03146790FE-G0 03/2007
4
Use
Advanced UMI
Operation
After a trip on fault (i.e. phase overcurrent):
b
trip light is lit up
b
I>51 light is lit up
b
the graphic interface (optional advanced UMI)
displays :
v
"Phase fault" message
v
tripping current
v
date and time of fault occurrence
b
pressing the
key displays the 16 most
recent unacknowledged alarms
b
pressing the
key clears the alarm
message
b
pressing the
key resets the protection
relay.
Access to measurements
and parameters
The measurements and parameters may be
accessed using the metering, diagnosis, status,
and protection keys. They are arranged in a
series of screens as shown in the diagram on
the right:
b
The data are split up by category in 4 loops,
associated with the following 4 keys:
v
key :
measurements
v
key :
switchgear
diagnosis
and additional measurements:
v
key
: general settings
v
key
: protection settings.
b
When the user presses a key, the system
moves on to the next screen in the loop. When a
screen includes more than 4 lines, the user
moves about in the screen via the cursor keys
(
,
).
Example: measurement loop.
D
E
80194
Protection and parameter
settings modes
There are 3 levels of use:
b
operator level: used to read all the screens
and does not require any passwords
b
protection setting level: requires the entry of
the first password (key
) allows protection
setting (key
)
b
parameter setting level: requires the entry of
the second password (key
) allows
modification of the general settings as well (key
).
Changing the passwords requires the parameter
setting level. The passwords have 4 digits.
All the setting and operating functions are
available on the screen of a PC equipped with
the SFT2841 software tool and connected to the
PC connection port on the front panel of Sepam
(run in a Windows 2000, XP or Vista
environment).
All the data used for the same task are grouped
together in the same screen to facilitate
operation. Menus and icons are used for fast,
direct access to the required information.
MT
10966
