Figure 12 transfer both load feeders to one ups, See 4.2.5 - transfer of load between two systems, Operating instructions 34 – Liebert Series 610 User Manual
Page 38: From: normal operation tie open, Legend: m, Module ss, Static bypass switch, Tie closed
Operating Instructions
34
Figure 12 Transfer both load feeders to one UPS
Figure 13 Both feeders on one system to normal operation
Figure 14 Transfer 100% load on one system to 100% load on a second system (a two-step operation)
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 4.2.4 - Isolating a UPS System for Maintenance -
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
Momentary Tie
for transfer of
Load 2 to
System 1
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 4.2.6 - Returning an Isolated System to Normal
Operation - End Combined Loads Operation.
FROM:
Combined Loads Operation
TO:
Normal Operation
Tie Open
LEGEND: M
x
= Module
SS
x
= Static Bypass Switch
See 4.2.5 - Transfer of Load Between Two Systems.
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 on System 2
Momentary Tie for transfer
of Load 2 to System 2,
then Momentary Tie for
transfer of Load 1 to
System 2
M
1
M
1
SS
1
SS
2
M
2
M
2
System 1
System 2
Load 1 Load 2
Tie
Tie Closed
FROM:
Combined Loads Operation on System 1