Power and Control Wiring

4.5Power Supply

The STS2/PDU is supplied with redundant power supplies that are designed to operate from a voltage range of 200V to 600V. The unit is set at the factory to match the nameplate voltage. Field adjust- ments are not necessary. If the unit needs to operate at a voltage other than what is listed on the nameplate, contact Liebert Global Services or your local Liebert representative. Table 6 provides transformer tap information.

Table 6

Terminal block 1 and terminal block 2 wire connections

 

 

 

 

 

 

 

Connect

Connect

 

Voltage

 

 

 

 

Jumper Between

F1 TB1-XX

F2 TB1-YY

F3 TB2-XX

F4 TB2-YY

 

 

 

 

 

 

200

1

9

1

9

1-7

 

 

 

 

 

 

220

2

12

2

12

6-8

 

 

 

 

 

 

380

1

8

1

8

2-7

 

 

 

 

 

 

415

1

10

1

10

4-7

 

 

 

 

 

 

600

1

12

1

12

6-7

 

 

 

 

 

 

208

1

10

1

10

1-7

 

 

 

 

 

 

240

1

11

1

11

1-7

 

 

 

 

 

 

400

1

9

1

9

3-7

 

 

 

 

 

 

480

1

11

1

11

5-7

 

 

 

 

 

 

! CAUTION

Using Table 6, ensure that the wiring for the control transformers matches the input voltage for the unit.

Improper wiring could result in blown fuses.

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Liebert PDUTM, STS2 manual Power Supply, Terminal block 1 and terminal block 2 wire connections