Siemens SIRIUS 3RT Series System Manual page 7

2.4.5 Switching resistive loads............................................................................................................124
2.4.6 Changing the polarity of hoisting gear motors ...........................................................................125
2.4.7 Switching in the auxiliary circuit .................................................................................................126
2.4.8 Contactors with extended operating range ................................................................................127
2.4.8.1 Overview ....................................................................................................................................127
2.4.8.2 Contactors with UC drive ...........................................................................................................127
2.4.8.3 Contactors for railway applications ............................................................................................128
2.4.8.4 Coupling relays ..........................................................................................................................130
2.4.9 Operation of a motor in two directions of rotation (3RA23 reversing contactor assembly) .......132
2.4.10 Starting three-phase motors with reduced starting current peaks (3RA24 contactor
assembly for star-delta (wye-delta) start) ..................................................................................135
2.4.10.1 Technical background information.............................................................................................136
2.4.11 Using long control cables...........................................................................................................141
2.5 Mounting ....................................................................................................................................148
2.5.1 Mounting ....................................................................................................................................148
2.5.1.1 Mounting options........................................................................................................................148
2.5.1.2 Mounting position.......................................................................................................................148
2.5.1.3 Mounting on mounting plate.......................................................................................................149
2.5.1.4 Snapping onto DIN rail (snap-on mounting) ..............................................................................150
2.5.2 Replacing magnet coils..............................................................................................................150
2.6 Connection .................................................................................................................................153
2.7 Accessories................................................................................................................................155
2.7.1 Accessories overview ................................................................................................................155
2.7.2 Auxiliary switch blocks ...............................................................................................................161
2.7.2.1 Description .................................................................................................................................161
2.7.2.2 Configuration..............................................................................................................................164
2.7.2.3 Mounting/Disassembly...............................................................................................................167
2.7.3 Surge suppressor.......................................................................................................................170
2.7.3.1 Description .................................................................................................................................170
2.7.3.2 Configuration..............................................................................................................................171
2.7.3.3 Mounting ....................................................................................................................................178
EMC suppression module..........................................................................................................179
2.7.4
2.7.4.1 Description .................................................................................................................................179
2.7.4.2 Configuration..............................................................................................................................180
2.7.4.3 Mounting ....................................................................................................................................182
2.7.5 OFF-delay device.......................................................................................................................183
2.7.5.1 Description .................................................................................................................................183
2.7.5.2 Configuration..............................................................................................................................183
2.7.5.3 Mounting ....................................................................................................................................183
2.7.6 Mechanical latch ........................................................................................................................185
2.7.6.1 Description .................................................................................................................................185
2.7.6.2 Mounting/Disassembly...............................................................................................................185
2.7.6.3 Operation ...................................................................................................................................187
2.7.7 Additional load module...............................................................................................................188
2.7.7.1 Description .................................................................................................................................188
2.7.7.2 Mounting ....................................................................................................................................188
2.7.8 Control kit for manual operation of contactor contacts ..............................................................189
2.7.8.1 Description .................................................................................................................................189
2.7.8.2 Mounting ....................................................................................................................................189
2.7.9 Coupling link for PLC .................................................................................................................190
2.7.9.1 Description .................................................................................................................................190
2.7.9.2 Mounting ....................................................................................................................................191
2.7.10 LED display indicator module ....................................................................................................192
2.7.10.1 Description .................................................................................................................................192
SIRIUS Innovations
System Manual, 01/2011, A8E56203870002-03
Table of contents
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