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Operating Instructions
35
Figure 15 Normal split load operations to Continuous Tie
Figure 16 Continuous Tie to normal split load operation
Figure 17 Continuous Tie to load on one system
M
1
M
1
SS
1
SS
2
M
2
M
2
System 1 System 2
Load 1 Load 2
Tie
FROM:
Normal Operation
Tie Open
See 4.2.11 - Tying the UPS Systems - Continuous
Parallel Operations.
LEGEND: M
x
= Module
SS
x
= Static Bypass Switch
M
1
M
1
SS
1
SS
2
M
2
M
2
System 1 System 2
Load 1 Load 2
Tie
Tie Closed
TO:
Continuous Tied Systems
Continuous Tie
operation for
module out of
service
M
1
M
1
SS
1
SS
2
M
2
M
2
System 1 System 2
Load 1 Load 2
Tie
M
1
M
1
SS
1
SS
2
M
2
M
2
System 1 System 2
Load 1 Load 2
Tie
Tie Closed
See 4.2.11 - Returning Parallel Systems to Normal
Operation - End Continuous Tie.
FROM:
Continuous Tied Systems
TO:
Normal Operation
Tie Open
LEGEND: M
x
= Module
SS
x
= Static Bypass Switch
Module
returned
to service
See 4.2.4 - Isolating a UPS System for Maintenance -
Combined Loads Operation.
LEGEND: M
x
= Module
SS
x
= Static Bypass Switch
M
1
M
1
SS
1
SS
2
M
2
M
2
System 1 System 2
Load 1 Load 2
Tie
Tie Closed
TO:
Combined Loads Operation
M
1
M
1
SS
1
SS
2
M
2
M
2
System 1 System 2
Load 1 Load 2
Tie
Tie Closed
FROM:
Continuous Tied Systems
Module
returned
to service