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Installation
MicroHarmony Cell Sizes 40 - 260A Manual
3.3 System Installation and Removal
A DC bus indicator light is located at the front of the cell on the cell control board and will stay lit at bus voltages
greater than 50VDC. The cell should not be touched, removed, or serviced if the indicator is illuminated. Remember
that the cell chassis is not grounded and when energized can float to lethal voltages.
Refer to Section 1.2.1, "Cell Racking System," for details.
3
Figure 3-1: System Installation and Removal
The cell is installed by first placing the cell with the power plugs facing the rear of the drive on the mounting rails.
The locking latches should point towards the front of the drive. The cell is then pushed along the rails until the
locking latches can be rotated upwards 90 degrees, and latch into the mounting rail slot. Be sure that the latches slide
through the mounting rail slots. As the latches are rotated simultaneously, the cell will self-align and insert the blind
mate power plugs into the system I/O bus at the rear of the enclosure. The latches are locked in place when both
latches are pointing upward.
The cell is removed by simultaneously pulling down on the locking latches. As the latches are pulled down, the cell
will pull away from the rear I/O bus. Once the latches are pointing toward the front of the drive, the cell can be pulled
out of the drive by sliding the cell along the mounting rails.
When the cell is removed, check the condition of the back plane foam tape and replace if needed.
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3-2
19001467: Version 1.0
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