- 926 -
*3
Note: If the event “device-travelling is detected, it indicates that another operator
is changing the states of a device. Thus, the IED should inhibit the operation of
any device for the duration that the event is detected. The detecting signal is
denoted as “Traveling OR” in Table 4.9-6.
*4
Note: If the issue of a trip command is executed by the IED, any control operation
is blocked until the trip operation is completed. If an IED operates a relay
application, the trip command is issued at the output-point “GEN.TRIP” in Table
4.9-6.
*5
Note: Criteria “unmatched conditions” are decided when “Test-bit status” in a
command is not identical to “IED test status”.
*6
Note: The “Event suppression” function can detect chattering on BI circuits. (See
4.9.6(i)-3)
*7
Note: A supervision of the Binary IO module can detect connection errors for BI
circuits
.
*8
Note: The Common control (CMNCTRL) function can test or check the P1–P3
control operations performed by the logic. When the user sets Off for scheme
switch [SCDEN], the operation of the logic is blocked if the logic is running in the
same operation-direction compared with the previous operation-direction. On the
other hand, if On is set for the scheme switch, the logic is not blocked.
*9
Note: The user should set scheme switch [TPOS01-DEVTYPE] to EDS when the
earth-switch(ES) is applied for the TPOS01 function.
*10
Note: The user will need to program the PLC logic “Control hierarchy condition”
The user is also required to connect the logic condition with the select condition
logic using the connection point “TPOS01IN_TMP_21”. For more information, see
chapter
Control and monitoring application: Control hierarchy
”. See PLC#3 of
Table 4.9-8.
*11
Note: To identify the input points of the other TPOS, see Table 4.9-8 for PLC#1 to
#3.
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