SETTING AND COMMISSIONING
53
NA016 - Manual - 05 - 2022
7.2 MMI (Man Machine Interface)
On the front panel there are eight buttons which allow the user to perform all the settings, reading
and modification operations.
[1]
The adjustment of the settings and the operation mode of the output relays must be performed while
the unit is electrically powered; the alphanumeric display shows the necessary information with
reference to the operations performed through the keyboard. One minute after the keyboard is not
more in use, the display backlight switches automatically to OFF.
All preset values are permanently stored in the nonvolatile memory.
The buttons take the following operations:
-
(
Up
) move the cursor upwards to the preceding menu options
-
(
Down
) move the cursor downwards to the subsequent menu options
-
(
Left
) move the cursor upwards to the preceding menu options
-
(
Right
) move the cursor downwards to the subsequent menu options
-
(
Enter
) access to the selected menu with the option of modifying any given parameter
-
(
Reset
) abort the current changes and/or accessing the previous menu
-
Circuit breaker Open command
-
Circuit breaker Close command
At power-up, the display shows the text:
“THYTRONIC
PRO-NA10-xxx-x serial number
date and time: (01/01/2000 00:00”
The ON green Led points out the auxiliary power supply voltage (permanent lighted) and possible
faults (blink lighted).
The display backlight is automatically activated when any key switch is set.
By means of the
Up
or
Down
buttons, it is possible to cyclically browse through the menu options:
READ, SET, COMMUNICATION, TEST
Having identified the sub-menu of interest, it is possible to gain access by using the
Right
button and
then analogously, run through the relevant options by using the
Up
or
Down
buttons.
The full menu tree and some examples are showed in the following pages (numerical values and
settings are pointed out as examples and does not agree with real situations.
Reading variables (READ)
All data (measure, settings, parameters, etc...) may be displayed:
“
Measures
>
”
“
Circuit breaker
>
”
“
Counters
>
”
“
Last fault
>
”
“
Info
>
”
“
Protection trip
>
”
“
Self-test
>
”
Setting modifying (SET)
To effect a change, having identified the parameter intended for change, the following procedure
must be performed:
• Select the parameter going through the menus by means the
Up
,
Down
and
Right
keys..
• Begin the setting phase by means of the
Enter
key; the he modification in progress status is high-
lighted by the symbol “E” flashing in the upper right area of the display.
• Change the parameter by means the
Up
(increment) or
Down
(decrement) buttons.
• Press the
Enter
button; acceptance of the change is indicated by the disappearance of the flashing
“
E
” to be replaced by the symbol “
!
”. On must be remember that changes are
NOT
active until the
Note 1 Setting changes are enabled when the La m
Enabling setting by MMI
parameter is set
Led
CB Open
CB Close
