Powerware 9170+ - Manual (Page 21)

17 Powerware ® 9170 User's Guide S LTM-1344 B Uncontrolled Copy
C H A P T E R 3
B
ATTERY
C
ABINET
I
NSTALLATION
If you are not installing battery modules into a separate external battery
cabinet, continue to UPS Startup" on page 49 for plug-receptacle units
or to Electrical Installation" on page 23 for hardwired units.
W A R N I N G
Only qualified service personnel (such as a licensed electrician) should perform the
battery cabinet installation. Risk of electrical shock.
C A U T I O N
S Before connecting an external battery cabinet to the UPS cabinet or to another
external battery cabinet, verify that all AC input power is removed from the UPS.
Open the input service circuit breaker or turn the external bypass switch to the
SERVICE position.
S Disconnect all battery strings in the UPS cabinet and/or battery cabinet to ensure
DC voltage is removed from the internal DC buses. You can remove all battery
modules or unplug each pair of battery modules from the cabinet backplane.
1. Open the carton containing the external battery cabinet cable
assembly, and check that all required parts have been shipped
with it.
2. Locate the 3-slot section in the UPS cabinet that contains the
power entrance panel. Unscrew and remove the rear panel of
this section (see Figure 13).