Remove power from the drive, Open the enclosure door, Check for zero volts at tb1 terminals +dc and -dc – Rockwell Automation 1336S, 1336F, 1336E, 1336T, 1336-SN-SP18A Snubber Board Kit User Manual

Page 15: Check for the absence of control voltage at, Remove the ground wire from the enclosure door

1336-5.39 – August, 1999

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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:

–

TB10

–

TB11

–

L-Option Board (if used)

5. Remove the ground wire from the Enclosure door.

6. Disconnect the following from the Main Control Board:

–

J1 connector

–

J5 ribbon cable connector

–

J7 connector

–

Ground wires from terminal block TE

–

Chassis ground wire at the top-right corner of the
Main Control Board Mounting Plate

7. Remove the nuts at the top of the Main Control Board Mounting

Plate.

8. Remove the two screws at the bottom of the Main Control Board

Mounting Plate.

9. Lift the Main Control Board Mounting Plate out of the drive.

10. Continue with “Gate Driver Board and Precharge Board

Drive shown with door open, sides removed.