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page 4 —9
User Manual
4.10 Multi-Module Test and Maintenance Mode on UPS
When Q3BP is closed and Q5N is open, the system is in Test and Maintenance Mode. The customer’s load is being
supplied by Utility 2. In this condition, UPS’s can be turned on and off without affecting the customer’s load. When
a UPS is online in this mode, it will show as blue instead of its normal green, as shown in Figure 4-8.
Figure 4-8: M-M Test and Maintenance Mode on UPS.
UPS 1
UPS
Online
Q4S
Q2S
Q5N
Q3BP
Utility 2
Utility 1
System
Load
UPS 2
UPS
Online
UPS 3
UPS
Online
System
Test / Maint
Mode
ALARMS
Setup
Trend
10:15:55
UPS 1
UPS 2
UPS 3