DS8000 Service Documentation Version 7.5

MAP2040 Check primary power supply input circuit breaker

The primary power supply input circuit breaker is being reported as not in the on position.

Related tasks:
How to start the service information center

MAP2040 Section-1

Procedure

  1. Inspect the input circuit breaker on the primary power supply (PPS) listed in the FRU list. Find the condition that applies. The circuit breaker switch is:
    • In the middle position, neither completely up nor completely down. Go to step 2.
    • In the completely up position. Go to step 3.
    • In the completely down position. Go to step 4.
  2. The input circuit breaker is in the center position because it is tripped as a result of an over current condition inside the PPS. Do not reset the circuit breaker. Return to the screen that sent you here to continue the repair process and replace the PPS FRU.
  3. The input circuit breaker is in the completely up position, which is the normal position. The PPS has previously reported that the breaker was manually tripped and then manually closed. Either someone manually tripped/closed the breaker or the PPS is incorrectly reporting that it detected a manual trip/close. Attempt to determine from the customer whether there has been any manual intervention on the machine. If this is the first occurrence, close the serviceable event and exit this MAP. If this is the second (or more) occurrence of such event and there was no known source of manual intervention (including the customer), then return to the screen that sent you here to continue the repair process and replace the PPS FRU.
  4. The input circuit breaker is in the completely down position, which is the normal position when it has been manually switched off. Determine who switched it off and why.
    • If it was switched off as part of a repair procedure, return to that procedure and continue.
    • If you cannot determine why it was switched off, go to the next step.
  5. Observe the LED status display on the front of the PPS.

    Is an error code displayed?

    • No, go to the next step.
    • Yes, display and repair any related serviceable events.
      • If there are none, go to MAP2340 Codes on the PPS status display.
      • If the error indicates that the circuit breaker is off (display = I4), then go to the next step.
      • If the error is internal to the PPS, replace the PPS.
      • If the error is not internal, contact your next level of support.
  6. The functional code may have fenced the PPS (removed it from active use) as part of the error recovery. Determine if the PPS has been fenced.
    1. From the navigation area, click Storage Facility Management > storage facility.
    2. From the bottom Task area, click Service Utilities > View Storage Facility State.
    3. A window displays the status (passed/failed) of 25 or more system checks.
    4. At the bottom of the System Check Type column, observe the status of the Fenced Resources.

    What is the status of the Fenced Resources?

    • PASSED, no resources are fenced. If the error code from step 5 above indicated that the breaker was off (I4), then flip the breaker to the up (On) position. Close the serviceable event and exit this MAP.
    • FAILED, go to the next step.
  7. Display details about the Fenced Resources.
    1. Select Fenced Resources in the list.
    2. Click Details. The Details window is displayed.

    Is the PPS listed as a fenced resource in the Details window?

    • Yes, go to the next step.
    • No, the PPS is not fenced. Close the serviceable event and exit this MAP. There should be serviceable events for resources that are fenced. These should be repaired.
  8. Reset the PPS fence by doing a pseudo repair of the PPS FRU.
    1. Return to the repair screen that sent you here.
    2. Do a pseudo repair of the FRU. A pseudo repair of the PPS means that you use the normal FRU replacement procedure, and DO NOT disconnect cables and replace the PPS when prompted by the parts replacement procedure. Ignore the prompts to reconnect the cables.