3. 3 Cable Connection
3.3.1 Connecting Input and Output Cables
1. Input cable connection: If the UPS is connected via the power cable, please use a proper socket with over
current protection, and pay attention to the capacity of the socket: over 10A for 1K(S/L), over 16A for 2K(S/L)
and 3K(S/L). A side of input wiring has been fixed with the UPS, and the other side is just need to plug into the
input socket. The wiring configuration is shown in the following diagram.
Figure 3-1 Connection method of input
2. Output cable connection: The output of 1K(S/L)/ 2K(S/L)/ 3K(S/L) all available to uses sockets. The total
output power shall not exceed 1kVA/0.8kW, 2kVA/1.6 kW, 3kVA/2.4 kW. Simply plug the load power cable to
the output sockets of UPS to complete connection as shown in the following diagram.
Figure 3-2 Connection method of output
3.3.2 Operation Procedure of External Battery.
The battery connection procedure is very important. 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 (or
24VDC), 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.
Figure 3-3 Battery connection diagram for long backup time models
Note:
The length of the external battery cable is 1.6 m, If users need a longer one, please consult the distributor. There
is a limit to the length of the external battery cable to ensure normal operation of the UPS.