IBM 11000 VA LCD 5U, Installation And Maintenance Manual

Page: 48 / 92

Table 8. Configuration settings (continued)
Description Available settings Default setting
Qualify bypass [Always] [Never] [Bypass Disabled]
If
Always is selected, the Bypass operation is allowed when:
v
Bypass voltages > the value set for Bypass Voltage Low Limit
v Bypass voltages < the value set for Bypass Voltage High Limit
v
Bypass frequency > (nominal frequency -3 Hz)
v Bypass frequency < (nominal fre3 Hz)
v
Inverter is synchronized with Bypass when unsynchronized
transfers are disabled by the value set for Unsynchronized
Transfers
If Never is selected, the Bypass operation is always allowed, if
the utility is within the UPS operating limits; voltage and
frequency limits are not in use. If
Bypass Disabled is selected,
the Bypass operation is prohibited.
Always
Extended battery
modules (EBMs) [0] [1]
See “Configuring the UPS for an extended battery module” on
page 40.
0
Battery low alarm [Immediate] [2 min] [3 min] [5 min]
If you select a value, the battery low alarm is triggered when the
set amount of backup time (approximately) remains in the
batteries.
3 minutes
Automatic battery tests [Enabled] [Disabled]
See “Running automatic battery tests” on page 41.
Enabled
Clear alarm history The number after “Total events” shows how many events are
currently stored in the log. Press the OK button for 1 second to
reset the event count to zero and clear the log. Not applicable
LCD contrast [-5], [-4], [-3], [-2], [-1], [+0], [+1], [+2], [+3], [+4], [+5]
The display contrast is adjustable from -5 to +5. This range
covers the maximum adjustment for contrasting the background
with the text in the visual display of the control panel.
[+0]
REPO input polarity [Open] [Closed]
If Open is selected, the normally open contacts activate the
alarm when the contacts close. If Closed is selected, the
normally closed contacts activate the alarm when the contacts
open.
Open
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11000 VA UPS and 11000 VA EBM: Installation and Maintenance Guide