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Siemens 1LA8 User Manual

Siemens 1LA8
160 pages
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www.siemens.com/drives
Low-voltage motor
SIMOTICS TN Series N-compact
Type 1LA8
Operating Instructions
Installation Instructions
Edition 08/2017
For employment in zone 2 (IEC/EN 60079-10-1)
II 3G Ex ec IIC T3 Gc

Table of Contents

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Siemens 1LA8 Specifications

General IconGeneral
Number of Poles2, 4, 6, 8
Cooling MethodIC411
Rated Power0.55 - 315 kW
Frame Size80 - 355
Frequency50 Hz, 60 Hz
Protection ClassIP55
Efficiency ClassIE1
MountingIM B3, IM B5, IM V1, IM V3

Summary

Introduction

Safety information

2.2 The five safety rules

Outlines the essential safety rules for working on electrical equipment.

2.3 Qualified personnel

Defines the qualifications and requirements for personnel performing work on the machine.

2.4 Safe handling

Provides general guidelines and warnings for safe handling and operation of the machine.

2.5 For use in hazardous Zone 2 or Zone 22

Specifies conditions and precautions for operating the machine in hazardous areas.

Description

Ex nA or Ex ec type of protection

Details the machine's type of protection for hazardous areas according to IEC/EN standards.

Preparations for use

4.15 Transport and storage

Covers procedures for safely transporting and storing the machine.

4.16 Converter operation

Notes that this chapter is relevant for machines ordered for converter operation.

Assembly

5.1 Preparations for installation

Outlines requirements before starting installation, including access to instructions and machine readiness.

5.2 Lift the machine to where it will be installed, and position it

Details the process of lifting, positioning, and preparing the machine for installation.

5.3 Installing the machine

Provides instructions and safety guidelines for the physical installation of the machine.

Electrical connection

6.1 Basic rules

Covers general principles for safe and reliable electrical connections, including grounding and cable routing.

6.3 Preparation

Covers essential preparation steps before making electrical connections, starting with winding checks.

6.4 Introducing and routing the cables

Covers the process of introducing and routing cables into terminal boxes, including cable entry plates.

6.5 Connecting the auxiliary circuits

Guides on connecting auxiliary circuits, including cable selection and routing.

Start-up

7.1 Checks to be carried out prior to commissioning

Lists essential checks to perform before commissioning the system, ensuring undamaged and correctly installed components.

7.2 Converter operation

Notes relevance for machines ordered for converter operation and states where to find parameterization data.

7.3 Measuring the insulation resistance before commissioning

Explains the importance of measuring insulation resistance and PI before first startup or after downtime.

7.4 Greasing the roller bearings prior to commissioning

Provides instructions for regreasing roller bearings based on storage duration and conditions.

7.5 Setpoint values for monitoring the bearing temperature

Specifies setpoints for bearing temperature monitoring for disconnection and warning during commissioning and normal operation.

7.6 Set values for monitoring the winding temperature

Details setpoints for winding temperature monitoring for shutdown prior to commissioning.

7.7 Test run

Guides on performing a test run without load, then with load, and monitoring critical parameters.

Operation

8.1 Safety guidelines in operation

Covers critical safety guidelines for operating the machine, addressing live parts, rotating parts, and hot surfaces.

8.2 Operation in hazardous areas

Details safety handling and general requirements for operating electrical systems in hazardous zones.

8.10 faults

Introduces the section on identifying and rectifying electrical or mechanical faults.

Maintenance

9.1 Inspection and maintenance

Introduces the importance of regular inspection and maintenance to prevent consequential damage.

9.2 Corrective Maintenance

Covers procedures for performing repairs and maintenance tasks on the machine.

Service and Support

Technical data

B.1 Tightening torques for screw and bolt connections

Provides detailed tightening torques for bolted connections based on thread size and application case.

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