Figure 17 continuous tie to load on one system, Operating instructions 35, From: normal operation tie open – Liebert Series 610 User Manual
Page 39: Legend: m, Module ss, Static bypass switch, Tie closed, Static bypass switch module returned to service, Tie closed to: combined loads operation
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
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 -
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