ABB OMD100 - Description; OMD100 Switching Sequence; Line 1 Priority

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AUTOMATIC CONTROL UNIT, OMD100
AUTOMATIC CONTROL UNIT, OMD100
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3. Description
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3.1 OMD100 switching sequence
3.1.1 Line 1 priority
The switching sequence can be summarized in following steps:
An anomaly occurs on the Line 1
Switching delay
Change-over switch (Switch I) to the position O
Change-over switch (Switch II) to the position II
And the back switching sequence can be summarized in the following steps:
The Line 1 will start the normal functioning
Back switching delay
Change-over switch (Switch II) to the position O
Change-over switch (Switch I) to the position I
Figure 3.1 Automatic Switching Sequence, Line 1 priority
Ts: Switching delay, Tbs:Back switching delay
LINE 1
LINE 2
Switch I status
A07242
Switch II status
Ts
Tbs