Xtreme Power Conversion Corporation
G90 User’s Manual
Page 51
Uninterruptible Power Supply
5.
Replace the EBP front cover.
To replace the cover, verify that the EBP cables are routed through the EBP cover knockouts, cover connects with
the cover hook near the left side of the EBP cabinet. Repeat for each additional EBP.
Put the front panel side with display to the panel port, put another side to the other two ports, then press it until
the panel and the chassis are combined tightly.
6. Verify that all wiring connecting the UPS and EBP(s) is installed behind the front covers and is inaccessible
to users.
7. Return to Step 1 to continue the EBP installation
Operation
Configuring Battery Settings
Set the UPS for the number of EBPs installed. To ensure maximum battery runtime, configure the UPS for the cor-
rect number of EBPs, refer to Specifications section for the appropriate setting of battery numbers and type. Use
the up and down buttons to select the number of battery strings according to your UPS configuration:
Battery Number Configuration
All UPS and EBP Cabinets
Number of Battery Strings
UPS only (internal batteries)
1 (default)
UPS + 1EBP
3
UPS + 2EBPs
5
UPS + 3EBPs
7
UPS + 4EBPs
9
Note:
The UPS contains one battery string; each EBP contains two battery strings.
Maintenance
Replacing Batteries
NOTE: DO NOT DISCONNECT the batteries while the UPS is in Battery mode. The EBP can be replaced when UPS is
ON, but be aware that if the utility fails at that time , the load of the UPS may NOT be protected. If you prefer to
remove input power to change the batteries.
WARNING!
Servicing should be performed by qualified personnel knowledgeable of batteries and required pre-
cautions. Keep unauthorized personnel away from batteries.
WARNING!
Batteries can present a risk of electrical shock or burn from high short circuit current. Observe the fol-
lowing precautions:
• Remove watches, rings, or other metal objects
• Use tools with insulated handles
• Do not lay tools or metal parts on top of batteries
• Wear rubber gloves and boots
WARNING!
When replacing batteries, replace with the same type and number of batteries or battery packs. Con-
tact your service representative to orders new batteries.
WARNING!
Proper disposal of batteries is required. Refer to your codes for disposal requirements.