Watlow PPC-2000 - Manual (Page 149)

PPC-2000 User’s Guide Chapter 3: Operating with AnaWin 3
Doc.# 30002-00 Rev 2.3 Watlow Anafaze 123
Alarms
Parameters on the Alarms spreadsheet enable and set the
behavior of the process and deviation alarms for each channel.
Figure 3.14 Alarms Spreadsheet
Select the Alarms button to configure or monitor PPC alarm
parameters. Channel names are located in the first column;
each channel has a row of associated alarm parameters. For
example, PPC1:Channel 3 indicates PPC #1 and channel #3.
HP Limit
Enter the value at which you want the high process alarm to
activate. The high process alarm activates when the process
variable (PV) goes above the high process set point. The PV
must drop to the alarm set point minus the alarm deadband for
the alarm to clear.The default high process alarm set point is 0.
Range: same as the range of the input type selected. See Table
3.15 on page 130.
HP Type
Select the function of the high process alarm. See Process
Alarms on page 95 for a description of the settings.
Range: Alarm or Control
HP Enable
Set this field to enable or disable the high process alarm. When
it is Enabled, the high process alarm activates if the process
variable (PV) rises above the HP Limit. The PV must drop below
the HP Limit minus the alarm deadband to be reset (cleared).
When this parameter is set to Disabled, the high process alarm
does not occur.
Range: Enable or Disable