L2275
Emax UL
79/132
Doc. N°
Mod.
RH0109002
Apparatus
Scale
Page N°
Fig. 7 - Some screens of the unit.
The Graphic Display is of the LCD type with 192x64 pixel and is rear-lit when there is an auxiliary voltage.
The display is always lit, when there is Vaux, or, in self-supply with a minimum busbar current, as defined in par. 15.2.2.1
It is possible to adjust the contrast by pressing over the TEST key on the current page (the one which shows the four busbar and the ground currents),
using the
↑
and
↓
keys to increase and decrease it, and
↵
for the ABB SACE default value.
N.B.: In the case of “TEMP” LED lit or flashing, the display turns off (see par.15.2.6.7).
15.2.11.1 Use of pushbuttons
The modifiable fields can be filled in using the
→
or
←
keys and confirming with the
↑
and
↓
or
↵
keys. Once entered on the relative page, movement
from one value to another can be carried out by using the
↑
and
↓
keys. To change a value, on the other hand, once the cursor is positioned over
the value itself (the modifiable field will be put in reverse, i.e. white on a black background), use the
→
or
←
keys.
To confirm the programming operation of the parameters just configured, press the ESC key once only. A check will be carried out for parameters
entered and then the page for programming confirmation will be displayed. To return to the main menu, it is necessary to press the ESC key twice.
The RESET pushbutton must be used to reset the yellow magnetic flags, the contacts of the signaling relay unit and to interrupt the self-test.
The TEST pushbutton must be used to carry out the Trip test and to activate adjustment of the contrast on the display.
15.2.11.2 Read and Edit mode
The map relative to the menus (see par. 15.4.1) displays all the pages which can obtained and the movements to be carried out with the keyboard,
in the“READ” (just for data readout)or in the “EDIT” mode (for the setting the parameters).
Starting from any page displayed, two different operations can be obtained according to the state of the unit:
1. “READ”:
the default page will be displayed automatically after about 120 seconds.
2. “EDIT”:
the default page will be displayed automatically after about 240 seconds.
The functions allowed according to the state are :
“READ”:
&
Consultation of the measurements and of the historical data
&
Consultation of the unit configuration parameters
&
Consultation of the protection parameters
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