Troubleshooting

Question: •How do I... "

Answer

 

 

 

 

Check the condition of the batteries?

The results of the most recent battery test are stored at menu 6-2. To run a test

 

of battery condition, go to menu 10-1 and press the

 

button. When the test is

 

 

 

 

 

complete, the results are again stored in menu 6 parameters.

Change the battery low-voltage alarm threshold? (or any other alarm or operating limit?)

This is one of the parameters that require a trained person, knowing the correct password, to perform. Without the proper password, you are only able to view operating limits, not change them. Only authorized personnel should change these limits. For information about making this or other password-protected adjustments, contact your service representative.

Apply power to the load if the unit won't operate?

Turn the optional external bypass switch to either the SERVICE or the LINE position. In these two positions, utility power flows directly to the load. In the SERVICE position, the UPS does not receive utility power and may be worked on for maintenance purposes.

Turn the external bypass switch?

If the bypass switch is a Make-Before-Break type, you must press the interlocking red button next to the switch before turning the switch.

Set the UPS to turn on in High

Go to menu 2. Select the system mode desired at power-on by pressing the￿

Efficiency mode?

or ￿ button. When the display shows Auto High Efficiency, press the

 

button.

 

 

 

 

 

Set the UPS to operate in High

The Powerware 9170 system will not change operating modes as a timed event.

Efficiency mode on weekends?

But, if you wish to conserve energy, before leaving for the weekend, go to

 

menu 2. Select High Efficiency and press the

 

button. After the weekend,

 

 

 

 

 

return to the Automatic mode by going to menu 2 again, and selecting Auto

 

followed by pressing the

 

button.

 

 

 

 

Change the level of system redundancy?

To view or change the redundancy level, go to menu 7-3-5.

Change the batteries?

Each side-by-side pair of battery modules forms one series string on the battery

 

bus. See •Battery Replacement" on page 74 for the battery replacement

 

procedure.

Add/delete one or more strings of batteries?

Physically install or remove battery modules as described on page 50. Record capacity of external battery strings (in all external battery cabinets) by going to menu 7-2-10.

Add/delete one or more power modules?

Physically install or remove power modules as described on page 50. The system operating software senses the number and location of all power modules in the cabinet. If you want to change the number of redundant power modules, go to menu 7-3-5 and change the level of system redundancy.

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