Siemens 1LA2

2
Table of Content
Pg. No.
1. Safety information ............................................................................................ 3
1.1 Denitions, warning information ............................................................... 3
1.2 Safety and application information ............................................................ 5
2. Description ....................................................................................................... 5
2.1 General ..................................................................................................... 5
2.2 Terminal Box ............................................................................................. 5
3. Operation ....................................................................................................... 6
3.1 Inspection, storage and transport .............................................................. 6
3.2 Mounting .................................................................................................. 7
3.3 Installation ................................................................................................ 7
3.4 Electrical connection ................................................................................. 8
3.4.1 Earthing .......................................................................................... 9
3.5 Checking the insulation resistance ............................................................. 9
3.6 Bearing and lubrication............................................................................ 10
3.7 Balancing, Transmission elements ............................................................ 10
3.8 Commissioning ....................................................................................... 10
4 Electromagnetic Compatibility ........................................................................ 12
5 Maintenance ................................................................................................... 12
5.1 General ................................................................................................... 13
5.2 Dismantling............................................................................................. 13
5.2.1 Pressing on and pulling off drive elements ..................................... 13
5.2.2 Fans .............................................................................................. 13
5.2.3 Removal of bearing ........................................................................ 14
5.3 Reassembly ............................................................................................. 14
6 Spare Parts ..................................................................................................... 15
Applicable Standards ......................................................................................... 15
7 Motor Troubleshooting Chart .......................................................................... 16
Fig.1 Exploded view for Frame Size upto 132 .................................................... 18
Fig.2 Pressing on and pulling off drive elements, changing bearings ................ 19
Fig.3 Terminal Box for 63, 71, 80, 90S and 90L frames .................................... 20
Fig.4 Terminal Box for 100L, 112M, 132S and 132M frames ............................. 21