1710
‐
PT060PNE
Rev.
0
Page
13
of
57
2.5
Management of relays
The
basic
instrument
is
equipped
with
five
relays
that
can
be
configured
as
required.
A
generally
open
contact
(NA)
not
under
voltage
is
available
for
each
relay.
The
relays’
operation
is
linked
to
the
conditions
defined
in
the
configuration
phase.
The
relays’
commutation
takes
place
when
the
threshold
value
set
in
the
configuration
phase
(SET
#
parameter)
is
reached
and
remains
in
this
condition
for
a
timeframe
equal
to
or
exceeding
the
alarm
minimum
time
(DAL
#
parameter).
It
is
restored
in
normal
conditions
when
the
weight
value
is
dropped
below
the
value
determined
by
the
sum
of
the
threshold
value
and
the
configured
hysteresis
value
(DB#
parameter)
and
remains
in
this
condition
for
a
timeframe
equal
to
or
exceeding
the
minimum
normal
time
(DOH
#
parameter).
The
change
of
the
relay
operation
cause
the
clearance
of
set
points
values
.
Each
relay
can
be
configured
to
operate
in
one
of
the
following
modes:
F
A
I
L
1
Load
cell
connection
fault
(FAIL).
The
alarm
status
is
triggered
when
the
FAIL
condition
is
present.
L
O
N
1
Minimum
alarm
(LO
N)
The
alarm
status
is
triggered
when
the
weight
value
is
lower
than
or
equal
to
the
threshold
value.
H
I
N
1
Maximum
alarm
(HI
N)
The
alarm
status
is
triggered
when
the
weight
value
is
greater
than
or
equal
to
the
threshold
value.
L
O
G
1
Minimum
alarm
(LO
G).
The
alarm
is
triggered,
regardless
of
the
reset
value.
The
alarm
status
is
triggered
when
the
weight
value
is
lower
than
or
equal
to
the
threshold
value.
H
I
G
1
Maximum
alarm
(HIG).
The
alarm
is
triggered,
regardless
of
the
reset
value.
The
alarm
status
is
triggered
when
the
weight
value
is
lower
than
or
equal
to
the
threshold
value.
T
O
T
N
Alarm
on
the
total
value
of
the
two
channels
(TOTG).
The
alarm
status
is
triggered
when
the
weight
value
is
greater
than
or
equal
to
the
threshold
value.
T
O
T
G
Alarm
on
the
total
value
of
the
two
channels
(TOTG).
The
alarm
is
triggered,
regardless
of
the
reset
value.
The
alarm
status
is
triggered
when
the
weight
value
is
greater
than
or
equal
to
the
threshold
value.
O
N
The
relay
is
kept
constantly
energized.
