Rockwell Automation 2LW3000 LonWorks Communication Option Module for VTAC 7 Drives - Manual (Page 20)

3-6 LonWorks Module for VTAC 7 Drives
Step 4.4 Fasten the LonWorks module to the right side of the keypad bracket using
the two metal M3 screws and lock washers for proper grounding. Fasten the
left side using the two 6-32 screws and lock washers for proper grounding.
Important: You must use the lock washers to properly ground the LonWorks module.
Improper grounding of the LonWorks module can result in erratic operation
of the drive.
Step 5. Reinstall the Keypad Bracket in the Drive
Step 5.1 Reconnect the internal fan assembly power connector (CONN7) to the
drive. Align the key on the connector with the slot in the receptacle. Press
the connector into position.
Step 5.2 Reinstall the Current Feedback board. Carefully align the two sets of
connector pins on the Current Feedback board with their matching
connectors on the drive. Gently press the board into place. The board
should go in easily. If you feel resistance, a pin might be bent or misaligned.
Recheck alignment and retry installation.
Step 5.3 Inspect the Current Feedback board connector thoroughly for bent or
misaligned pins.
Step 5.4 Align the keypad support bracket with the mounting holes in the drive heat
sink. Fasten the bracket with the three M4 x 10 screws removed earlier.
Step 5.5 Align the Regulator board’s 26-conductor ribbon cable connector with the
Current Feedback board connector. Press it in until it locks into position.
Step 5.6 Reconnect any wiring that was removed from the Regulator board terminal
strip. Refer to the terminal connections documented in step 3.1 or to the
appropriate instruction manuals for the devices being used.
Step 5.7 NEMA 4X/12 drives only: Before installing the cover, check that the gaskets
on the cover are flat and within the gasket channels.
Step 5.8 Reinstall the cover. Align all cover screws into the heat sink before
tightening any of them.
To maintain the integrity of NEMA 4X/12 drives, sequentially tighten the
cover screws to ensure even compression of the gaskets. Do not exceed
2.2 Nm (20 in-lb) of torque on these screws.
!
ATTENTION: Proper alignment of the Current Feedback board is critical.
Verify that the connector pins on the Current Feedback board are
correctly aligned with their corresponding connectors on the drive.
Failure to observe this precaution can result in bodily injury.