Emerson 721NPBB Manuale Utente
UM582127000
User Instructions
Issue AC, January 2, 2013
Spec. No. 582127000 (Model 721
NPBB
)
Page 50
Chapter 4. Troubleshooting and Repair
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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.
Figure 4-15
Optional LVD Driver Lite Circuit Card Connector Locations
Notes:
1. Connects up to (2) LVD
1. Connects up to (2) LVD
contactors rated at 600A or less.
2. Only one (1) contactor per level
can be accommodated. J2 and J3
are on Level 2, only one (1) of these
connectors can be used at a time.
are on Level 2, only one (1) of these
connectors can be used at a time.
3. Switch and indicator located
on circuit card installed in
Main Bay only.
Main Bay only.
J1
To LVLD contactor, uses ACU+
LVD1 control setting (Level 1).
To LVLD contactor, uses ACU+
LVD1 control setting (Level 1).
J3
To LVLD contactor, uses ACU+
LVD2 control setting (Level 2).
To LVLD contactor, uses ACU+
LVD2 control setting (Level 2).
J2
To LVBD contactor, uses ACU+
LVD2 control setting (Level 2).
Can only be used if it is contained
in a List 21 (1-row) cabinet.
To LVBD contactor, uses ACU+
LVD2 control setting (Level 2).
Can only be used if it is contained
in a List 21 (1-row) cabinet.
J1
J3
J2
S1
DO NOT change a Low Voltage
Load Disconnect contactor to
LVD Control Level 2 (LVD2) if
the system is furnished with a
Low Voltage Battery Disconnect
contactor.
Load Disconnect contactor to
LVD Control Level 2 (LVD2) if
the system is furnished with a
Low Voltage Battery Disconnect
contactor.