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3 Installation
Figure 3-2 Connection method of output
3.3.2 Operation Procedure of External Battery for Long Backup Time
UPS
The battery connection procedure is very important for long backup model.
Any incompliance may result in the risk of electric shock. Therefore, the
following steps must be strictly complied with.
1. First connect in series the batteries of the pack to ensure proper battery
voltage that 1KS/1KL for 36VDC, 2KS/2KL for 72VDC (or 96VDC),
3KS/3KL for 96VDC (or 72VDC).
2. Take out the battery cable delivered with the UPS, one end of the external
battery cable is a plug for connecting the UPS, the other end has 3 open
wires for connecting the battery pack.
3. Connect the external battery cable to the battery terminal (DO NOT connect
the battery socket of the UPS first. Otherwise, it may cause electric shock).
Connect the red wire to the “+” terminal of the battery. The black wire is
connected to the “-” terminal of the battery. The green/yellow wire is
grounded for protection purpose.
4. Connect the plug of the external battery cable to the external battery slot on
the rear panel of the UPS to complete the connection procedure.