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Rockwell Automation 2364 NRU/RGU DC Bus Energized Pilot Light and Legend Plate Replacement User Manual

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NRU/RGU DC Bus Energized Pilot Light and Legend Plate Replacement

What You Need to Do

To replace the DC Bus Energized pilot light and legend plate:

❐ Step 1: Remove power from the NRU/RGU

❐ Step 2: Remove the existing pilot light and legend plate

❐ Step 3: Install the new pilot light and legend plate

❐ Step 4: Reconnect the wires to the lamp terminals

Step 1: Removing Power
from the NRU/RGU

1. Turn off and lock out input power. Wait five minutes.

2. Verify that there is no voltage at the input power terminals.

3. Measure the DC bus voltage at the +DC & -DC terminals on the Power

Terminal Block. The voltage must be zero.

Step 2: Removing the
Existing Pilot Light and
Legend Plate

1. Open the cabinet door and disconnect the wires from the existing DC

Bus Energized pilot light terminals.

2. Unscrew and remove the existing pilot light operator assembly from the

mounting plate on the back of the cabinet door.

3. Using a standard screwdriver, depress the plastic tab of the lens assembly

where it is locked into the mounting plate and remove it.

4. Unscrew and remove the mounting plate from the cabinet door.

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