16 Chapter 2 Single UPS Installation And Commissioning
Liebert
®
ITA 10kVA UPS User Manual
警告
危 险
Note
1. The UPS is high leakage current equipment, it is not recommended to configure the MCB with leakage current protection
function.
2. To ensure the reliable connection, the pipe type connection terminal (accessory of the UPS) is required for all cable
connections.
2.5.1 Connecting I/O Cables
The I/O cables of the UPS should be connected through the I/O terminal block located on the UPS rear panel.
Remove the protective cover A of the I/O terminal block shown in Figure 2-14 to reveal the I/O terminal block.
Figure 2-14 Protective cover A of the I/O terminal block
Figure 2-15 gives the terminals layout of the I/O terminal block.
Input neutral line terminal (N)
Input live line terminal (U)
Input ground line terminal (PE)
Input live line terminal (V)
Input live line terminal (W)
Input live line terminal (U1)
Output ground line terminal (PE)
Output live line terminal (L)
Output neutral line terminal (N)
Figure 2-15 Terminals layout of the I/O terminal block
警告
危 险
Note
1. Do not reverse-connect the input neutral line and the input live line.
2. Do not use a wall socket to feed power to the UPS. Otherwise, the socket may be burned.
3. Make sure that the connection of the neutral line, live line and earth line is correct and reliable when connecting the output
cables . For the sake of safety, the earth line must be connected firstly.
4. Install a three-pole or quadrupole linkage breaker on the mains input neutral line and live line to facilitate cutting power under
emergency conditions. Use correct power distribution method (see Figure 2-16) to ensure safety of the UPS and user
’s
equipment.
