Programmable Logic
P74x/EN PL/Na7
MiCOM P741, P742, P743
(PL) 7-
51
PL
LED
Number
LED Input Connection/Text
Latched
P74x LED Function Indication
8
LED8 Red
LED8 Yellow
LED8 Green
No
Fiber communication Error
Fiber communication to change
Fiber communication healthy
9
FnKey LED1 Red
FnKey LED1 Yellow
FnKey LED1 Green
No
Zone or CZ circuitry fault block.
Zone or CZ circuitry fault alarm
No Zone or CZ circuitry fault
10
FnKey LED2 Red
FnKey LED2 Yellow
FnKey LED2 Green
No
Zone or CZ PU error fault block.
Zone or CZ PU error fault alarm
No Zone or CZ PU error fault
11
FnKey LED3 Red
FnKey LED3 Yellow
FnKey LED3 Green
No
All protections Disabled
Not used
All protections Not Disabled
12
FnKey LED4 Red
FnKey LED4 Yellow
FnKey LED4 Green
No
Zone 1: 87BB & 50BF blocked
Zone 1: 50BF blocked
Zone 1: protected
13
FnKey LED5 Red
FnKey LED5 Yellow
FnKey LED5 Green
No
Zone 2: 87BB & 50BF blocked
Zone 2: 50BF blocked
Zone 2: protected
14
FnKey LED6 Red
FnKey LED6 Yellow
FnKey LED6 Green
No
Not used
Not used
Reset CU Indications
15
FnKey LED7 Red
FnKey LED7 Yellow
FnKey LED7 Green
No
Not used
Not used
Reset CU & PU Indications
16
FnKey LED8 Red
FnKey LED8 Yellow
FnKey LED8 Green
No
Not used
Not used
Reset PU Trip Latch
17
FnKey LED9 Red
FnKey LED9 Yellow
FnKey LED9 Green
No
Not used
Not used
Manual DR trigger
18
FnKey LED10 Red
FnKey LED10 Yellow
FnKey LED10 Green
No
Not used
Dead Zone fault
Not used
Summary of Contents for P741
Page 2: ......
Page 4: ......
Page 6: ...P74x EN IT Na7 Introduction MiCOM P741 P742 P743 ...
Page 8: ...P74x EN IT Na7 Introduction IT 1 2 MiCOM P741 P742 P743 IT ...
Page 18: ...P74x EN TD Na7 Technical Data MiCOM P741 P742 P743 ...
Page 30: ...P74x EN TD Na7 Technical Data TD 2 14 MiCOM P741 P742 P743 TD ...
Page 32: ...P74x EN GS Na7 Getting Started MiCOM P741 P742 P743 ...
Page 70: ...P74x EN ST Na7 Getting Started MiCOM P741 P742 P743 ...
Page 72: ...P74x EN ST Na7 Settings ST 4 2 MiCOM P741 P742 P743 ST ...
Page 116: ...P74x EN OP Na7 Operation MiCOM P741 P742 P743 ...
Page 120: ...P74x EN OP Na7 Operation OP 5 4 MiCOM P741 P742 P743 OP ...
Page 136: ...P74x EN OP Na7 Operation OP 5 20 MiCOM P741 P742 P743 OP FIGURE 8 CB FAIL LOGIC ...
Page 166: ...P74x EN AP Na7 Application Notes MiCOM P741 P742 P743 ...
Page 234: ...P74x EN PL Na7 Programmable Logic MiCOM P741 P742 P743 ...
Page 290: ...P74x EN PL Na7 Programmable Logic PL 7 56 MiCOM P741 P742 P743 PL ...
Page 291: ...Programmable Logic P74x EN PL Na7 MiCOM P741 P742 P743 PL 7 57 PL ...
Page 292: ...P74x EN PL Na7 Programmable Logic PL 7 58 MiCOM P741 P742 P743 PL ...
Page 294: ...P74x EN PL Na7 Programmable Logic PL 7 60 MiCOM P741 P742 P743 PL ...
Page 295: ...Programmable Logic P74x EN PL Na7 MiCOM P741 P742 P743 PL 7 61 PL ...
Page 296: ...P74x EN PL Na7 Programmable Logic PL 7 62 MiCOM P741 P742 P743 PL ...
Page 298: ...P74x EN PL Na7 Programmable Logic PL 7 64 MiCOM P741 P742 P743 PL ...
Page 299: ...Programmable Logic P74x EN PL Na7 MiCOM P741 P742 P743 PL 7 65 PL ...
Page 300: ...P74x EN PL Na7 Programmable Logic PL 7 66 MiCOM P741 P742 P743 PL ...
Page 302: ...P74x EN MR Na7 Measurements and Recording MiCOM P741 P742 P743 ...
Page 324: ...P74x EN FD Na7 Firmware Design MiCOM P741 P742 P743 ...
Page 344: ...P74x EN FD Na7 Firmware Design FD 9 20 MiCOM P741 P742 P743 FD FIGURE 10 P74x SYSTEM OVERVIEW ...
Page 351: ...Firmware Design P74x EN FD Na7 MiCOM P741 P742 P743 FD 9 27 FD ...
Page 353: ...P74x EN CM Na7 Commissioning MiCOM P741 P742 P743 ...
Page 429: ...P74x EN MT Na7 Maintenance MiCOM P741 P742 P743 ...
Page 431: ...P74x EN MT Ma7 Maintenance MT 11 2 MiCOM P741 P742 P743 MT ...
Page 451: ...P74x EN TS Na7 Troubleshooting MiCOM P741 P742 P743 ...
Page 453: ...P74x EN TS Na7 Troubleshooting TS 12 2 MiCOM P741 P742 P743 TS ...
Page 475: ...P74x EN SC Na7 SCADA Communications MiCOM P741 P742 P743 ...
Page 499: ...P74x EN SC Na7 SCADA Communications SC 13 24 MiCOM P741 P742 P743 SC ...
Page 501: ...P74x EN SG Na7 Symbols and Glossary MiCOM P741 P742 P743 ...
Page 511: ...P74x EN SG Na7 Symbols and Glossary SG 14 10 MiCOM P741 P742 P743 SG Logic Gates ...
Page 513: ...P74x EN IN Na7 Installation MiCOM P741 P742 P743 ...
Page 515: ...P74x EN IN Na7 Installation IN 15 2 MiCOM P741 P742 P743 IN ...
Page 528: ...Installation P74x EN IN Na7 MiCOM P741 P742 P743 IN 15 15 IN FIGURE 6 P742 40TE REAR VIEW ...
Page 533: ...P74x EN VH Na7 Firmware and Service Manual Version History MiCOM P741 P742 P743 ...
Page 542: ...APPENDIX A WIRING DIAGRAMS ...
Page 543: ...Appendix A Wiring Diagrams P74x P74x EN M Na7 ...
Page 559: ......