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Chapter 2 Installation 11

2.2.4 Voltage Inputs

690V Inputs (Standard):

690V inputs are usually used with direct connection. Use any of the

seven wiring configurations shown in Figures 2-5 through 2-11.

120V Inputs (Option U):

120V inputs usually implies use of a potential transformer (PT).

The PT requires use of any of the four wiring configurations shown

in Figures 2-7 through 2-10.

Wiring Configurations 'Wiring Mode' Definition

(See parameter setup instructions in Section 4.1)

3-wire direct connection using 2

CTs (2-element)

3dir2 (Figure 2-5)

4-wire WYE direct connection

using 3 CTs (3-element)

4Ln3 or 4LL3 (Figure 2-6)

4-wire WYE connection using 3

PTs, 3 CTs (3-element)

4Ln3 or 4LL3 (Figure 2-7)

3-wire open delta connection

using 2 PTs, 2 CTs (2-element)

3OP2 (Figure 2-8)

3-wire open delta connection

using 2 PTs, 3 CTs

(2½ -element)

3OP3 (Figure 2-9)

4-wire WYE connection using 2

PTs, 3 CTs (2½-element)

3Ln3 or 3LL3 (Figure 2-10)

4-wire delta direct connection

using 3 CTs (3-element)

4Ln3 or 4LL3 (Figure 2-11)

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