11
None
Process Low
Process High
Deviation Band
Window Band
(Default : None)
ALARM-2 TYPE
Select the Alarm-2 activation type. Selecting ‘None’ will disable
the alarm and suppress all the related parameters for Alarm-2.
ALARM-1 INHIBIT
Set to ‘Yes’ to suppress Alarm-1 activation upon power-up or
process start-up.
ALARM-1 HYSTERESIS
Sets differential (dead) band between Alarm-1 switching ON and
OFF states.
ALARM-1 WINDOW BAND
(Available for Window Band Alarm-1 Type)
Sets symmetrical positive and negative deviation (offset) limits
from control setpoint for both High and Low Alarm-1 activation.
ALARM-1 TYPE
Select the Alarm-1 activation type. Selecting ‘None’ will disable
the alarm and suppress all the related parameters for Alarm-1.
Min. to Max. Range specified
for the selected Input Type
(Default : Min or Max Range)
ALARM-1 DEVIATION BAND
(Available for Deviation Band Alarm-1 Type)
Sets positive or negative deviation (offset) limit from control
setpoint for High or Low Alarm-1 activation, respectively.
ALARM-1 SETPOINT
(Available for Process High or Process Low Alarm-1 Type)
Sets Alarm limit independent of control setpoint for Alarm-1.
None
Process Low
Process High
Deviation Band
Window Band
(Default : None)
Parameter Description
Settings
(Default Value)
-999 to 999
or
-999.9 to 999.9
(Default : 5)
3 to 999
(Default : 5)
1 to 999
(Default : 2)
No
Yes
(Default : No)
ALARM PARAMETERS
The parameters required for configuring Alarm-1 and Alarm-2 are grouped on PAGE-11. The configuration includes selecting
the type of Alarm, setting the hysteresis value, enabling / disabling start-up alarm suppression, etc. Refer Table 5.1 for
parameter description & settings.
Visit www.ppiindia.net. Refer technical notes on ALARM for detailed understanding of the parameters/terminologies
used for describing the Alarm parameters in this section.
Table 5.1
User Manual
EPSILON
Section 5
