EVCO c-pro nano NAV - Manual (Page 15)

C-PRO NANO AND MICRO NAV APPLICATION MANUAL
Page 15
3 USER INTERFACE
3.1 Display and keyboard
The application is made up from two parts, 1 master and n slave (maximum 4). The slave units are
blind (day version), therefore without display and without keys: the information can be displayed
and parameters set directly by the master.
The master controller has a user interface with 4 displays with 7 segments and 16 icons. The
controllers can also accept the EVCO Vgraph or Vtouch remote terminals that implement the CAN
protocol (the necessary part of the application must be developed for this type of LCD graphics).
There are 4 keys on the keyboard for the navigation functions of the pages and display/modification
of the values, with the following meaning:
- UP and DOWN: in editing mode, modifies the parameters; otherwise moves the display
cursor.
- SET/ENTER: in editing mode confirms the value; otherwise sends the commands
associated to the text where the cursor is found. If the ENTER key is held for about 2
seconds, it allows access to the main menu. If an alarm page is being displayed, by pressing
for about 2 seconds, it allows the alarm to be reset. If an alarm page is being displayed, it
scrolls all active alarms every time it is pressed.
- STAND-BY/ESC: in editing annulment of the value; otherwise request of the default page
associated to the current page. If the ESC key is held for about 2 seconds, it allows to switch
the machine on/off. If pressed in the main page, it allows access to the list of all active
alarms.
The icons can have different meanings if displaying the information of an individual machine or the
general information of the entire network of controllers:
- Sun icon: identifies the summer functioning mode (chiller). If stays off in heat pump
functioning mode. The meaning can be exchanged with the winter icon via the Icon
parameter:
o MASTER: Slow flashing if no regulation necessity, otherwise on with fixed light.
o UNIT: If there is no enabling of the regulation from input it flashes quickly. If there
is enabling from input but there is no request from the master it flashes slowly. If it
is regulating it is on with a fixed light
- Snow icon: identifies the winter functioning (heat pump) It stays off in chiller functioning
mode. The meaning can be exchanged with the winter icon via the Icon parameter
o MASTER: Slow flashing if no regulation necessity, otherwise on with fixed light.
o UNIT: If there is no enabling of the regulation from input it flashes quickly. If there
is enabling from input but there is no request from the master it flashes slowly. If it
is regulating it is on with a fixed light
-
Fan icon: identifies the status of the compressor.
o UNIT: If on the compressor is functioning, if flashing fast timing is in progress for a
successive switch-on or off, otherwise it remains off.