Advanced Settings Menu - Granit COMFORT Premium C-85 Instrucciones De Instalación Y Mantenimiento

5.5.4 FY: Enabling dispensed volume block
Enables the block function on the fluid volume dispensed FH.
5.5.5 TY: Enabling pumping time block
Enables the block function on the pumping time TH.
5.5.6 FH: Dispensed volume
Sets the fluid volume reached at which the pumping is stopped. If the function is enabled (parameter FY), see Sect. 5.5.4,
the inverter measures the fluid volume dispensed and when the FH volume set by the user is reached, pumping is disabled.
The system remains in block until it is reset manually. Reset can be done from any page of the menu by pressing the "+"
and "-" keys simultaneously and then releasing them. The count and block status are saved in memory and will therefore
be retained even after the system is switched off and then switched on again. When the dispensed volume block is
activated, the relative count is displayed in the main page and it decreases from the preset value to 0. When the count
reaches zero, the system stops and the count starts flashing. The count starts the moment the FY is enabled or the moment
of the last FH setting or from the moment the block was reset by pressing the "+" and "-" keys. The block generated is not
recorded in the fault queue. FH may be set between 10 litres (2.5 gal) and 32000 litres (8000 gal).
5.5.7 TH: Pumping time
Sets the pumping time after which the pumping stops. If the function is enabled (parameter TY), see Sect. 5.4.5, the
inverter measures the pump operating time and when the TH value set by the user is reached, pumping is disabled. The
system remains in block until it is reset manually. Reset can be done from any page of the menu by pressing the "+" and
"-" keys simultaneously and then releasing them. The count and block status are saved in memory and will therefore be
retained even after the system is switched off and then switched on again. When the pumping time block is activated, the
relative count is displayed in the main page and it decreases from the preset value to 0. When the count reaches zero, the
system stops and the count starts flashing. The count starts the moment the TY is enabled or the moment of the last TH
setting or from the moment the block was reset by pressing the "+" and "-" keys and is counted only if pumping is active.
The block generated is not recorded in the fault queue. TH may be set between 10 sec and 9h.
5.6

Advanced Settings 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 "MODE" and "SET" keys until "SP" appears on the display (or use the
selection menu pressing + or -). The menu allows you to view and modify various configuration parameters: the MODE
key allows you to scroll through the menu pages, the + and – keys allow you respectively to increase and decrease the
value of the parameter concerned. Press SET to leave this menu and return to the main menu.
5.6.1 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.
5.6.2 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.
Attention: the setting of particular values of this parameter with relation to the system may help create situations
of risk due to high water temperatures being reached inside the pump (see Warnings, Chap. 2).
5.6.3 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.
Attention: the setting of particular values of this parameter with relation to the system may help create situations
of risk due to high water temperatures being reached inside the pump (see Warnings, Chap. 2).
5.6.4 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.
ENGLISH
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