5 Connecting............................................................................................... 67
5.1 Required tools........................................................................................................................................67
5.2 Connecting wires...................................................................................................................................67
5.2.1 Connecting wires to screw-compression type connectors.......................................... 68
5.2.2 Connecting wires to ring-lug type connectors............................................................... 68
5.2.3 Connecting wires to push-in type connectors................................................................69
5.3 Connecting protective earthing......................................................................................................... 70
5.3.1 Connecting protective earthing to relay.......................................................................... 70
5.3.2 Connecting protective earthing to local HMI.................................................................. 70
5.4 Connecting analog signals...................................................................................................................71
5.4.1 Connecting current and voltage inputs............................................................................ 72
5.4.2 Connecting RTD and mA inputs..........................................................................................81
5.5 Connecting binary signals...................................................................................................................85
5.6 Connecting power supply.................................................................................................................... 87
5.7 Connecting communication................................................................................................................88
5.7.1 Connecting protection communication........................................................................... 88
5.8 Connecting external display module.................................................................................................89
6 Checking installation.............................................................................. 91
6.1 Identifying hardware and software version..................................................................................... 91
6.2 Checking mounting...............................................................................................................................91
6.3 Energizing protection relay................................................................................................................. 91
7 Removing, repairing and exchanging....................................................93
7.1 Product life cycle................................................................................................................................... 93
7.2 Checking protection relay's information.......................................................................................... 93
7.3 Removing protection relay.................................................................................................................. 93
7.4 Sending protection relay for repair ...................................................................................................93
7.5 Exchanging protection relay .............................................................................................................. 94
8 Technical data..........................................................................................95
8.1 Local HMI.................................................................................................................................................95
8.2 Connector side.......................................................................................................................................95
8.3 Dimensions.............................................................................................................................................96
8.4 Enclosure class...................................................................................................................................... 98
9 Accessories and ordering data............................................................100
10 Glossary..................................................................................................104
Contents
REX640
Installation Manual
9
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