GE Industrial Solutions GE Zenith Series DPB - Manual (Page 40)

32 Installation & Operation Manual, GE Series DPB Busway
March 25, 2013, Rev 0 GE Confidential
Series DPB BuswayInstallation & Operation Manual
SYSTEM DESCRIPTION
This monitoring system is designed for use with the GE Series DPB Busway to provide detailed power parameter information
for the busway input feeders (End Feed Boxes) and branch circuits of the power distribution boxes (Tap Off Boxes). The system
consists of a Communications Hub module located on the End Feed Box which can acquire power information from the
busway input feeders and the branch circuits of Tap Off Boxes equipped with the Branch Circuit Monitoring System (BCMS). The
system is capable of monitoring the power infrastructures of Mission Critical, Industrial and Commercial facilities.
The Series DPB Busway busrail is equipped with an integrated communication cable inside a channel along the bottom of
the rail section. Communication connectors (see Figure 22) are distributed equally along the span of a bus rail to enable
interconnection to each Tap Off Box.. This allows a BCMS-equipped Tap Off Box to communicate with the Input PM /
Accumulator PCBs of the communication hub via a communication receptacle and the interface cable. (see Figure 22 -
Series DPB Branch Circuit Monitoring System Overview)
Information collected by the Input PM / Accumulator is outputted via Modbus™ RTU through a serial port which can be
routed to a local display as well as via an Ethernet gateway and/or to a customer-supplied monitoring system.
There are two different levels of firmware available – BCMS Basic -Current only, and BCMS Plus – Current Plus Voltage.
See Appendix A, TAP OFF BOX MONITORING SPECIFICATIONS, and Appendix B, END FEED (INPUT PM BOARD) MONITORING
SPECIFICATIONS.
POWER MONITORING SYSTEM OVERVIEW
The power monitoring capabilities of the system may be configured as follows,
Option 1 - Tap Off Box Monitoring Only (see pages 30-32)
Option 2 - End Feed Monitoring Only (see pages 33-35)
Option 3 - Tap Off Box and End Feed Monitoring Concurrently (see pages 36-39)
Figure 22 - Branch Circuit Monitoring System Overview