GE Industrial Solutions CPS6000 - Manual (Page 147)

CPS6000 –48V Indoor/Outdoor Power Shelf
Issue 21 January 2008
147
Remote Voltage Monitor Module
The ES771A Remote Voltage Monitor Module connects to the Auxiliary Port Connector on
controller. It takes the voltage measurements from the VT-Probe and transmits them to the
system controller in performing voltage imbalance detection. It also transmits the thermal
data from the VT-Probes for slope-thermal compensation.
Figure 11-2: ES771A Remote Voltage Monitor Module
J10, J20
RJ-45 connectors that connect the ES771A to the Distribution Module or to another ES771A
using 848652947 cable or other appropriate cable assemblies.
J30
Connects the ES771A to the VT-Probes using either the 848719803 (5-ft) or the 848719811
(10-ft) cables.
J1, J2, J3
Input connectors for the battery voltage from the VT-Probes. They accept the right-angled
snap-fit connectors on the 848719829 cable assemblies.
ID Switch
A seven-position rotary ID switch used by the QS841A to individually address the ES771A.
A setting of 0 produces and invalid ID alarm. Valid ID settings are from 1 through six.
Status LED
The module illuminates its green LED when plugged into the 1-wire network and with the
VT-probe attached to negative battery terminal of the mid-string voltage. The LED will
illuminate red when the controller determines that one or more of the strings from the unit has
exceeded the Mid-String Voltage threshold and time considerations.