Procedure A, Task 3: Customer's electrician
This task is performed by the customer's electrician.
Procedure
1. Working with the Dell EMC Customer Engineer, turn ON all the relevant circuit
breakers in customer-supplied PDU 2.
Verify that only power supply and/or SPS LEDs in power zone A are ON or
flashing green in every bay in the array.
The bay is incorrectly wired if all (power zone A and B) power supply
and/or SPS LEDs in a bay are ON or flashing green. Check that the AC
power to both storage bay power zones is not supplied by a single PDU
(customer-supplied PDU 2). The wiring must be corrected before moving
on to the next step.
2. Turn OFF the relevant circuit breakers in customer-supplied PDU 2.
Verify that the power supply and/or SPS LEDs that turned green in the
previous step changed from green to OFF and/or flashing yellow. The yellow
SPS lights flash for a maximum of 5 minutes.
Power supplies connected to an SPS continue to have green lights ON while the
SPS yellow light continues to flash indicating the SPS is providing on-battery
power.
3. Repeat step 1 and step 2 for power zone B and customer-supplied PDU 1.
4. Turn ON all the relevant circuit breakers in customer-supplied PDU 1 and
customer-supplied PDU 2.
5. Label the PDUs as described in Applying PDU labels on page 25.
Best Practices Guide for AC Power Connections
Procedure A, Task 3: Customer's electrician 21
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