Hitachi 670 Series Application Manual page 66

Section 4
Analog and binary signal transfer for line differential protection
Name
CompRange
MaxtDiffLevel
DeadbandtDiff
Table 17: LDCMRecBinS2_2M Non group settings (basic)
Name
ChannelMode
TerminalNo
RemoteTermNo
DiffSync
GPSSyncErr
CommSync
OptoPower
ComAlarmDel
ComAlrmResDel
RedChSwTime
RedChRturnTime
AsymDelay
MaxTransmDelay
MaxtDiffLevel
DeadbandtDiff
LinkForwarded
60
Values (Range) Unit
0-10kA -
0-25kA
0-50kA
0-150kA
200 - 2000 us
200 - 1000 us
Values (Range) Unit
Blocked -
Normal
OutOfService
0 - 255 -
0 - 255 -
Echo -
GPS
Block -
Echo
Slave -
Master
LowPower -
HighPower
5 - 10000 ms
5 - 10000 ms
0 - 500 ms
5 - 500 ms
-20.00 - 20.00 ms
0 - 40 ms
200 - 2000 us
200 - 1000 us
Off -
LDCM305
LDCM306
LDCM312
LDCM313
LDCM322
LDCM323
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Step Default
- 0-25kA
1 600
1 300
Step Default
- Normal
1 0
1 0
- Echo
- Block
- Slave
- LowPower
5 100
5 100
5 0
5 100
0.01 0.00
1 20
1 600
1 300
- Off
1MRK505382-UEN Rev. K
Description
Compression range
Maximum time diff for ECHO back-up
Deadband for t Diff
Description
Channel mode of LDCM
Terminal number used for line differential
communication
Terminal number on remote terminal
Diff Synchronization mode of LDCM
Operation mode when GPS
synchroniation signal is lost
Com Synchronization mode of LDCM
Transmission power for LDCM
Time delay before communication alarm
signal is activated
Reset delay before communication alarm
signal is reset
Time delay before switching in redundant
channel
Time delay before switching back from
redundant channel
Asymmetric delay when communication
use echo synch.
Max allowed transmission delay
Maximum time diff for ECHO back-up
Deadband for t Diff
Link forwarded from other LDCM
Communication set-up, 670/650 series
Application Guide
PID-6474-SETTINGS v2