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Table 6
Remote Source Selection Terminal Block
Contact
1
Source 1
2
Isolated ground
3
Source 2
4
Isolated Ground
5
DO NOT USE
6
DO NOT USE
See 10.3 - Enabling Remote Source Selection on page 61 for instructions on enabling the
Remote Source Selection option.
5.6
Power Supply
The STS2 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 the local Liebert representative. Table 7 provides
transformer tap information.
Table 7
Terminal Block 1 and Terminal Block 2 Wire Connections
Voltage
200
208
220
240
380
400
415
480
600
CAUTION
!
USING TABLE 7, ENSURE THAT THE WIRING FOR THE
CONTROL TRANSFORMERS MATCHES THE INPUT VOLTAGE
FOR THE UNIT.
IMPROPER WIRING COULD RESULT IN BLOWN FUSES.
Connection
Connect
F1
F2
TB1-XX
TB1-YY
1
9
1
10
2
12
1
11
1
8
1
9
1
10
1
11
1
12
Connect
F3
F4
TB2-XX
TB2-YY
1
9
1
10
2
12
1
11
1
8
1
9
1
10
1
11
1
12
Power and Control Wiring
Jumper
Between
1-7
1-7
6-8
1-7
2-7
3-7
4-7
5-7
6-7
17
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