Rockwell Automation 20B PowerFlex 700 Drive Components Replacement - Frame 8 - Manual (Page 36)

36 Rockwell Automation Publication 20B-IN024C-EN-P - June 2012
Chapter 3 Component Replacement Procedures
5. Disconnect both ribbon cables from the left side of the main control board.
6. Hold the communications panel and release the cable at the bottom of the
panel from its clamp (see previous page for its location) and set the
communications panel aside.
7. If needed, unscrew and disconnect the connector from the main control
board for the wire set going to TB11.
Do not disconnect any wires from TB11.
8. If present, unscrew the two screws for the encoder board. Gently pull off
the encoder board.
9. Unscrew the four screws and two hex standoffs holding the main control
board.
10. Remove the main control board.
Install Components
1. Install the new main control board with four screws and two hex standoffs.
Torque the screws and standoffs to 2 N•m (14 lb•in).
2. Install the encoder board (if the optional encoder board was installed)
with two screws. Be sure to match up the J7 connectors. Torque the screws
to 2 N•m (14 lb•in).
3. Connect the ribbon cable and TB11 cable connector to the main control
board.
4. Torque the two mounting nuts at the top of the communications panel to
5.6 N•m (50 lb•in).
5. Torque the two screws on the communications panel near TB11 to 3 N•m
(26 lb•in).
6. Torque the screw for the green/yellow ground wire from TB11 to the
HIM cradle/board to 1.6 N•m (14 lb•in).
7. Replace all safety shields and enclosure covers before applying power to the
drive.
Ribbon Cable
(1 of 2)
Main Control
Board Screws (4)
TB11 Cable
Connector
Main Control Board
Encoder Board
(Optional)
Encoder Board Screws (2);
Hex standoffs (2) are
between both boards