UPS STARTUP
8.If external battery cabinets are installed, close the DC disconnect switch button on the back of each external battery cabinet. Insert the switch key supplied with the cabinet into the button and turn clockwise
9.The UPS front panel display automatically turns on whenever input power is present and at least one power module is installed. Set up the initial operating parameters through the front panel display (see “Initial Startup Parameters” on page 74).
NOTE The unit has no physical On/Off switch. Access the UPS On/Off function through the front panel display.
NOTE If the UPS has been manually set to operate in Bypass or Battery mode, change the System Control Mode Preference (menu 4 1) selection to Auto to return to normal Auto mode operation.
10.Use an AC voltmeter to measure voltages on the terminal block inside the bypass switch cabinet. See Figure 16 on page 29, which shows the terminal numbering for input and output UPS connections.
Record your measurements in the following chart. The voltages in the first column should be nearly equal to the voltages in the second column. If the values differ by more than a few volts, check the terminal block connections and correct any wiring problems.
AC Line Input | Measurement | AC from UPS | Measurement | |
Output | ||||
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| ||
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|
|
| |
L1 to L2 (11 to 12*) |
| 7 to 8* |
| |
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|
|
| |
N to L1 (10 to 11*) |
| 6 to 7* |
| |
|
|
|
| |
N to L2 (10 to 12*) |
| 6 to 8* |
| |
|
|
|
|
* For some installations, there is no connection at terminals 6, 8, 10, or 12.
72 | Eaton 9170+ UPS |
