7
ALARM PARAMETERS
Visit www.ppiindia.net for technical notes on ALARM for detailed understanding of the parameters / terminologies
used for describing the Alarm parameters in this section.
The parameters required for configuring Alarms are grouped on PAGE-10. The configuration includes selecting the type of
Alarm, setting the hysteresis value, enabling / disabling start-up Alarm suppression, etc. Refer Table 4.1 for parameter
description & settings.
Table 4.1
ALARM INHIBIT
Yes
The Alarm activation is suppressed until the PV
is within Alarm
limits from the time the indicator is switched ON. This allows
suppressing the Alarm during the start-up Alarm conditions.
No
The Alarm is not suppressed during the start-up Alarm conditions.
ALARM HYSTERISIS
This parameter value sets a differential (dead) band between the
ON and OFF Alarm states. Keep it large enough to avoid frequent
switching of the Alarm relay.
No
Yes
(Default : No)
Settings
(Default Value)
Parameter Description
ALARM SET POINT
This parameter sets the Process High or Process Low limit for
Alarm.
ALARM NUMBER
Select Alarm Number for parameter setting. For example; setting
the value to 1, selects Alarm-1.
ALARM TYPE
None
Disable the Alarm .
Process Low
The Alarm activates when the PV equals or falls below the ‘Alarm
Setpoint’ value.
Process High
The Alarm activates when the PV equals or exceeds the ‘Alarm
Setpoint’ value.
1 to 4
(Default : 1)
Min. to Max. of selected
input type range
(Default :
For
Process Low : -200.0
& Process High : 1376.0
)
None
Process Low
Process High
(Default : None)
(Default : 2.0)
For DC Lin. Volts/Current
1 to 30000 Counts
For Thermocouple/RTD
1 to 3000 or 0.1 to 3000.0
User Manual
neuro 100EX
Section 4
