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Table 2.1-7 Signal behaviors of PLC monitoring points 'OC1-OR' and 'OC1PU-OR'
PLC monitoring points
OC1-OR
OC1PU-OR
:
A pick-up signal is generated instantly when the element operates.
○
1
:
No signal due that the PU element is killed. Use 'OC1-OR' in place of this.
○
2
:
A pick-up signal is generated, but delayed with the IDMT characteristic.
○
3
:
A pick-up signal is generated instantly.
○
4
From OC1 to OC4 logics
OC1-OPT-TRIP
OC2-OPT-TRIP
OC3-OPT-TRIP
OC4-OPT-TRIP
OC1-OPT-ALARM
OC2-OPT- ALARM
OC3-OPT- ALARM
OC4-OPT- ALARM
OC1-ARC-BLOCK
OC2- ARC-BLOCK
OC3- ARC-BLOCK
OC4- ARC-BLOCK
OC1-OPT-AR
OC1-OPT-BR
OC1-OPT-CR
OC2-OPT-AR
OC2-OPT-BR
OC2-OPT-CR
OC3-OPT-AR
OC3-OPT-BR
OC3-OPT-CR
OC4-OPT-AR
OC4-OPT-BR
OC4-OPT-CR
OC1-OPT
OC2-OPT
OC3-OPT
OC4-OPT
Figure 2.1-9 Grouping logic for TRC/Recording functions
Setting [OC1_Timer]
DT
IEC-NT,VI,EI, UK-LTI, IEET-MI,VI,EI, US-CO2,CO8, ORIGINAL
○
1
○
2
- 31 -
6F2T0207 (0.01)
○
3
○
4
To TRC
≥1
OC-OPT-TRIP
≥1
OC-OPT-ALARM
≥1
OC-ARC-BLOCK
≥1
OC-OPT-AR
OC-OPT-BR
OC-OPT-CR
≥1
≥1
To Recording
OC1-OPT
OC2-OPT
OC3-OPT
OC4-OPT
GRE200 (5,6)
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