Allen-Bradley 23PFC, Hardware Service Manual

Page: 60 / 150

60 Rockwell Automation Publication 23PFC-TG001A-EN-P - March 2018
Chapter 3 Frame A Field Controller Part Replacement Procedures
8. Turn the board over and remove the two M3 x 6 mm screws and washers
that secure the AC current transducers to the board. Remove the AC
current transducers and windings (if present) from the device.
9. Continue with Install the AC Current Transducers on page 62 .
Remove the AC Current Transducers from 120 A Field Controllers
10. Remove the power connections from terminals U and V at the bottom
of the device.
11. Remove the M4 x12.5 mm screws and washers that secure each of the
AC current transducers to the U and V phase terminal bus bars.
IMPORTANT You do not need to remove the windings from the AC current
transducers. However, note the number of times the wire lead is
wound around the AC current transducers for proper installation of
the new AC current transducers.
IMPORTANT Mark all connections and wires before removal to avoid incorrect wiring
during reassembly.
8
Torque Specification:
0.5 N•m (4.4 lb•in)
11
Torque Specification:
3.0 N•m (26.5 lb•in)
10
(U phase)
10
(V phase)