Installation; Machine Design; Regulations; Cooling And Ventilation - Siemens SIMOTICS SD Operating Instructions Manual

3.3

Installation

3.3.1

Machine design

Machines of this series are low-voltage three-phase induction drives with a cylindrical shaft
extension and keyway. They can be supplied as single-speed machines with different efficiency
classes or as pole changing machines for several speeds.
In the case of machines with feet (IM B3 type of construction), the feet are cast or bolted on.
It is possible to change over the bolted on mounting feet on the machine enclosure, for
example to change the terminal box position; only authorized retrofit partners may carry out
this work.
Measures for alignment and mounting (Page 57)
3.3.2

Regulations

The regulations and standards used as the basis for designing and testing this machine are
stamped on the rating plate. The machine design basically complies with the following
standards:
Table 3-1 Applicable general regulations
Feature
Dimensioning and operating behavior
Procedure for determining the losses and the efficiency of rotating electrical
machines and inspections
Degree of protection
Cooling
Type of construction
Terminal designations and direction of rotation
Noise emission
Integrated thermal protection
Starting characteristics of rotating electrical machines
Vibration severity grades
Efficiency classification of three-phase squirrel-cage induction motors
IEC standard voltages
3.3.3

Cooling and ventilation

The machines of this series are three-phase induction machines with a closed primary (internal)
cooling circuit and an open secondary cooling circuit (surface cooling). The surface cooling
varies depending on the version.
1LE5, 1PC4 shaft heights 280 ... 355
Operating Instructions, 11/2022, A5E41454666A
Standard EAC
EN/IEC 60034-1 GOST IEC 60034-1
EN/IEC 60034-2-1 GOST IEC 60034-2-1
EN/IEC 60034-2-2 GOST IEC 60034-2-2
EN/IEC 60034-2-3 GOST IEC 60034-2-3
EN/IEC 60034-5 GOST IEC 60034-5
EN/IEC 60034-6 GOST R IEC 60034-6
EN/IEC 60034-7 GOST R IEC 60034-7
EN/IEC 60034-8 GOST 26772
EN/IEC 60034-9 GOST IEC 60034-9
EN/IEC 60034-11 GOST 27888
EN/IEC 60034-12 GOST IEC 60034-12
EN/IEC 60034-14 GOST IEC 60034-14
EN/ GOST IEC 60034-30-1
IEC 60034-30-1
IEC 60038 GOST R IEC 61800-1
Description
3.3 Installation
27