Exchange the DC-UPS battery service module (BSM) set

Before you begin

C004 caution notice
C008 caution notice

Icon for electrostatic discharge wrist strapUse approved ESD procedures to prevent damage.

Attention:
  • This procedure is not a stand-alone procedure. Customer disruption and damage to the hardware might occur when microcode and power boundaries are not in the proper conditions for this service action.
  • If a serviceable event FRU repair directed you to this procedure, the microcode and power boundaries are already set.
  • If a serviceable event FRU repair did not direct you to this procedure, see MAP1230 Replace a FRU without using a serviceable event.
Notes:
  • All the cables and FRUs to be removed must be uniquely identified so they can be reinstalled correctly.
  • The battery service module (BSM) set contains four battery modules.
  • The upper right BSM (Ex-E12-E1) is the primary and contains status LEDs. It can be physically installed only in the upper right position.
  • The other three BSMs (Ex-E12-E2, E3 and E4) are secondary BSMs. They can be physically installed only in those positions.
  • Each BSM (primary and secondary) has EEPROMs that store the "Born on date" and the service history.
  • All four BSMs in a set must be replaced at the same time, and must not be intermixed with a different BSM set.
  • Each BSM in the set share a common serial number on the Born On Date label.
  • You are using this procedure to exchange a BSM set. Unless directed by a MAP or next level of support, you must replace the FRU with a new FRU. Completing a "pseudo-repair" with an out-of-date or defective FRU, or closing a serviceable event without exchanging the FRU, can result in a customer event.
  • If an installed earthquake resistance kit prevents you from accessing this FRU, refer to MAP1600.

Remove the BSM set

Procedure

  1. The old BSM set being replaced must be returned in the same packing material and strapped to the pallet that the new modules arrived on.
  2. To locate this FRU, take one of the following actions and then return here and continue to replace the FRU:
    • If this FRU has a FRU identify indicator, use the FRU identify indicator, which is listed in MAP1240 Locating FRUs by using identify indicators. If not, use the location code.
      Note: There might be cases where the FRU failure or fencing conditions prevent the FRU LED indicator from being lit even if the FRU has power.
    • Use the location code, which is listed in MAP1245 Finding FRUs by using location codes.
    • If there is no FRU identify indicator or location code, you were sent here by an isolation MAP or symbolic FRU procedure. Use the information in that procedure and the figures in this procedure to locate the proper part to exchange.
    Figure 1. Battery service module (BSM) set locations (Models 98x single-phase power) (front)
    Battery service module (BSM) set locations (Models 98x) (front)
    Figure 2. Battery service module (BSM) set locations (Models 98x three-phase power) (front)
    Battery service module (BSM) set locations (Models 98x, three-phase power) (front)
  3. Most, but not all, FRUs have identify indicators. Use the flashing amber or solid blue FRU identify indicators to ensure that you are working on the correct enclosure or FRU.
  4. Remove the BSM set cover (if present) from the BSM set enclosure. Loosen the screws Callout label 1 at both sides to remove. See Figure 3.
    Figure 3. BSM set enclosure cover (Models 98x and 8xE, single-phase power) (front)
    BSM set enclosure cover (Models 98x, single-phase power) (front)
    Note: BSM set enclosure cover for single-phase power configuration shown, enclosure cover for three-phase power is similar.
  5. Are any of the following cables either unplugged or missing? See Figure 4 or Figure 5.
    • Callout label 3 and Callout label 6 BSM set signal cable. Note: Callout label 3 is permanently attached on later BSM set versions.
    • Callout label 2 and Callout label 5 BSM set 208V power cable
    • Yes, do not replace the BSM set. Instead, go to the next step, and when you are directed to replace the BSM set, connect the disconnected cable(s).
    • No, go to the next step.
    Figure 4. Battery service module (BSM) set for Models 98x, single-phase power, (front)
    Front view of Model 98x battery service modules, single-phase power
    Figure 5. Battery service module (BSM) set (Models 98x, three-phase power) (front)
    Front view of Model 98x battery service modules, three-phase power
  6. Remove the retaining screw Callout label 1 or Callout label 4 (Figure 4 or Figure 5) at the top of each battery service module that is being replaced.
  7. Leave all cables connected. Slide the primary BSM module out about 2.5 cm (1 inch). The BSM LEDs turn off.
  8. Disconnect the BSM signal cable from the three secondary BSM module J31 connectors. (Figure 6)
    Figure 6. Battery service module, secondary, locations (front)
    Battery service module, secondary, locations (front)
  9. Disconnect the BSM power cable from the three secondary BSM module J21 connectors. (Figure 6)
  10. Leave the BSM signal and power cables connected to the primary BSM module J30 and J20 connectors. (Figure 7)
    Figure 7. Battery service module, primary, locations (front)
    Battery service module, primary, locations (front)
  11. Gently slide the primary battery service module and permanently attached cables out of its slot. Support the weight of the module when the module is near being removed.
  12. Gently slide the three secondary battery service modules out of there slots. Support the weight of the module when the module is near being removed.

Install the BSM set

Procedure

  1. Install the three secondary battery service modules in the lower positions. See Figure 4 or Figure 5.
    WARNING:
    • The primary BSM and communication cable with protection plate, when connected, are a single unit and must not be disassembled.
    • The signal cable must be connected to the J30 connector on the primary BSM before you insert the BSM into the DC-UPS chassis.
    • To connect the cable (if needed), do not attempt to loosen or remove the protection plate.
    • Do not attempt to remove the signal cable from the primary BSM.
  2. Ensure that the signal cable is connected to the primary BSM module J30 connector. See Figure 7.
  3. If the power cable is not connected to the primary BSM module J20 connector, connect it now. See Figure 7.
  4. Insert the primary battery service module with permanently attached cables into the top position. See Figure 4 or Figure 5. Stop when the BSM is about 2.5 cm (1 inch) from fully seated.
    Important: Do not fully insert the primary BSM until after the power and signal cables have been connected to the secondary BSMs.
  5. Connect the power cable to the three secondary BSM module J21 connectors. See Figure 6.
  6. Connect the signal cable to the three secondary BSM module J31 connectors. See Figure 6.
  7. Insert the primary BSM until it is fully seated.
  8. Install the retaining screw Callout label 1 or Callout label 4 at the top of each battery service module that is being replaced. See Figure 4 or Figure 5.
  9. Install the BSM set enclosure cover (if removed).
  10. You must return the old BSM set in the packing materials and strapped on the pallet that the new BSM set arrived on.
    Note: If the packing materials are damaged, you must order a new packing materials kit (FRU P/N 45W9747) to ensure that the batteries are properly protected.
  11. You must strap the box to the pallet for return with the field strapping kit (FRU P/N 92X9720). The field strapping kit should be included in the packing materials; if not, order it separately.
  12. This FRU contains lead/acid gel batteries that must be properly disposed of. See return instructions in the FRU packaging or use your local procedures.
  13. Exit this service information center parts exchange procedure and return to the procedure that sent you here.