Chapter 9 Extended Battery Module Installation

NOTE A maximum of 22 battery strings can be installed in one configuration, including UPS batteries (4 EBM-64 models or 3 EBM-96 models). UPS-32 models contain 2 strings; UPS-64 models contain

4 strings; EBM-64 models contain 4 strings; and EBM-96 models contain 6 strings.

NOTE For non-seismic installations, the stabilizing bracket MUST be installed on all 3-high cabinets. The stabilizing bracket is optional for 2-high cabinets.

NOTE In a parallel system, each UPS should have the same number of EBMs to ensure equivalent runtimes.

If you are installing an optional EBM(s), use the following steps:

1.For cabinets using a stabilizing bracket: Position the EBM at least 8” (20.3 cm) away from the adjacent cabinet to allow space for the stabilizing bracket.

2.Verify that all battery circuit breakers are in the OFF position (see Figure 31).

3.Install the supplied ground strap (both ends attached to the EBM rear panel) between the UPS and the EBM:

Disconnect the end of the ground strap farthest from the adjacent cabinet and retain the screw. Remove the screw from the adjacent cabinet’s connecting plate. Attach the loose end of the ground strap to the adjacent cabinet.

4.If additional EBMs are installed, attach another ground strap between the first and second EBM. Repeat for each additional EBM.

5.Reinstall the remaining screw in the open hole where the ground strap was attached to the last EBM.

6.Plug the EBM cable into the UPS battery connector.

Powerware® 9155 UPS (8–15 kVA) User’s Guide S 164201553 Rev D www.powerware.com

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