GE Industrial Solutions Mini-BDFB - Manual (Page 10)

Micro-BDCBB ED83368-30
850027449 Issue 1 DRAFT December 2012 10
Programming the Meter
VIM1 parameters like shunt size and number of load buses are preconfigured when it is factory installed in a
BDFB/BDCBB or Micro-BDFB. Only customer specific preferences need to be adjusted in the field. As a
replacement or mete upgrade, the factory default settings may need to be adjusted for the application. Listed
below are the configurable parameters and their associated factory defaults available through the front panel.
Following the table are the typical items that need to be configured or verified in a retrofit or replacement
application.
System Parameters Description
System Voltage
Used to identify system voltage. Selectable between 24V and 48V. Factory default is
48V.
Local Buzzer
Allows the integrated audible alarm to be Enabled or Disabled. Factory default is
Disabled.
Display Contrast
Allows the display contrast to be adjusted for the local ambient lighting. Adjustable
from 0-100% in 1% increments. Factory default is 50%.
Software Version
Displays the version of the application code running in the meter in the format
(vX.Y). Version 1.5 is the latest as of this printing.
Load Parameters Description
Number Of Loads
Used to identify the number of individual loads/buses in the distribution. Value
configurable from 1-8. Factory default is 6.
Meter Type
Configures meter to display individual monitored bus voltages (voltage), voltages
and currents (volt_curr), or only currents (current). This configuration is defined by
the internal wiring of the distribution. Factory default is Voltage and Current
(volt_curr).
Load ID Format
Configures display format used in referencing individual DC loads/buses.
Allowable formats: A1, A, and 1. “A1” identifies loads using an A1, B1; A2, B2; …
format. “A” identifies loads using an A, B, C, D ... format. “1” identifies loads using a
1, 2, 3, 4 … format. Factor Default is to use the A1 format.
First Load (location)
Used to indicate where the first load in the distribution is located. Allowable
configurations are: top-left, top-right, btm-left (bottom-left), btm-right (bottom-
right). Every monitored shunt is considered a load. Factory default is “top-left”.
Shunt Rating
Used to define the current rating of the shunt in the load bus. All shunts in the
load must be of the same size. A 50mV shunt is assumed. Allowable range is 1-
4000A. The factory default is 800A.
Overload Latch
A single configuration for all panels/buses that allows a temporary Over Load
event to be latched. Factory default is “Disabled”.
Combined Load
Displays the load value as one combined sum by adding up all shunts in the
system and presenting it as values for a single load. Factory default is disabled.
Load Available
(A1-A4;B1- B4)
Indicates if the load is available or in use. Allowable configurations are “installed”
and “not installed”. “Installed” loads imply that the load is in use. “Not Installed”
loads imply that the load may be present, but it is not in use. Information
obtained from the load should not be relevant. Factor default is set to be
“installed”.
Load Power Loss
The Power Loss (PL) alarm is triggered upon loss of the primary DC or when the
individual’s panels’ DC input has reached the configured low voltage threshold.
This Power Loss voltage threshold is configurable between 40.00-60.00V for 48V
systems and 20.00-30.00V for 24V systems. Factory defaults for these thresholds
are 40.00V and 20.00V, respectively.
Load Overload
Type
The Power Overload Type defines whether the smart meter is to treat the
Overload alarm event for a “Single Bus” or for an “Redundant Bus” configuration.
The “Single Bus” configuration is based on straight Overload threshold being
exceeded. The “Redundant Bus” configuration causes the VIM1 to sum the two
respective left and right load shunt measurements and compare it to the
individual overload thresholds configured for the each of the respective panels in
the pairing. The lowest Overload value threshold configured for the Redundant
loads shall take priority and be used in the comparison. Once the “Redundant
Bus” measurement exceeds this threshold, the controller asserts the Over Load
(OVL) alarm. Factor default is “Single Bus” configuration”.
Load Overload
The Load Overload (OVL) alarm event is triggered when any measured panel
currents exceed their respective configured thresholds. These OVL thresholds
can be configured from 1-4000A. Factory default is 800A.