Wilo Economy MHIE, Installation And Operating Instructions Manual

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49
English
Installation and operating instructions – Wilo-Economy MHIE
8.4.2 Display structure
8.4.3 Description of standard symbols
8.4.4 Display
Display status page
• The status page appears as the default page of
the display.
The currently set setpoint is displayed. Basic
settings are displayed by symbols.
Example of display status page
Pos. Description
1 Menu number
2 Value display
3 Unit display
4 Standard symbols
5 Icon display
Symbol Description
Operation in “Speed stage control”
mode
Operation in “Constant pressure”
or “PID control” mode
Operation in “Variable pressure”
or “PID control” mode
2
IN2 input activated
(external setpoint)
Access lock
When this symbol appears, the set-
tings or current measurement values
cannot be modified. The information
is displayed in read-only form
BMS (Building Management System)
PLR or LON is activated
Pump in operation (if flashing, zero
delivery rate detection detected)
Pump switched off
NOTICE: In all menus, if the rotary knob is not
operated within 30 seconds, the display will reap-
pear and no change will be registered .
Navigation element
• The menu structure makes it possible to call
up the functions of the converter. A number is
attributed to every menu and submenu.
• Turn the rotary knob to scroll through any menu
level (e.g. 4000 -> 5000).
• Blinking elements (value, menu number, symbol
or icon) allow the selection of a new value, a new
menu number or a new function.
8.4.5 Defining the application of an open or closed
hydraulic loop
The product has two types of application. The
type of application chosen defines the operating
modes that can be accessed.
Menu 5.7.8.0 of the EXPERT menu can be used to
select the type of application required.
NOTICE:
The product must be reinitialised when
the application is changed. All the user parame-
ters will revert to the factory settings.
8.4.6 Defining operating modes
Defining pressure sensors
• The relative pressure sensor measures the pres-
sure in relation to atmospheric pressure.
• The absolute pressure sensor measures the pres-
sure in relation to the zero pressure in a vacuum.
• The differential pressure sensor measures the
pressure between two points.
NOTICE:
All the pressures indicated by the pump
are measured in relation to the atmospheric pres-
sure, except when a differential pressure sensor
is used.
Symbol Description
When the arrow appears:
• An impulse on the rotary knob
provides access to a sub-menu
(e.g. 4000 -> 4100).
When the “return” arrow appears:
• An impulse on the rotary knob
provides access to the higher
menu (e.g. 4130 -> 4100).
Hydraulic
application
Operating mode
Open loop “p-c” mode Speed stage
control mode
PID mode
Closed loop
“Δp-c” mode
“Δp-v” mode