EMA90 - USER MANUAL
-44-
Warnings
To see “warnings” are available 4 pages.
The
first
page
shows
the
correct
connection
of
the
instrument:
the
current
transformer
connection
for
current
input
and
the
phases
sequence
for
voltage
input.
If
at
least
one
of
current
transformer
is
inverted,
the
display
shows
“Warning
CT”,
otherwise
“CT
OK”.
If
the
phases
sequence
of
voltage
inputs
is
inverted
will
appear
“WARNING!”,
otherwise
“Phases
sequence
OK”.
“No
Info,
Please
Wait”
message
appears
during
the
elaboration
to
establish
the
phases
sequence.
The
information
on
phases
appears
only
if
the
three
phase
system
voltage
is
higher
of
10V,
otherwise
the
display
shows:
“Low
voltage,
No
Info”.
If
the
voice
of
menu
Setup|General|Warnings
is
“Yes”,
the
warnings
page
of
CTs
inversion
and
phases
sequence
will
be
display
automatically
alternatively
at
the
default
page
each
time
that
happens
an
inversion.
The second page shows the situation of internal battery.
If the voltage level of internal battery is lower of 2.3V on display will appear
“Battery LOW”, otherwise “Battery OK”. This page will be displayed
independently of the voice of menu Setup|General|Warnings when the
voltage level is lower of 2.3V.
Warning. If there’s no battery or its voltage level is lower than 2.3V the
instrument will lose all storing data in RAM, minimums, maximums, energy
counter, and the setup).
On the third page (Turn-Off) appears date and hour of the
last of 10 events of voltage lack on one phase at least on
measure line or the instrument shut off. On the fourth
page (Turn-On) appears the events of the voltage come
back at least of one phase or when the instrument turn
on. On both pages the three values of the right column
have the means indicated in the following table:
V
L1
V
L2
V
L3
Means
V
L1
V
L2
V
L3
Means
0
0
0 Turn off/Turn on instrument
1
0
0 Lack/ Come back voltage on L
1
0
0
1 Lack/Come back voltage on L
3
1
0
1 Lack/ Come back voltage on L
1
and L
3
0
1
0 Lack/ Come back voltage on L
2
1
1
0 Lack/ Come back voltage on L
1
and L
2
0
1
1 Lack/ Come back voltage on L
2
and L
3
1
1
1 Lack/ Come back voltage on L
1
, L
2
and L
3
The number 10 will be the last event. The oldest will be the number 1. The newest event will take the
tenth position that will be free thanks to the up shift of the all others events. The oldest will be deleted.
General info
The
instrument
has
2
Info
page
if
the
PF/S
(Profibus
port)
or
ETH,
ETH/S
(Ethernet
port)
option
boards
are
not
installed:
in
the
first
appears
the
information
on
the
model,
version
firmware,
installed
memory,
the
number
of
I/O,
the
type
of
the
second
serial
port
installed
(“no”
to
indicate
the
absence)
and
the
communication
protocols
used;
in
the
second
appears
the
indication
of
the
enabling
(yes)
or
disabling
(no)
of
the
options
as
Timebands,
Harmonics
and
Load
Control.
If
one
of
the
three
optional
pages
is
installed,
the
info
pages
will
become
three:
at
the
two
pages
described
before
the
page
with
info
on
the
option
port
installed
will
be
added.
These information that identify the instrument and its
configuration are useful for eventual upgrade.
Summary of Contents for EMA90
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