Determining Your Type Of Input Power; Grounded Power Configuration - Allen-Bradley Ultra1500 2092-DA1 User Manual

Determining Your Type of
Input Power
Transformer (Delta) Secondary
Before you wire your Ultra1500 system you must determine the type of input
power you are connecting to. The Ultra1500 is designed to operate only in
grounded environments.

Grounded Power Configuration

The grounded power configuration allows you to ground your single-phase or
three-phase power at a neutral point. Match your secondary to one of the
examples below and be certain to include the grounded neutral connection.
Figure 3.1
Three-Phase Power Configuration (WYE Secondary)
Transformer (WYE) Secondary
Figure 3.2
Three-Phase Grounded Power Configuration (Delta Secondary)
L1
Ultra1500 Three-Phase AC Input
L3
2092-DA4 and -DA5
L1, L2, and L3 Terminals
L2
Bonded Cabinet Ground Bus
Ground Grid or Power Distribution Ground
Bonded cabinet
ground bus
Ground grid or
power distribution ground
Transformer (Delta) Secondary
Connecting Your Ultra1500
L1
L2
Ultra1500 Three-Phase AC Input
2092-DA4 and -DA5
L3
L1, L2, and L3 Terminals
L1
Ultra1500 Three-Phase AC Input
L2
2092-DA4 and -DA5
L1, L2, and L3 Terminals
L3
Publication 2092-UM001D-EN-P — July 2005
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