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Page 5-15
Chapter 5 Programming
5.6.5.10.1 Alarm limits (types)
For all inputs other than Linear Dry Contact or Conditional, the Alarm types are:None, High, Low, Rate,
or Abnormal. For Linear Dry Contacts the Alarm types are: None, Open, Close or Abnormal. For
Conditional Inputs, the Alarm types are: None, True, False or Abnormal. The Alarm types are described
below:
None
No alarm set
High
Set High alarms (up to five). Alarm will occur if input is greater than the Alarm set point.
Low
Set Low alarms (up to five). Alarm will occurs if input is less than the Alarm set point.
Rate
Set Rate alarms (up to five). Alarm will occur if the input changes by more than the set
point value in the specified time.
Abnormal
Set alarms for Abnormal conditions (TCBO, Overflow, invalid etc.)
Open
Set alarm on Open contact (Linear Dry Contact inputs ONLY)
Close
Set alarm on Closed contact (Linear Dry Contact inputs ONLY)
True
Set alarm if condition is True as defined (Conditional inputs ONLY)
False
Set alarm if condition is False as defined (Conditional inputs ONLY)
If you try to program an alarm with an illegal condition, for example, setting a Linear Voltage input
alarm to “Type=close”, you will get an ILLOGICAL error.
To set an Alarm limit (type):
From the Point Setup menu use the
UP (
↑↑↑↑↑
)
or
DOWN (
↓↓↓↓↓
)
button to highlight
Alm
limits
and press the
ENTER
button. You will be prompted with “alarm #? X”. Use
the
UP (
↑↑↑↑↑
)
or
DOWN (
↓↓↓↓↓
)
button to select which Alarm number (1 through 5) you
want to set and then press the
ENTER
button. The Alarm Type menu will be
displayed as shown in Figure 5-7 with the current setting highlighted. Note that
the Alarm Type menu displays all Alarm types, but not all types are valid for all
Point Types.
a. Type=None
If the Alarm type is set to none, the alarm function will be disabled. Use the
UP (
↑↑↑↑↑
)
or
DOWN (
↓↓↓↓↓
)
button to highlight
Type=none
and press the
ENTER
button. Press the
EXIT
button to return to the Alarm Setup menu.
b. High Alarm Type
High Alarms become active when the input exceeds (is greater than) the set point.
To set the Alarm Type as High:
Use the
UP (
↑↑↑↑↑
)
or
DOWN (
↓↓↓↓↓
)
button to highlight
Type=high
and press the
ENTER
button. You will
be prompted with “high
Î
XX.XX
Í
”. Use the numeric keypad to enter the High Alarm value and
press the
ENTER
button. You will be prompted with “contact #? X”. This is the contact output that
will respond to this alarm provided the relay option is fitted. If no contact output is required, select
contact # 0. Use the
UP (
↑↑↑↑↑
)
or
DOWN (
↓↓↓↓↓
)
button to select the desired contact number (0 to 6) and
press the
ENTER
button. The display will return to the Alarm Type menu. Press the
EXIT
button
to return to the Alarms Setup menu.
Type=high
Type=low
Type=rate
Type=abnorm
Type=open
Type=close
Type=true
Type=false
Type=none
Figure 5-7
Alarm Type
Menu
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