- Eaton UPS User's Guide

UPS STARTUP

Eaton 9170

UPS (3–18 kVA) User's Guide S 164201393 Rev E www.eaton.com/powerquality

Startup for Hardwired Units

To start a hardwired unit:

1. Confirm that an electrician has completed and tested the

connection to the proper power source.

2. If external battery cabinets are installed, check the cable

connections between the UPS and 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 (shown in Figure 51)

using the supplied communication cable.

DB-9 Connector for

Computer Cable

Figure 51. 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 six screws in the bypass switch front cover and

remove the cover to gain access to the terminal block for voltage

measurements.