Rockwell Automation WebPak 3000 User Guide - Manual (Page 67)

Troubleshooting the Drive Using the OIM 7-9
You must remove the OIM assembly from the drive to replace the circuit board. See
section 7.6.1, “Preparing to Replace the OIM”, and section 7.6.2, “Accessing the OIM
and Disconnecting It from the Regulator Board”, for instructions.
To replace the circuit board:
Step 1. Place the OIM assembly face down on a surface that will not scratch the OIM
front panel.
Step 2. Remove the four screws holding the circuit board to the mounting plate.
Step 3. Lift the circuit board from the standoffs. Remove the washers if they detach
from the screws.
Step 4. Place the new circuit board on the standoffs. Make sure the 20-pin
connector is properly aligned with the matching header on the Regulator
board (J3).
Step 5. Tighten the four screws holding the board to the mounting plate.
Step 6. Connect the ground wire from the drive to the ground terminal on the OIM
mounting plate.
Step 7. Replace the four screws securing the OIM assembly to the drive.
Step 8. Connect the communication cable from the OIM assembly to J9 on the
Regulator board.
Step 9. Replace the drive front cover and tighten the screws, securing it to the drive
enclosure.
7.6.4 Replacing the Entire OIM Assembly
Follow this procedure if you are replacing the entire OIM assembly. If you are replacing
the circuit board, see section 7.6.3, “Replacing the OIM Circuit Board Only”.
You must remove the old OIM assembly from the drive before replacing it. See
section 7.6.1, “Preparing to Replace the OIM”, and section 7.6.2, “Accessing the OIM
and Disconnecting It from the Regulator Board”, for instructions.
To replace the OIM :
Step 1. Connect the ground wire from the drive to the ground terminal on the OIM
mounting plate. If you are replacing an older version of the OIM , you might
need to use the hardware from the old unit.
Step 2. Replace the four screws securing the OIM assembly to the drive.
Step 3. Connect the communication cable from the OIM assembly to J9 on the
Regulator board, making sure that it locks into place.
Step 4. Replace the drive front cover and tighten the screws, securing it to the drive
enclosure.
7.7 Resetting the Clock
The elapsed time clock on the drive displays the day and time since the last power
cycle or clock reset. The time is based on an internal 248-day counter.