Rockwell Automation 2090-UCSR-A300 300 W Active Shunt Regulator - Manual (Page 6)

Publication 2090-IN002C-EN-P — June 2007
6 300 W Active Shunt Regulator
Wire the Active Shunt Module to a Drive
It is recommended to use shielded, high temperature (75 °C, 600V), 4.0 to 2.5
mm
2
(12 to 14 AWG) copper wire, or run the wire through shielded conduit.
The maximum length of each wire should be 3.05 m (10 ft) with the shield
grounded at both ends. Unshielded wiring should be kept as short as possible.
1. Locate the terminal block on your active shunt.
2. Wire the +DC Bus connection to the positive (+) bus connection of the
drive, and the -DC Bus connection to the negative (-) bus connection of
the drive.
3. Wire the AC Line Detect to the respective terminals (L1, L2/N) of the
drive or its ac power source.
The shunt module will actively sense when ac power is lost to the drive
and after 0.25/s, it will drop the dc bus.
4. Wire the Chassis ground to earth ground.
5. Tighten the terminal block screws to 1.2 Nm (11 lb-in).
6. Gently pull on each wire to make sure it does not release from its terminal.
7. Reinsert and tighten any loose wires.
IMPORTANT
The dc bus connections should only be used to
connect a single drive to the active shunt module.
Contact your Allen-Bradley representative for further
assistance if your application requires additional dc
power connections.