Troubleshooting
104
Powerware
®
9170
+
UPS User’s Guide S Rev B www.powerware.com
AnswerQuestion: “How do I ... ”
Check the battery
voltage?
Go to menu 1-3-1. To view other system status parameters, see the Menu map
on page 85.
Check the condition of
the batteries?
The results of the most recent battery test are stored at menu 3-1-2-1. To run a
test of battery condition, go to menu 3-1-1 and press the button. When the
test is complete, the results are again stored in the Battery Results parameter.
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 red
button beside the switch before turning the switch.
Set the UPS to turn on in
High Efficiency mode?
Go to menu 4-1. Select the system mode desired at power-on by pressing the
or button. When the display shows Auto High Efficiency, press the
button.
YB
Set the UPS to operate in
High Efficiency mode on
weekends?
The Powerware 9170
+
system will not change operating modes as a timed
event. But, if you wish to conserve energy, before leaving for the weekend, go
to menu 4-1. Select High Efficiency and press the button. After the
weekend, return to the Automatic mode by going to menu 4-1 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 4-2-5.
Change the batteries? Each side-by-side pair of battery modules forms one series string on the battery
bus. See “Battery Replacement” on page 93 for the battery replacement
procedure.
Add/delete one or more
strings of batteries?
Physically install or remove battery modulesasdescribedonpage64.Record
capacity of external battery strings (in all external battery cabinets) by going to
menu 4-2-6.
Add/delete one or more
power modules?
Physically install or remove power modulesasdescribedonpage64.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 4- 2-5 and change the level of system redundancy.
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