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User Instructions UM582127000
Spec. No. 582127000 (Model 721NPBB) Issue AC, January 2, 2013
Chapter 2. Operating Procedures Page 9
This document is property of Emerson Network Power, Energy Systems, North America, Inc. and contains confidential and proprietary information owned by Emerson Network Power, Energy
Systems, North America, Inc. Any copying, use, or disclosure of it without the written permission of Emerson Network Power, Energy Systems, North America, Inc. is strictly prohibited.
Optional Manual Battery Disconnect Circuit Card (Main Bay Only)
The optional manual battery disconnect circuit card contains a manual battery disconnect
switch and indicator. Refer to Figure 2-5.
Figure 2-5
Optional Manual Battery Disconnect Circuit Card (Main Bay Only)
Momentary UP / Middle / Momentary Down
Momentary UP Position: Closes (latches in close position) the Battery Disconnect Contactor.
Middle Position: Normal Operation.
Momentary DOWN Position: Opens (latches in open position) the Battery Disconnect Contactor.
Momentarily place switch in the UP position to close the contactor.
Manual Battery Disconnect
Active Indicator
Manual Battery
Disconnect Switch
Illuminates if the Battery Disconnect Contactor has
been manually disconnected (placed in open position).
J1
J2
S1