Danfoss BW10 020-090, Operation Instructions Manual

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4. SETTING UP CONTROL SYSTEM4.1 - General features
The interface includes different screens that are listed below:
• Default screens with direct display of the main parameters,
• Menu screens for navigation,
• Data/configuration screens listing the parameters by type,
• Operating mode selection screen,
• Password entry screen,
• Parameter modification screen.
NOTE: If the interface is not used for a long period, it will go
black. The control is always active, the operating mode
remains unchanged. The interface screen is re-animated,
when the user presses a key. Pressing the key once illumi-
nates the screen, pressing the key a second time leads to a
screen that is related to the context and the key symbol.
4.2 - Default screen characteristics
There are four default screens. Each screen shows:
• The unit status, its screen number,
• Three displayed parameters.
LOCAL OFF 1 On the left the unit status, on the right
the screen number
Entering water temp Description of the first parameter
term_ewt 17.2 °C Abbreviation and value with unit of
measurement of the first parameter
Leaving water temp Description of the second parameter
term_lwt 17.2 °C Abbreviation and value with unit of
measurement of the second parameter
Control point Description of the third parameter
CTRL_PNT 12 °C Abbreviation and value with unit of
measurement of the third parameter
Pressing the Up or Down key changes one default screen to
another default screen. The screen number is updated.
4.3 - Password screens
Enter password Description of the password entry
screen
0_** Password value
(0 = basic access) Description
The password is entered digit by digit. The cursor is shown at
the current digit that flashes. The arrow keys modify the digit
value. The digit modification is validated with the Enter key and
the cursor is moved to the next digit.
Enter password
1_** The first digit is 1, the cursor is
positioned on the second digit
(0 = basic access)
Enter password
11_**
( 0 = basic access)
Pressing the Enter key at a digit without value validates the
overall selection of the password. The screen is refreshed by
the menu list, and the items displayed depend on the level of
the activated password.
The entry of an incorrect password keeps the password entry
screen.
Password selection 0 (zero) can simply be made by pressing the
Enter key twice in succession.
4.4 - Menu screen characteristics
\\MAINMENU Current path in the menu structure
GENUNIT PUMPSTAT Selection cursor to the left of the first
column
TEMP RUNTIME
PRESSURE MODES Menu list
SETPOINT LOGOUT
INPUTS
OUTPUTS
General Parameters Menu Description of the menu framed by the
selection cursor
Each menu item defines the access to categorised data. The Up
and Down arrows position the cursor at the current item. The Enter
key activates the display of the selected sub-menu.
The item LOGOUT permits exiting from the menu screen and
protects access by a user password. The “Previous” key permits
exiting from the current screen without deactivating the
password-protected access.
4.5 - Data screen or configurable parameter
characteristics
The data screens display information parameters such as
temperatures or pressures. The configuration screens display unit
control parameters such as the water temperature setpoints.