Toshiba GR200 Series Instruction Manual page 1336

Line differential protection ied
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10.5.10 Transmission error (Com fail-R)
An error occurred at the remote can be detected when the user sets On for the setting
[CHK_CMRFAIL1:Sw]. The error signal is issued when the remote IED cannot sense the signal
coming from the opposite IED for ten seconds.
Error level
(i)
Generally, the default error level is set at level 2 (Serious error (Comm)), as default, but the
user can program the level using settings [CHK_CMRFAIL1:Lvl] and [CHK_CMRFAIL2:Lvl];
then, set On for the settings [CHK_CMRFAIL1:Sw] and [CHK_CMRFAIL2:Sw]. The
manufacture sets ten (10) seconds to detect the failure; it is reset with in a second when the
failure is cleared.
Error message
(ii)
When the function operates and detects error, an error message can be shown at the LED and
the LCD screen.
Table 10.5-21 Error messages provided by the supervisor in CHK_CMRFAIL
Message and level
ComX fail-R
Error level
Table 10.5-22 Detailed information in Hexadecimal in CHK_CMRFAIL
Display area
N/A
Meaning of the information
Detection for communication failure at remote terminal
Serious error (Level 2)
Meaning of the detailed information
(No information is displayed)
- 1313 -
6F2S1914 (0.49)
GRL200 (Soft 033 & 037)

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