Dc Bus And Shunt Power Connectors; Diode Bridge And Dc Bus Positive - P1 And P2; Internal Shunt Resistor - B1 And B2; Motor Power Connectors - Allen-Bradley Ultra1500 2092-DA1 User Manual

2-26 Ultra1500 Connector Data
Publication 2092-UM001D-EN-P — July 2005

DC Bus and Shunt Power Connectors

The following power connections are made to an Ultra1500 drive through a
four position terminal connector.
Diode Bridge and DC Bus Positive – P1 and P2
P1 is an output from the diode bridge of the Ultra1500 drive.
Note: P1 is jumpered at the factory to P2. Replacing the jumper with an
inductor may improve harmonic distortion.
P2 is the positive side of the DC power bus on all Ultra1500 drives.
Note: The negative side (-) of the DC power bus is provided by the N
terminal on the Main Input Power connector (and is labelled DC- on
the removable connector).
Internal Shunt Resistor – B1 and B2
B1 and B2 are connections for the internal shunt resistor. B1 connects to the
positive (+) shunt terminal and B2 connects to the negative (-) shunt terminal.
Note: The B1 and B2 terminal are not used with the 2092-DA1 and
2092-DA2 drives, as these drives do not have internal shunt resistors.

Motor Power Connectors

The U, V, and W phases of motor power are provided by an Ultra1500 drive
through the three-position terminal connector. The motor power cable
attaches to this terminal.

Ground Connection

The location of ground connections for the Ultra1500 drives are shown in
Figure 2.26.
•
The 2092-DA1 and 2092-DA2 drives have one ground screw, which is
shared with the AC power ground connection. It is located on the side of
the drive, in the lower front area of the heatsink.
•
The 2092-DA3, 2092-DA4, and 2092-DA5 drives have two grounding
screws. One screw for motor power and one screw for input power. They
are located on the front of the heatsink.