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Displaying Data with Vista ION 7500 / ION 7600 User’s Guide
Page 100 Chapter 4 - Using ION Software
Voltage Unbalance Monitoring
◆ Over voltage unbalance monitoring is disabled by default.
◆ To set the upper limit for voltage unbalance, enter the percentage of the average
voltage measurement that will be considered as a voltage unbalance condition if
it is exceeded by the voltage on any phase.
Time-of-Use
This diagram may only be important if you are using the meter in a billing
application (i.e. you are a power provider). Typically, power consumers can ignore
the Time-Of-Use Vista diagram.
The Time-of-Use (TOU) diagram displays TOU energy and demand information
(from sliding window or thermal demand calculations) for four billing rates in the
present and previous billing period, as well as the previous season. This diagram
also provides a shortcut to grouping-window display showing peak demand
details for all TOU parameters. Historic Data Logging is provided for all TOU
parameters.
Time-of-Use Tables
◆ Tabs provide access to the different groups of parameters. TOU information is
provided for demand, peak demand, and energy (real, reactive, and apparent
components).
◆ Information is “NOT AVAILABLE” if TOU is not configured.
◆ Historic Data Logging is enabled by default. The Historic Data Logging enable
object is located in the Volts/Amps diagram (refer to page 96).
TOU– Peak Demand Details
Double-click on the Peak Demand Details object in each parameter grouping to
displays peak demand information about that parameter.
Digital Inputs/Outputs
The Digital I/O diagram monitors all eight status inputs and six of the seven relay
outputs of the meter. The diagram displays the status (
ON or OFF) of each port. It
also keeps count of the number of input state changes. You can reset the status
change counter with the Reset Counter control object. For more information on
Digital I/O, refer to the technical note Digital and Analog I/O.
Inputs
The meter’s status inputs are de-energized when the meter is powered-up, so each
status will initially be
OFF.
Outputs
The meter’s status outputs remain N
OT AVAILABLE until they are configured using
ION Setup or Designer software (details for both applications are provided
elsewhere). Digital Output D4 is not shown in the Digital I/O diagram. Port D4 is
factory configured to output calibration pulses at a rate of 1.8Wh (del+rec)/pulse.