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PowerLogic™ PM5500 series user manual Chapter 10—Alarms
HRB1684301-01 97
Setting up logic alarms
Use ION Setup to configure logic alarms.
NOTE: You must first configure the alarms you want to use as inputs to a logic alarm.
For example, if you use a standard (1-Sec) alarm as one of the inputs, you must set up
its setpoint pickup, dropout and delay parameters.
1. Select the logic alarm you want to set up, then click Edit.
2. Select the alarms you want to use as inputs to the logic alarm.
3. Click the double-arrow button to move the selected alarm to the Selected (max 4)
box, then click OK.
4. Repeat to add more inputs to the logic alarm.
5. Configure the rest of the alarm setup parameters, click OK, then Send to save your
changes to the meter.
DO Set Point Lead/Lag
(Lead, Lag)
Lead or Lag
Applies to PF (power factor) alarms only. Use this set
the PF value and quadrant to set the dropout setpoint
for an over PF condition (PF Leading) or under PF
condition (PF Lagging). See “Power factor (PF)” on
page 91
Select Dig Output
(Outputs)
None,
Digital Output D1,
Digital Output D2,
Digital Output D1 & D2
Select the digital output(s) you want to control when the
alarm is triggered.
Standard (1-sec) alarm setup parameters (Continued)
Setting Option or range Description
Logic alarm setup parameters
Setting Option or range Description
Edit —
See the preceding procedure. This button allows you to
select up to 4 input parameters that you want to
compare against each other. The logic alarm is set
when the result of the specified logic operation on all
inputs is true.
Enable
Yes (checked) or No
(cleared)
This enables or disables the alarm.
Label
Logic Alarm 1 to Logic
Alarm 10 (default labels)
ION Setup lets you modify the default label so it more
clearly identifies your logic alarm. You can only use
letters, numbers and underscores. Spaces are not
allowed.
Type
AND
Output of AND operation is True only if all inputs are
True.
NAND
Output of NAND operation is True if one or more inputs
are False.
OR
Output of OR operation is True if one or more inputs
are True.
NOR
Output of NOR operation is True only if all inputs are
False.
XOR
Output of XOR operation is True if only one input is
True, and all other inputs are False.
Priority High, Medium, Low, None
This sets the alarm priority and notification options.
See “Alarm priorities” on page 94.
Select Dig Output
(Outputs)
None,
Digital Output D1,
Digital Output D2,
Digital Output D1 & D2
Select the digital output(s) you want to control when the
alarm is triggered.