1. Power on the control enclosure, if it is not already powered on and configured.
Use the power switch on each of the two power supply units, located in the
back of the enclosure.
2. Use Table 19 to verify the state of the LEDs on the system. Verify that no faults
are detected.
Figure 46 shows the location of the LEDs on the power supply units in the rear of
the control enclosure.
Table 19. LED status when control enclosure is powered on
Hardware component LED name
If power on and no fault is
detected
Left enclosure end cap, front
of enclosure
Power, top
LED is on.
Fault, middle
LED is off.
Identify, bottom
LED is off.
svc00670
1
1
Figure 46. LEDs on the power supply units of the control enclosure
Chapter 2. Performing the hardware installation 59
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