Siemens 1LA8 - Page 7

6.3.1 Checking winding connections...............................................................................................71
6.3.2 Terminal designation..............................................................................................................72
6.3.3 Selecting cables.....................................................................................................................72
6.3.4 Connecting the grounding conductor.....................................................................................72
6.3.5 Connect metal shield in the terminal box ..............................................................................73
6.3.6 Radio-frequency grounding for converter operation...............................................................73
6.3.7 Connection without terminal box............................................................................................74
6.3.8 Connecting the machine for a specific direction of rotation....................................................75
6.4 Introducing and routing the cables.........................................................................................75
6.4.1 Inserting the cable into the 1XB16... terminal box with cable gland ......................................75
6.4.2 Certified cable entries, thread adapters and sealing plugs....................................................76
6.4.3 Inserting the cable into the 1XB.. terminal box with ring seal.................................................77
6.4.4 Laying cables.........................................................................................................................78
6.4.5 Connecting cables with cable lugs.........................................................................................78
6.4.6 Connection without cable lugs...............................................................................................79
6.4.7 Use of aluminum conductors..................................................................................................81
6.4.8 Using single-stranded cables.................................................................................................82
6.4.9 Internal equipotential bonding................................................................................................82
6.4.10 Stepless mating face for sealing in the terminal box cover (not for GT640)..........................82
6.4.11 Minimum air clearances.........................................................................................................83
6.4.12 Finishing connection work......................................................................................................83
6.5 Connecting the auxiliary circuits.............................................................................................83
6.5.1 Selecting cables.....................................................................................................................83
6.5.2 Bringing cables into the auxiliary terminal box and routing them...........................................84
6.5.3 Connect metal shield in the terminal box ..............................................................................85
6.5.4 Intrinsically safe circuits for sensors or probes......................................................................85
6.5.5 Connecting temperature monitoring for the stator winding....................................................85
6.5.6 Terminating the connection work (auxiliary circuit)................................................................86
7 Start-up.......................................................................................................................................................87
7.1 Checks to be carried out prior to commissioning ..................................................................87
7.2 Converter operation...............................................................................................................88
7.2.1 Operation on a converter with a low pulse frequency............................................................89
7.3 Measuring the insulation resistance before commissioning...................................................89
7.4 Greasing the roller bearings prior to commissioning..............................................................90
7.5 Setpoint values for monitoring the bearing temperature........................................................91
7.6 Set values for monitoring the winding temperature................................................................91
7.7 Test run..................................................................................................................................92
7.8 De-energizing.........................................................................................................................93
8 Operation....................................................................................................................................................95
8.1 Safety guidelines in operation................................................................................................95
8.2 Operation in hazardous areas................................................................................................96
8.3 Switching off the anti-condensation heating...........................................................................97
8.4 Switching on the machine......................................................................................................98
8.5 Regreasing roller bearings.....................................................................................................98
Table of contents
SIMOTICS TN Series N-compact 1LA8
Operating Instructions 08/2017 7