Siemens SIMOTICS TN N-compact 1LH8 - Page 7

6.3.5 Connecting the machine for a specific direction of rotation....................................................67
6.4 Introducing and routing the cables.........................................................................................67
6.4.1 Inserting the cable into the terminal box................................................................................67
6.4.2 Laying cables.........................................................................................................................68
6.4.3 Connecting cables with cable lugs.........................................................................................68
6.4.4 Use of aluminum conductors..................................................................................................69
6.4.5 Using single-stranded cables.................................................................................................70
6.4.6 Internal equipotential bonding................................................................................................70
6.4.7 Stepless mating face for sealing in the terminal box cover (not for GT640)..........................70
6.4.8 Minimum air clearances.........................................................................................................70
6.5 Connecting the auxiliary circuits.............................................................................................71
6.5.1 Selecting cables.....................................................................................................................71
6.5.2 Connecting temperature monitoring for the stator winding....................................................71
7 Start-up.......................................................................................................................................................73
7.1 Checks to be carried out prior to commissioning ..................................................................73
7.2 Converter operation...............................................................................................................74
7.2.1 Operation on a converter with a low pulse frequency............................................................75
7.3 Measuring the insulation resistance before commissioning...................................................75
7.4 Greasing the roller bearings prior to commissioning..............................................................76
7.5 Setpoint values for monitoring the bearing temperature........................................................77
7.6 Set values for monitoring the winding temperature................................................................77
7.7 Test run..................................................................................................................................78
7.8 De-energizing.........................................................................................................................79
8 Operation....................................................................................................................................................81
8.1 Safety guidelines in operation................................................................................................81
8.2 Switching off the anti-condensation heating...........................................................................82
8.3 Switching on the machine......................................................................................................83
8.4 Regreasing roller bearings.....................................................................................................83
8.5 Switching off the water-cooling system..................................................................................83
8.6 Switching on again after an emergency switching-off............................................................83
8.7 Stoppages..............................................................................................................................83
8.7.1 Avoidance of condensation or formation of condensation within the machine.......................84
8.7.2 Avoidance of frost and corrosion damage in the cooling system...........................................84
8.7.3 Avoidance of damage to roller bearings during stoppages....................................................85
8.7.4 Shaft grounding brushes (option)...........................................................................................85
8.7.5 Measurement of the insulation resistance after an extended stoppage.................................85
8.8 Decommissioning the machine..............................................................................................86
8.9 Re-commissioning the machine.............................................................................................86
8.10 faults.......................................................................................................................................86
8.10.1 Inspections in the event of faults............................................................................................86
8.10.2 Electrical faults.......................................................................................................................88
Table of contents
SIMOTICS TN Series N-compact 1LH8
Operating Instructions 06/2017 7