour of this
control depends on the set GP and GI parameters. To cope with the different behaviour of the various types of hydraulic plants where
the system can work, the inverter allows the selection of parameters different from those set by the factory. For nearly all plants the
factory-set GP and GI parameters are optimal. However, should any problems occur in adjustment, these settings may be varied.
GI: Integral gain coefficient
In the presence of large falls in pressure due to a sudden increase of the flow or a slow response of the system, increase the value of
GI. Instead, if there are swings in pressure around the setpoint value, decrease the value of GI
IMPORTANT: To obtain satisfactory pressure adjustments, you generally have to adjust both GP and GI.
RM: Maximum speed
Sets a maximum limit on the number of pump revolutions.
Impostazione del numero di dispositivi e delle riserve
NC: Simultaneous devices
Sets the maximum number of devices that can work at the same time. It may have values between 1 and the number of devices present
(max 4). By default NC assumes the number of active devices, which means that if active devices are added or removed, NC assumes
the value of the devices present. Setting a value other than the active devices fixes the maximum number of simultaneous devices at
the number set. This parameter is used in cases where there a limit on the pumps you can or want to be able to keep running (see IC:
Configuration of the reserve and the examples below). On the same menu page you can also see (but not change) the other two system
parameters linked to this: the number of devices present, detected automatically by the system, and the number of active devices.
Parameters available in version KIWA
Function
Disabled
Enabled with automatic reset
Enabled with manual reset
and keys until "TB" appears on the display
ey allows you to scroll through the menu pages, the
ENGLISH
Table 12
or
to leave this menu and return to the main menu.
60
). The menu allows you to view and modify
and keys allow you respectively