Hitachi 670 Series Application Manual page 8

Table of contents

4.7.2.1

4.8

Configuration of binary signals............................................................................................ 45

4.8.1

Operation principle............................................................................................................ 45

4.8.2

Configuration of binary inputs and outputs........................................................................46

4.8.2.1

4.8.2.2

4.8.3

Binary output signals.........................................................................................................51

4.8.4

Setting guidelines..............................................................................................................54

4.8.5

Settings............................................................................................................................. 58

Section 5

Communication set-up................................................................................63

5.1

Communication alternatives................................................................................................ 63

5.2

Communication channels.................................................................................................... 63

5.3

Fibre-optic communication interfaces with C37.94 protocol................................................65

5.4

Galvanic X.21 line data communication (X.21-LDCM)........................................................ 68

5.4.1

Introduction .......................................................................................................................68

5.4.2

Design............................................................................................................................... 68

5.4.3

Functionality...................................................................................................................... 70

5.4.4

Technical data................................................................................................................... 70

5.4.5

Communication via built-in X.21 galvanic interface...........................................................71

5.4.5.1

5.4.5.2

5.5

PDH telecommunication via C37.94 interface to transceiver 21-216.................................. 72

5.5.1

Communication requirements........................................................................................... 72

5.5.2

Communication structure via C37.94 interface to transceiver 21-216...............................73

5.5.3

Setting up transceiver 21-216...........................................................................................73

5.5.4

Power-up and LED statuses with transceiver 21-216.......................................................75

5.5.5

Service settings.................................................................................................................76

5.5.5.1

5.5.5.2

5.5.6

Earthing ............................................................................................................................77

5.5.7

Communication structure for laboratory testing.................................................................78

5.6

PDH/SDH telecommunication via C37.94 interface to transceiver 21-219 ........................ 79

5.6.1

Communication requirements........................................................................................... 79

5.6.2

master clock...................................................................................................................... 79

5.6.3

Communication structure with PDH/SDH port synchronized from transceiver 21-219..... 80

5.6.4

Setting up transceiver 21-219...........................................................................................81

5.6.5

Power-up and LED statuses with transceiver 21-219.......................................................83

5.6.6

Service settings.................................................................................................................84

5.6.6.1

5.6.6.2

5.6.7

Earthing ............................................................................................................................85

5.6.8

Communication structure for laboratory testing.................................................................86

5.7

Communication status and fault tracing.............................................................................. 86

5.7.1

Communication status on the line differential protection IED............................................86

5.7.2

Detecting communication faults on transceiver 21-216.....................................................89

2

Setting example with a two-end power line .................................................................41

Configuration of binary inputs and outputs via ACT.....................................................46

Configuration of binary inputs and outputs via SMT.................................................... 48

Service settings for the line differential protection IED with X.21 galvanic interface....71

PDH telecommunication via C37.94 interface to external transceiver C37.94-X.21.... 71

Service settings for the line differential protection IED.................................................76

Service settings for transceiver 21-216....................................................................... 77

Service settings for the line differential protection IED.................................................84

Service settings for transceiver 21-219....................................................................... 85

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1MRK505382-UEN Rev. K

Communication set-up, 670/650 series

Application Guide