ABB RED650 Applications Manual page 258

Section 12
Control
252
is given after evaluation of conditions from other functions such as interlocking,
synchrocheck, operator place selection and external or internal blockings.
The complete apparatus control function is not included in this
product, and the information below is included for understanding of
the principle for the use of QCBAY, LOCREM, LOCREMCTRL,
SCILO, SCSWI, SXCBR.
Figure 107 shows from which places the apparatus control function receives
commands. The commands to an apparatus can be initiated from the Control
Centre (CC), the station HMI or the local HMI on the IED front.
Station HMI
Local
HMI
IED
Apparatus
Control
I/O
breakers disconnectors earthing switches
IEC08000227 V1 EN-US
Figure 107: Overview of the apparatus control functions
Features in the apparatus control function:
• Operation of primary apparatuses
• Select-Execute principle to give high security
• Selection and supervision of operator place
• Command supervision
• Block/deblock of operation
• Block/deblock of updating of position indications
• Substitution of position indications
• Overriding of interlocking functions
• Overriding of synchrocheck
GW
Local
HMI
IED
Apparatus
Control
I/O
Line differential protection RED650 2.2 IEC
1MRK 505 393-UEN B
cc
Station bus
Local
HMI
IED
Apparatus
Control
I/O
IEC08000227.vsd
Application manual