Setting Guidelines - ABB RELION 670 Series Application Manual

1MRK 505 382-UEN B
4.8.4
Communication set-up 670/650 series 2.2
Application Guide
Analog and binary signal transfer for line differential protection
Name
ADINV9
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CH8
CH9

Setting guidelines

64 kbit and 2 Mbit 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 OutOfService or at the remote
end by setting the corresponding LDCM to channel mode Blocked. If OutOfService
is selected, the IED should have active 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 TerminalNo to 1 and RemoteTermNo to 2
• LDCM for slot 306: set TerminalNo to 3 and RemoteTermNo to 4
In multiterminal current differential applications,with 4 LDCMs in each IED, up to
20 unique addresses must be set.
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.
Type Description
BOOLEAN Analog data invalid in remote end
STRING Remote communication channel 1, 2M
STRING Remote communication channel 2, 2M
STRING Remote communication channel 3, 2M
STRING Remote communication channel 4, 2M
STRING Remote communication channel 5, 2M
STRING Remote communication channel 6, 2M
STRING Remote communication channel 7, 2M
STRING Remote communication channel 8, 2M
STRING Remote communication channel 9, 2M
IED does not use data from the LDCM
IED informs the remote end that it is out of service
Section 4
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