UPS Startup

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.

Powerware® 9170 User's Guide ￿ LTM-1344 B Uncontrolled Copy

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