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10 Chapter 2 Installation Instruction
NetSure 531 AC1 Power Supply System User Manual
LLVD MCB
PCB board of the
controller
BLVD MCB
Battery MCB
DC positive busbar
Figure 2-11 Connection terminals
Connecting battery cables
Note
1. The batteries may have dangerous current. Before connecting battery cables, make sure that the battery fuses at the system side
(shown in Figure 2-8) and the battery MCBs at the battery side are switched off. If there are no battery MCBs at the battery side,
users should disconnect any one of the connectors between battery cells to avoid live state of the power supply system after
installation.
2. Be careful not to reversely connect the battery. Otherwise, both the battery and the power supply system will be damaged!
3. When users install batteries, batteries in the lowest layer should be installed firstly, and batteries in the most upper layer should
be installed lastly. When users remove batteries, the batteries should be removed in a reverse order, to prevent turnover of the
cabinet.
1. Cable connection of M+ cabinet
The battery cables are connected at the factory. When connecting batteries, pull out the heat shrinkable tube
wrapped around the cable terminals and connect the battery cables to the positive and negative terminals of the
batteries.
2. Cable connection of S cabinet
The battery cables of S cabinet are accessories. The cable connection procedures are as follows:
1) Connect one end of the negative battery cable to the upper terminal of the battery MCB. According to
Appendix 6
Wiring Diagram
, connect one end of the positive battery cable to the positive busbar. The connection terminals are
shown in Figure 2-11.
2) Route the battery cables through top cover of the power supply system and battery cable entry holes of the battery
cabinet. Bind the cables beside the battery. Wrap all the bare parts of the cable terminals with insulating tape. Do not
connect the cables to the battery until the DC distribution unit is to be tested. The positions of the battery cable entry
holes are shown in Figure 2-12.
Содержание NetSure 531 AC1
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