Chapter 6 - Operation
98 3BHS335648 E82 UNITROL 1020 User Manual
6.3 Panel Operation
The panel is operated using the buttons from the keypad installed in the front. The Panel
can even be used to read measurements and/or change parameters in local operation.
6.3.1 Panel Start-up
After powering up the device (UAUX power) the panel performs an initialization stage to
establish the communication with the AVR main controller.
1. During power up the panel tries to
establish communication with the AVR
main controller. During this process the
panel displays the information shown in
Figure 6-1
1020
Figure 6-1 Panel screen just after
connecting Uaux power.
2. Few seconds after the SW revisions
have been shown, the panel shows the
main menu as in Figure 6-2. The panel
can now be operated using the Keypad.
MENU
AUTO NoLoad
0.00 % UM
0.00 A Ie
100.0% S
12:45
SETPNT
REM
Figure 6-2 Main menu. The panel can
now be operated.
6.3.1.1 Connection Problems
When the panel is unable to communicate
with the AVR main controller due to
hardware problems, the screen might show
the message displayed in Figure 6-3. This
message can also appear when the panel
and AVR main controller (DSP) firmware
are incompatible each other; which might
occur after a firmware upgrade.
However, regulation and protection
functions are normally still in operation,
without being influenced by communication
problems with the panel.
AVR Not Responding
Figure 6-3 Message shown when
communication problems occur
between panel and AVR controller.
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