Siemens siprotec 7SA6, Manual

Page: 193 / 876

Functions
6-3
7SA6 Manual
C53000-G1176-C156-2
Settings are selected using the and keys. When the key is pressed, the
user is prompted for a password. The user should enter Password No. 5 and then
press the
key. The current value of the setting appears in a text box, with a blink-
ing text insertion cursor.
Text Values A text setting may be modified using the and keys to select one of two or more
options.
Numerical Values
(including
∞
)
A numerical setting may be modified by overwriting the current value using the numer-
ical keypad. See Figure 6-3. A value of “infinity” may be entered by pressing the dec-
imal key twice
. The “
∞
”
−
symbol will appear in the display.
If the number entered is not within allowable limits, the maximum or minimum allowa-
ble value will appear in the lower portion of the display. To enter a new, allowable val-
ue, the
key should be pressed again.
Note that measured values and limit values must be entered in secondary quantities
when using the front control panel of the device.
Confirmation Any modification to a setting value must be confirmed by pressing the key. A
blinking asterisk is an indication that setting modification mode is still open. Other
modifications can be made to settings, even in sub-menus (if present), as long as set-
ting modification mode is still open. The actual modification of settings occurs once
setting modification mode is closed (see below, “Exiting the Setting Mode”).
Figure 6-3 Example of setting modification using the front control panel
If a setting modification is not confirmed with the key, the original value reappears
after one minute, and a message window appears after three minutes notifying the
user that the setting modification period has expired. When the
key is pressed, a
further message window appears, notifying the user that the setting modifications
were discarded. Further modification of settings is possible by pressing the
key
and re-entering the password.
ENTER
ENTER
. .
ENTER
ENTER
ENTER
PW Settings?
=-------
Enter password No. 5 and confirm with
ENTER
0203
Vnom PRIMARY 15.00
P.SYSTEM DATA
[
02/16
---------------------
0203 Vnom PRIMARY
> > >
15.00kV
The modified setting value appears in the
list; a blinking asterisk in the title bar indi-
cates setting modification mode is still
open.
Example for numerical setting:
Enter the new value and confirm with
ENTER
P.SYSTEM DATA1 02/16
---------------------
0203 > Vnom PRIMARY
> > 12.00kV
ENTER
ENTER
ENTER