APC G5USV040P005SAIO Datový list stáhnout pdf (Strana 25)

34001813EN/AF - Page 25

2. Installation

Redundant parallel configuration (maximum two UPS units for Pn)

This configuration does not have an external bypass.

UPS units with common normal and Bypass AC inputs

To access the connection terminal blocks, see section 1.2.

UPS units with separate normal and Bypass AC inputs

For TNC upstream installation, you must connect the earth-cable, See “Earth-cable connection for a TNC earthing

system”, page 23.

To access the connection terminal blocks,

see section 1.2.

1 - The earthing conductors must be

connected to the earthing plate of each UPS.

2 - Connect the four conductors of the Bypass

AC source to terminal block (15) in each UPS

unit.

3 - Connect the three phases of the Normal

AC input (16) with the three phases of the

Bypass AC input (15) in each UPS unit.

4 - Connect the four conductors of the

supplied loads to terminal block (14) in UPS1.

5 - Connect terminal block (14) in UPS2 to

terminal block (14) in UPS1 using the four

load conductors.

6 - Tie the cables down to the cabinet frames.

7 - Put the covers back in place (see section

1.2).

To access the connection terminal blocks,

see section 1.2.

1 - The earthing conductors must be

connected to the earthing plate of each UPS.

2 - Connect the three phases of the Normal

AC source to terminal block (16) in each UPS

unit.

3 - Connect the four conductors of the Bypass

AC source to terminal block (15) in each UPS

unit.

4 - Connect the four conductors of the

supplied loads to terminal block (14) in UPS1.

5 - Connect terminal block (14) in UPS2 to

terminal block (14) in UPS1 using the four

load conductors.

6 - Tie the cables down to the cabinet frames.

7 - Put the covers back in place (see section

1.2).

Caution. If the two UPSs are placed side by side, connect as indicated above. In the other configurations, always make sure

that the cables between the UPSs and Bypass AC source have the same cross-section and the same length. The same is

true for the cables between the UPSs and the load.

N L1 L2 L3N L1 L2 L3L1 L2 L3

370 mm

N L1 L2 L3N L1 L2 L3L1 L2 L3

400 mm

N L1 L2 L3N L1 L2 L3L1 L2 L3

370 mm

To loadTo loadTo loadTo load

To normal / bypass

AC source

UPS 1

UPS 2

N L1 L2 L3N L1 L2 L3L1 L2 L3

370 mm

N L1 L2 L3N L1 L2 L3L1 L2 L3

To load

To bypass

AC source

To normal

AC source

UPS 1

UPS 2

1 2 ... 20 21 22 23 24 25 26 27 28 29 30 ... 67 68

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