Menu Display; Installer Parameters - Nastec 4HS Installation And Operating Manual

10.4

Menu display

Pressing ENTER where you are in *MENU' / ENT to access] in initial display, the following MENUs are displayed:
MENU
Instal. param.
MENU
Advanced param.
MENU
Retrieve Init. Set.
MENU'
Change Init. Set.
To exit the Menu level and return to INITIAL DISPLAY is enough to press STOP button

10.5 Installer parameters

Most of the installer parameters are already set up during the initial configuration (chapter 6.2 Settings). Through
this menu is possible to change again the previous parameters or enable further parameters allowing a perfect
calibration of the pumping system in relation to the plant.
parameter
Control mode

Constant press.

Fix speed

Const.press.2val

Fix speed 2 val.

External speed

Constant temp.

Const. flow
Password required to enter (default 001)
Password required to enter (default 002)
Installer password required to enter (default 001)
It is possible to return to original default set parameters (Change Init. Set.)
Password required to enter (default 002)
desciption
Mode of control:

Constant pressure: CM changes the speed of pump to keep the
pressure constant, independent of water demand

Fixed frequency: CM feeds the pump a set frequency, so the speed of
motor is kept constant.

Constant pressure control with two values; the two values are
selected by opening or closing the digital input 2.

Fixed frequency control with two values to be selected by opening or
closing the digital input 2.

External speed: control motor frequency by using analogical input 4-
20 mA connected to input AN4.

Constant temp.: CM changes the speed of pump to keep the
temperature constant. An analogical signal 4-20 mA coming from a
temperature sensor must be connected to input AN3.

Constant flow: CM changes the speed of pump to keep the flow
constant. An analogical signal 4-20 mA coming from a flow sensor
must be connected to input AN3.
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