Eaton IQ 250, User & Installation Manual

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8-16
IB02601006E
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Chapter 8:
Programming the IQ 250/260 IQ 250/260 Meter
4. You can specify an Accumulation Compression Factor. The Compression Factor is used to adjust how high an
accumulator will go before rolling over. Because of this, it is useful in delaying rollover.
For example , if you select a Compression Factor of 10, each time 10 Pulse/State changes occur, the accumulator
count will increment by 1. The available Compression Factors are: 1, 10, 100, 1000, 10000 , and 100000 . The
default Compression Factor is 1 .
5. To configure the Relay Inputs , click Digital Input Settings . Use this screen to set up Accumulators and Input
Labels.
• You can set up to two Input IDs for your Relay
Card, and assign a Label , Open Label , and
Closed Label for each.
• You can assign labels and other information for
Accumulators for the Inputs.
a. Make a selection in the Assigned to field.
The available selections are:
• Status Only
• EOI Pulse, Trigger on Contact Closing
• EOI Pulse, Trigger on Contact Opening
• EOI Pulse, Trigger on Contact Change
• Accumulator, Increment on Contact
Closing
• Accumulator, Increment on Contact Opening
• Accumulator, Increment on Contact Change
NOTES on End of Interval (EOI):
• EOI is triggered when the selected condition is met.
• EOI is used as a trigger for demand averaging : when the selected condition is met, the EOI delineates
an interval that results in demand averaging being performed.
• The minimum interval between EOI Pulses used to trigger demand averaging should be 5 minutes.
• Only one Option Card input or output can be set to trigger an EOI pulse .
b. Enter Units/Count . The Units/Count is the output ratio from the device that is being input into the meter.
For example , if you have a KYZ module that is outputting a pulse every 1.8 kWh, with the input set to
Accumulator, Increment on Contact Opening, you would set the Units/Count to be the value of the KYZ; in
this case either 1.8 or a ratio of that number.