ABB REC 561, User Manual

Page: 388 / 643

Interlocking
ABB Network Partner AB
1MRK 580 151-XEN
Page 6 - 103
Version 1.0-00
The interlocking module is connected to the surrounding functions within
a bay as shown in Fig. 1.
Fig. 1 Interlocking module on bay level
The communication between different bays is performed via the station
bus and can consist of signals of these types:
• Unearthed busbars
• The busbars are connected together
• Other bays connected to a busbar
• Received data from other bays are valid
Fig. 2 shows the principle of data exchange.
Fig. 2 Data exchange between interlocking modules
The interlocking function in a bay that uses invalid data as conditions
does not give a release for command. Invalid data of positions of HV
apparatuses can be obtained, for example, at intermediate positions, loss
of a control terminal, or at input board error.
Control module
Control module
Control module
Interlocking
module
Interlocking
modules in
other bays
(X80151-1)
Disc Q
A
and Q
B
closed
A not earthed
B not earthed
A and B interconnected
A unearthed
B unearthed
A and B interconnected
A and B interconn in other bay
Q
A
Q
B
Q
0
Q
L
Q
A
Q
B
Q
0
Q
A
Q
B
Q
0
Q
L
Q
AE
Q
BE
Bay 1
Bay n Bus coupler
Station bus
A
B
Disc Q
A
and Q
B
closed
A not earthed
B not earthed
A and B interconnected
(X80151-2)