Powerware 9170+ - Manual (Page 57)

UPS Startup
53 Powerware ® 9170 User's Guide S LTM-1344 B Uncontrolled Copy
Startup for Hardwired Units
To start a hardwired unit, use the following steps:
1. Confirm that an electrician has completed and tested the
connection to the proper power source.
2. Check the cable connections between the UPS and any external
battery cabinets.
3. Ensure that all power modules are properly installed and
latched into the UPS cabinet.
4. If you are installing power management software, connect your
computer to the UPS communication port using the supplied
communication cable.
DB-9 Connector for
Computer Cable
Figure 43. Communication Port
5. If your unit is wired to an external bypass switch, you must
perform a voltage and phase check (Steps 6 through 16).
Otherwise, skip to Step 17.
C A U T I O N
Before operating the bypass switch, use the following procedure to check the wiring
for correct installation. To prevent damage to the load, turn off the main circuit breaker
in the load service panel or verify that the load cannot receive power from the UPS.
6. At the bypass switch, press the red button and turn the switch
to UPS.
7. Remove the cover panel on the bypass switch to gain access to
the terminal block for voltage measurements.
8. If external battery cabinets are installed, close the DC
disconnect switch on the back of each external battery cabinet.
Insert the switch key supplied with the cabinet into the center
of the switch button and turn clockwise 1/2-turn. Pull the
button out to close the switch. Turn the key back counter-
clockwise, and remove the key.