User Manual

1336-5.39 – August, 1999
I-17
1. Remove power from the drive.
2. Open the Enclosure door.
3. Check for zero volts at TB1 terminals +DC and -DC.
4. Check for the absence of control voltage at:
– TB2
– TB3
5. Disconnect the following from the Main Control Board:
– J2 ribbon cable connector
– J1 connector
– Ground wire at terminal block TE
– J10 ground wire at the stake-on connector
– J6 connector
– J8 connector
– All wires from the terminals on TB2 and TB3
6. Remove the nuts at the top of the Main Control Board Mounting
Plate.
7. Remove the two screws at the bottom of the Main Control Board
Mounting Plate.
8. Lift the Main Control Board Mounting Plate out of the drive.
9. Continue with “Gate Driver Board and Precharge Board
Mounting Plates” on page I-20.
Drive shown with door open, sides removed.