Setting Guidelines - ABB Relion 670 Series Application Manual

Section 4
Analog and binary signal transfer for line differential protection
Name
ADINV8
ADINV9
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
CH9
4.8.4

Setting guidelines

64 kbit mode common settings
ChannelMode defines how an IED discards the LDCM information when one of the IEDs in the
system is out of service: it can either be done on the IED out of service by setting all local
LDCMs to channel mode
LDCM to channel mode
communication to the remote end during the whole maintenance process, that is, no restart or
removal of the fiber can be done.
This setting does not apply to two-end communication.
Blocked
OutOfService
TerminalNo is used to assign a unique address to each LDCM in all current differential IEDs. Up
to 256 LDCMs can be assigned a unique number. For example, in a local IED with two LDCMs:
• LDCM for slot 305: set
• LDCM for slot 306: set
In multiterminal current differential applications,with 4 LDCMs in each IED, up to 20 unique
addresses must be set.
RemoteTermNo is used to assign a number to each related LDCM in the remote IED. For each
RemoteTermNo is set to a different value than TerminalNo , but equal to the TerminalNo
LDCM,
of the remote end LDCM. In the remote IED,
follows:
52
Type
BOOLEAN
BOOLEAN
STRING
STRING
STRING
STRING
STRING
STRING
STRING
STRING
STRING
OutOfService or at the remote end by setting the corresponding
Blocked . If OutOfService is selected, the IED should have active
IED does not use data from the LDCM
IED informs the remote end that it is out of service
TerminalNo to 1 and RemoteTermNo to 2
TerminalNo to 3 and RemoteTermNo to 4
A unique address is necessary to give high security against incorrect
addressing in the communication system. If the same number is used for
TerminalNo in some of the LDCMs, a loop-back test in the communication
system can give an incorrect trip.
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Description
Analog data invalid in remote end
Analog data invalid in remote end
Remote communication channel 1, 2M
Remote communication channel 2, 2M
Remote communication channel 3, 2M
Remote communication channel 4, 2M
Remote communication channel 5, 2M
Remote communication channel 6, 2M
Remote communication channel 7, 2M
Remote communication channel 8, 2M
Remote communication channel 9, 2M
TerminalNo and RemoteTermNo are reversed as
Communication set-up, 670/650 series
1MRK 505 382-UEN E
M12454-3 v8
Application Guide