ABB COMMANDER 300 Programming Manual page 43

...4.11 Set Up Alarms Page
trIP
––––
HYSt
– – – –
More
alarms
MOrE
– – –
YES
Trip Level
Set the trip value required for the alarm selected above.
The following are displayed in engineering units:
HPrC
HdEV
trip points. Refer to Fig. 4.11.
The following are displayed as percentages:
HOUt
The following are displayed as a percentage of span per
hour between ±0.5 and ±500%:
FrtE
The following are displayed as event numbers:
PEVt
If the
are alpha, not numeric. The following codes are
selectable:
AUtO
MANUAL
L–SPt
r–SPt
dSPt
PVFAIL
rSFAIL
PNFAIL
INFAIL
P–HOLd
If
AUtO
and an attempt is made to use that facility (Automatic,
Manual, Local set point, Remote set point, or Dual set
point) the alarm is activated.
Hysteresis
The hysteresis is operational when the alarm is active.
Set the hysteresis value required (in engineering units),
between display full scale and zero, or percentage rate set
on rate alarms, in 0.1% increments. The alarm is activated
at the trip level but is only turned off after the alarm variable
has moved into the safe region by an amount equal to the
hysteresis value. Refer to Figs. 4.9 to 4.13.
More Alarms to be Programmed?
If there are, select
Return to
parameter.
no
Continued on next page
, ,
LPrC HdEV
and LdEV alarms have both positive and negative
and
LOUt.
and .
SrtE
(1 to 9) and
SEVt
is set to
Alarm Type
– Automatic
– Manual
– Local set point
– Remote set point – only selectable if
Second set point type is Remote set
point
– Dual set point– only selectable if
Second set point type is Dual set point
– process variable failure
– Remote set point failure
– position feedback failure
– any input failure
– alarm activated when program is on
Hold (Profile only)
, ,
MANUAL L–SPt
otherwise select
YES
Alarm Identities
4 CONFIGURATION...
and .
LdEU
(1 to 30).
the displayed characters
MOdE
, , or
r–SPt d–SPt
.
no
frame, or advance to the next
is selected
41