UPS WITH BYPASS ELECTRICAL INSTALLATION
After turning the load position handle to the UPS position and releasing the red button, the Eaton 9170+ UPS remains in Bypass mode. For proper operation, return the UPS to Auto mode using the following procedure.
NOTE If the UPS remains in Manual Bypass mode and incoming AC power is lost, the load is automatically dropped. The UPS must be in Auto mode to provide battery backup power.
NOTE If you have any questions or problems with the bypass operation, call the Help Desk at one of the telephone numbers on page NO TAG and ask for a UPS technical representative.
1.Press the menu button on the front panel display (see Figure 54 on page 80). The System Status Menu displays.
2.Press the B button until the System Control menu displays.
3.Press the 
button. Mode Preference displays.
4.Press the 
button to access Mode Preference. The Enter Password screen automatically opens.
5.Enter the appropriate password (0377 is the default), then press the 
button.
6.Press the 
button again and press the B button until you see Auto.
7.Press the 
button and listen for a click.
8.Press ESC twice to return to the System Status Menu. The UPS is now in Auto mode.
To disconnect AC input power during maintenance or service, turn the bypass switch to the SERVICE position.
Table 4 shows the bypass switch models available for the Eaton 9170+
UPS.
24 | Eaton 9170+ UPS |
