Operating instruction BA_074_2020-01_10.00 Universal panel indicator PH5100
Page 5/15
Operating manual
- 5 -
BA_074e, Rev.1C5
The alarms can assume the functions described on
Table 02
:
off
Alarm off.
Alarm of the Absolute Minimum
Value. It triggers when the value
of the
PV
is
below
the value
defined by the alarm
Setpoint
(SPA1 or SPA2)
.
SPA1
PV
Alarm of the Absolute Maximum
Value. It triggers when the value
of the
PV
is
above
the value
defined by the alarm
Setpoint
.
SPA1
PV
Alarm of the Differential Value. In this function the parameters “
SPA1
” and “
SPA2
”
represent errors (difference) between the PV and one reference value (
AlrF
).
ALrF
PV
ALrF+SPA1
ALrF–SPA1
ALrF
PV
ALrF –SPA1
ALrF + SPA1
alarme
SPA1 positive
SPA1 negative
Alarm of the Minimum Differential Value. It triggers when the value of the PV is
below
the point defined by:
ALrF-SPA1
(using alarm 1 as an example).
ALrF
PV
ALrF – SPA1
ALrF
PV
ALrF – SPA1
SPA1 positive
SPA1 negative
Alarm of the Maximum Differential Value. It triggers when the value of the PV is
above
the point defined by:
ALrF+SPA1
(using alarm 1 as an example).
ALrF
PV
ALrF + SPA1
ALrF
PV
ALrF + SPA1
SPA1 positiv
SPA1 negativ
Alarm of the Absolute Minimum Value. It triggers when the value of the totalizer (TOT) is
below
the value defined by the alarm
Setpoint.
Alarm of the Absolute Maximum Value. It triggers when the value of the totalizer (TOT)
is
above
the value defined by the alarm
Setpoint.
Alarm at overflow of totalizer.
Alarms of the Sensor Break (Sensor
Break Alarm
). It is activated when the Input
presents problems such as interrupted sensor, bad connection, etc.
Table 02
: Alarm functions
Note:
The figures are also valid for Alarm 2 (SPA2).