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5 - MEANING OF THE INDIVIDUAL PARAMETERS
The inverter makes the system work at constant pressure. This
regulation is appreciated if the hydraulic plant downstream from
the system is suitably sized. Plants made with pipes with too
small a section introduce load losses that the equipment cannot
compensate; the result is that the pressure is constant on the
sensors but not on the utility.
Plants that are excessively deformable can create the onset
of oscillations; if this occurs, the problem can be solved by
adjusting the control parameters "GP" and "GI" (see par 5.6.3
- GP: Proportional gain coefficient and 5.6.4 - GI: Integral gain
coefficient)
5.1 - User Menu
From the main menu, pressing the MODE key (or using the selection menu
and pressing + o - ), gives access to the USER MENU. In the menu the
MODE key allows you to scroll through the various menu pages. The val-
ues shown are the following.
5.1.1 - Status:
Displays the pump status.
5.1.2 - RS: Rotation speed display
Motor rotation speed in rpm..
5.1.3 - VP: Pressure display
Plant pressure measured in [bar] or [psi] depending on the measuring sys-
tem used.
5.1.4 - VF: Flow display
Displays the instantaneous flow in [litres/min] or [gal/min] depending on the
set measuring system.
5.1.5 - PO: Absorbed power display
Power absorbed by the electropump in [kW].
A flashing round symbol may appear under the symbol of the measured
power PO. This symbol indicates the pre-alarm for exceeding the allowed
maximum power
5.1.6 - C1: Phase current display
Motor phase current in [A].
A flashing round symbol may appear under the symbol of the phase cur-
rent C1. This symbol indicates the pre-alarm for exceeding the allowed
maximum current. If it flashes at regular intervals it means that the motor
overload protection is about to trip and it will very probably go into protec-
tion status
5.1.7 - Operating hours and number of starts
Indicates on three lines the hours that the device has been powered up,
the pump working hours and the number of starts of the motor.
5.1.8 - PI: Power histogram
A histogram of the power delivered is displayed on 5 vertical bars. The
histogram indicates how long the pump has been on at a given power
level. On the horizontal axis are the bars at the various power levels; on
the vertical axis, the time for which the pump has been on at the specific
power level (% of the time with respect to the total).
Figure 16: Power histogram display
5.1.9 - Output flow meter
The page shows two flow meters. The first shows the total output flow
delivered by the machine. The second shows a partial count and can be
reset by the user.
The partial count can be reset from this page, by holding down the " - "
button for 2 sec.
5.1.10 - VE: Version display
Hardware and software version with which the appliance is equipped.
GB
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