5.2 Preparing for installation.................................................................................................... 50
5.2.1 Requirements for installation ............................................................................................. 50
5.2.2 Insulation resistance .......................................................................................................... 51
5.2.2.1 Insulation resistance and polarization index ....................................................................... 51
5.2.2.2 Checking the insulation resistance and polarization index of the winding............................ 52
5.3 Installing the machine........................................................................................................ 55
5.3.1 Preparing the assembly area............................................................................................... 55
5.3.2 Lift the machine to where it will be mounted and position it............................................... 55
5.3.3 Machines with type of construction IM B15, IM B9, IM V8 and IM V9................................... 56
5.3.4 Foot mounting................................................................................................................... 56
5.4 Aligning and xing the machine......................................................................................... 57
5.4.1 Measures for alignment and mounting............................................................................... 57
5.4.2 Flatness of the supporting surfaces for conventional motors............................................... 58
5.4.3 Machine frame mounting feet (special design) ................................................................... 58
5.5 Installing the machine........................................................................................................ 59
5.5.1 Preconditions for smooth, vibration-free operation ............................................................. 59
5.5.2 Aligning the machine to the driven machine and mounting................................................ 59
5.5.2.1 Selecting bolts ................................................................................................................... 59
5.5.2.2 Horizontal types of construction with mounting feet .......................................................... 59
5.5.2.3 Horizontal types of construction with ange....................................................................... 60
5.5.2.4 Vertical types of construction with ange........................................................................... 60
5.5.3 Removing the rotor shipping brace..................................................................................... 61
5.5.4 Recommended alignment accuracy.................................................................................... 61
5.5.5 Mounting the drive output elements.................................................................................. 62
6 Electrical connection ........................................................................................................................... 65
6.1 Safety instructions for the electrical connection.................................................................. 65
6.2 Connecting the machine.................................................................................................... 66
6.2.1 Selecting cables ................................................................................................................. 66
6.2.2 Terminal box...................................................................................................................... 67
6.2.2.1 Circuit diagram inside the terminal box cover ..................................................................... 67
6.2.2.2 Direction of rotation........................................................................................................... 67
6.2.2.3 Terminal marking............................................................................................................... 68
6.2.2.4 Protruding connection cables ............................................................................................. 68
6.2.2.5 Connecting protruding cables ............................................................................................ 69
6.2.2.6 Connection with/without cable lugs ................................................................................... 69
6.2.2.7 Minimum air clearances ..................................................................................................... 70
6.2.3 Screw-type connections with connecting thread................................................................. 70
6.3 Tightening torques............................................................................................................. 70
6.3.1 Cable entries, sealing plugs and thread adapters................................................................. 70
6.4 Connecting the grounding conductor................................................................................. 71
6.4.1 Minimum surface area of grounding conductor .................................................................. 71
6.4.2 Grounding connection type................................................................................................ 71
6.5 Connecting the temperature sensor/anti-condensation heater ............................................ 72
6.6 Conductor connection........................................................................................................ 73
6.6.1 Conductor connection type shaft height 280...................................................................... 74
6.6.2 Conductor connection type shaft height 315 ... 355 ........................................................... 75
6.6.3 Connecting aluminum conductors...................................................................................... 76
Table of contents
1LE5, 1PC4 shaft heights 280 ... 355
Operating Instructions, 11/2022, A5E41454666A 5
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