Toshiba GR200 Series Instruction Manual page 1327

Error detection of differential current in DIF (Id)
10.5.1
Operations are monitored by the operation of DIFL-SV element† in the current differential
function (DIF). The automatic supervision function can alarm its erroneous operation by the
notification from the DIF function.
†Note: The DIF function has a supervision feature; and, the user can set it using settings
[DIFL-IdSV] and [TDIFL-IdSV]; then set On for the scheme switch [DIFL-IdSV-EN].
For more information about the DIF supervision, see Chapter
Current differential protection for the line: Differential current monitor
Error level
(i)
The default error level is set at 3 (Minor error), but the user can change it using setting
[CHK_ID:LVl]; then, set On for the setting [CHK_ID:Sw]. The manufacture sets 10 seconds for
the detection using the [TDIFL-IdSV]. It is reset instantly when the error 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 10.5-3 Error messages provided by the supervisor in CHK_ID
Message and level
Id error
Error level
Table 10.5-4 Detailed information in Hexadecimal in CHK_ID
Display area
N/A
Meaning of the information
Detection of the erroneous differential current
Minor error (Level 3)
Meaning of the detailed information
(No information is displayed)
- 1304 -
6F2S1914 (0.49)
Relay application:
.
GRL200 (Soft 033 & 037)