Siemens SIMATIC S5 1P 243 Operating instructions

Answers for industry.
LOHER CHEMSTAR
Induction motor
Type 1PS5
Operating Instructions / Installation Instructions N-R 601d
Edition 03/2014
For employment in zone 1 or zone 2 (IEC/EN 60079-10-1)
0102
II 2G Ex d IIC/IIB T. Gb

11.03.2014 02:49
V4.00

Induction motor
LOHER CHEMSTAR
1PS5
Operating Instructions
Installation Instructions
For employment in zone 1 or zone 2 (IEC/EN
60079-10-1)
0102
II 2G Ex d IIC/IIB T. Gb
Edition 03/2014
Introduction
1
Safety notes
2
Description
3
Preparations for use
4
Assembling
5
Electrical connection
6
Commissioning
7
Operation
8
Maintenance
9
Spare parts
10
Disposal
11
Service and Support
A
Technical data and drawings
B
Quality documents
C

Legal information
Warning notice system
This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent
damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert
symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are
graded according to the degree of danger.
DANGER
indicates that death or severe personal injury will result if proper precautions are not taken.
WARNING
indicates that death or severe personal injury may result if proper precautions are not taken.
CAUTION
indicates that minor personal injury can result if proper precautions are not taken.
NOTICE
indicates that property damage can result if proper precautions are not taken.
If more than one degree of danger is present, the warning notice representing the highest degree of danger will be
used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to property
damage.
Qualified Personnel
The product/system described in this documentation may be operated only by personnel qualified for the specific
task in accordance with the relevant documentation, in particular its warning notices and safety instructions. Qualified
personnel are those who, based on their training and experience, are capable of identifying risks and avoiding
potential hazards when working with these products/systems.
Proper use of Siemens products
Note the following:
WARNING
Siemens products may only be used for the applications described in the catalog and in the relevant technical
documentation. If products and components from other manufacturers are used, these must be recommended or
approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and
maintenance are required to ensure that the products operate safely and without any problems. The permissible
ambient conditions must be complied with. The information in the relevant documentation must be observed.
Trademarks
All names identified by ® are registered trademarks of Siemens AG. The remaining trademarks in this publication
may be trademarks whose use by third parties for their own purposes could violate the rights of the owner.
Disclaimer of Liability
We have reviewed the contents of this publication to ensure consistency with the hardware and software described.
Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the information in
this publication is reviewed regularly and any necessary corrections are included in subsequent editions.
Siemens AG
Industry Sector
Postfach 48 48
90026 NÜRNBERG
GERMANY
Order number: N-R 601d
Ⓟ 03/2014 Subject to change
Copyright © Siemens AG 2014.
All rights reserved

Table of contents
1 Introduction.................................................................................................................................................11
2 Safety notes................................................................................................................................................13
2.1 Information for the nominated person in control of the electrical installation..............................13
2.2 The five safety rules....................................................................................................................13
2.3 Qualified personnel.....................................................................................................................14
2.4 Safe handling..............................................................................................................................14
2.5 Use in hazardous areas..............................................................................................................16
2.6 Electrostatic sensitive devices.....................................................................................................17
2.7 Electromagnetic compatibility......................................................................................................18
2.8 Interference immunity..................................................................................................................18
2.9 Interference voltages when operating the converter...................................................................18
2.10 Electromagnetic fields when operating electrical power engineering installations......................19
2.11 Ventilation....................................................................................................................................19
3 Description..................................................................................................................................................21
4 Preparations for use...................................................................................................................................27
4.1 Safety-related aspects to consider when configuring the plant...................................................27
4.2 Motors without final paint coating................................................................................................27
4.3 Ensuring adequate cooling..........................................................................................................27
4.4 Thermal motor protection............................................................................................................28
4.5 Interlock circuit for anti-condensation heating.............................................................................28
4.6 Interlock circuit for the external fan motor...................................................................................28
4.7 Noise emissions..........................................................................................................................29
4.8 Voltage and frequency fluctuations during line operation...........................................................29
4.9 System-inherent frequencies.......................................................................................................30
4.10 Transport and storage.................................................................................................................30
4.10.1 Transport markings.....................................................................................................................30
4.10.2 Checking the delivery..................................................................................................................30
4.10.3 Lifting and transportation.............................................................................................................31
4.10.4 Attaching the rotor shipping brace prior to storage.....................................................................32
4.10.5 Storage for up to two years.........................................................................................................33
4.10.5.1 Storage conditions.......................................................................................................................33
4.10.5.2 Storing motors with water cooling down to -20 °C......................................................................33
4.10.6 Storage for between two and four years.....................................................................................33
4.10.7 Storage at low temperatures.......................................................................................................34
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Operating Instructions 03/2014 5

4.10.8 Storing motors together with the driven machine........................................................................34
4.10.9 Storage outdoors.........................................................................................................................34
4.10.10 Commissioning after storage.......................................................................................................35
4.10.10.1 Insulation resistance and polarization index..........................................................................35
4.10.10.2 Lubricating the roller bearings ...............................................................................................35
4.10.10.3 Regreasing roller bearings after storage periods of up to 2 years.........................................35
4.10.10.4 Regreasing roller bearings after storage periods of between 2 and 4 years..........................36
4.11 Converter operation.....................................................................................................................36
4.11.1 Reducing bearing currents during operation on the converter ...................................................38
4.11.2 Insulated bearings when operating the converter.......................................................................39
5 Assembling.................................................................................................................................................43
5.1 Preparations for installation.........................................................................................................43
5.1.1 Safety instructions for installation................................................................................................43
5.1.2 Requirements for installation.......................................................................................................44
5.2 Lift the machine to where it will be installed, and position it........................................................45
5.2.1 Preconditions for correct alignment and secure attachment ......................................................45
5.2.2 Checking the load handling attachments....................................................................................45
5.2.3 Removing the rotor shipping brace.............................................................................................45
5.2.4 Mounting the output elements.....................................................................................................46
5.2.5 Lifting and transportation.............................................................................................................47
5.2.6 Setting down the machine...........................................................................................................49
5.2.7 Roughly aligning the machine.....................................................................................................49
5.3 Installing the machine..................................................................................................................49
5.3.1 Preconditions for smooth, vibration-free operation......................................................................49
5.3.2 Aligning the machine to the driven machine and mounting.........................................................50
5.3.2.1 Horizontal types of construction with mounting feet....................................................................50
5.3.2.2 Horizontal types of construction with flange................................................................................50
5.3.2.3 Vertical types of construction with flange....................................................................................51
5.3.3 Alignment accuracy.....................................................................................................................51
5.3.4 Axial and radial forces ................................................................................................................52
5.4 Cooling water supply for machines with water cooling................................................................52
6 Electrical connection...................................................................................................................................55
6.1 Preparation..................................................................................................................................55
6.1.1 Selecting cables..........................................................................................................................55
6.2 Connecting..................................................................................................................................56
6.2.1 Installing intrinsically safe circuits................................................................................................56
6.2.2 Terminal boxes with type of protection "Ex d" ............................................................................57
6.2.3 Terminal boxes with type of protection "Ex e" ............................................................................57
6.2.4 Connecting the grounding conductor..........................................................................................58
6.2.5 Circuit diagram in the terminal box cover....................................................................................58
6.2.6 Terminal designation...................................................................................................................59
6.2.7 Connecting the machine for a specific direction of rotation.........................................................59
6.2.8 Terminal box................................................................................................................................59
6.2.9 Minimum air clearances..............................................................................................................60
6.2.10 Cable ends with wire end sleeves...............................................................................................61
6.2.11 Connection with terminal board...................................................................................................61
6.2.12 Tightening torques for cable glands ...........................................................................................62
6.2.13 Connecting aluminum conductors...............................................................................................63
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6Operating Instructions 03/2014

6.2.14 O-ring seal ..................................................................................................................................63
6.2.15 Finishing connection work...........................................................................................................64
6.2.16 Internal equipotential bonding ....................................................................................................64
7 Commissioning...........................................................................................................................................67
7.1 Checks to be carried out prior to commissioning .......................................................................67
7.2 Insulation resistance and polarization index................................................................................69
7.3 Testing the insulation resistance and polarization index.............................................................70
8 Operation....................................................................................................................................................73
8.1 Safety instructions during operation............................................................................................73
8.2 Switching on the machine...........................................................................................................75
8.3 Switching off the external fan......................................................................................................75
8.4 Switching off the water-cooling system.......................................................................................75
8.5 Switching on again after an emergency switching-off.................................................................75
8.6 Stoppages...................................................................................................................................75
8.6.1 Switching on the anti-condensation heater.................................................................................75
8.6.2 Avoidance of frost and corrosion damage in the cooling system................................................76
8.6.3 Avoidance of damage to roller bearings during stoppages.........................................................76
8.7 Decommissioning the machine...................................................................................................77
8.8 Re-commissioning the machine..................................................................................................77
8.9 Faults...........................................................................................................................................77
8.9.1 Inspections in the event of faults.................................................................................................77
8.9.2 Electrical faults............................................................................................................................77
8.9.3 Mechanical faults.........................................................................................................................78
8.9.4 Roller bearing faults....................................................................................................................79
8.9.5 Faults at the external fan.............................................................................................................80
8.9.6 Cooling system faults (water jacket cooling)...............................................................................80
9 Maintenance...............................................................................................................................................81
9.1 Inspection and maintenance.......................................................................................................81
9.1.1 Inspections in the event of faults.................................................................................................84
9.1.2 First inspection............................................................................................................................84
9.1.3 General inspection......................................................................................................................84
9.1.4 Servicing the roller bearings........................................................................................................85
9.1.5 Bolt grade....................................................................................................................................85
9.1.6 Mechanical explosion protection for roller bearings....................................................................86
9.1.7 Maintenance................................................................................................................................87
9.1.7.1 Explosion protection for machines with type of protection "Ex d"................................................87
9.1.7.2 Explosion hazard due to increased surface temperature............................................................87
9.1.7.3 Insulation resistance and polarization index................................................................................87
9.1.7.4 Grease service life and fill quantities...........................................................................................89
9.1.7.5 Regreasing intervals and types of grease for operating rolling-contact bearings.......................90
9.1.7.6 Alternative types of grease for the operation of roller bearings...................................................92
9.1.7.7 Cleaning the cooling air passages..............................................................................................93
9.1.7.8 Maintenance and repair for machines of protection type "Ex d" .................................................93
9.1.7.9 Maintaining terminal boxes..........................................................................................................95
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Operating Instructions 03/2014 7

9.1.7.10 Touch up any damaged paintwork..............................................................................................96
9.1.7.11 Repainting...................................................................................................................................96
9.2 Repair..........................................................................................................................................97
9.2.1 Anti-condensation heating spare parts........................................................................................98
9.2.2 Insulated roller bearings..............................................................................................................98
10 Spare parts.................................................................................................................................................99
10.1 Ordering data..............................................................................................................................99
10.2 Replacing roller bearings.............................................................................................................99
10.3 Using commercially available spare parts.................................................................................100
10.4 Anti-condensation heating spare parts .....................................................................................100
10.5 Spare parts list, frame sizes 071 to 132....................................................................................101
10.6 Spare parts list, frame sizes 160 to 280....................................................................................102
10.7 Spare parts list, frame size 315.................................................................................................104
10.8 Spare parts list, frame size 355.................................................................................................105
10.9 Spare parts list for terminal boxes with type of protection "Ex e", frame sizes 071-160...........108
10.10 Spare parts list for terminal boxes with type of protection "Ex d", frame sizes 071-160...........110
10.11 Spare parts list for terminal boxes with type of protection "Ex d", frame sizes 180-225...........112
10.12 Spare parts list for terminal boxes with type of protection "Ex e", frame sizes 180-225 ..........114
10.13 Spare parts list for terminal boxes with type of protection "Ex d", frame sizes 250 to 355........115
10.14 Spare parts list for terminal boxes with type of protection "Ex d", frame sizes 250 to 355........117
11 Disposal....................................................................................................................................................121
11.1 Introduction................................................................................................................................121
11.2 Preparing for disassembly.........................................................................................................121
11.3 Dismantling the machine...........................................................................................................122
11.4 Disposal of components............................................................................................................122
A Service and Support.................................................................................................................................125
A.1 Siemens Service Center............................................................................................................125
B Technical data and drawings....................................................................................................................127
B.1 Tightening torques for screw and bolt connections...................................................................127
C Quality documents....................................................................................................................................129
C.1 IECEx certificate........................................................................................................................129
C.2 EC Declaration of Conformity....................................................................................................130
C.3 EC Declaration of Conformity, Zone 21 or 22...........................................................................133
C.4 Data...........................................................................................................................................135
Index.........................................................................................................................................................137
Table of contents
LOHER CHEMSTAR 1PS5
8Operating Instructions 03/2014

Tables
Table 3-1 Marking for machines with type of protection Ex d for Zone 1....................................................22
Table 3-2 Marking for machines with Ex tb type of protection for zone 21..................................................23
Table 3-3 Marking for machines with Ex tc type of protection for Zone 22 without certificate....................23
Table 3-4 Machine design ..........................................................................................................................23
Table 3-5 Motor version with type of explosion protection Ex t ..............................................................24
Table 3-6 Machine version with type of explosion protection Ex d..............................................................24
Table 5-1 Recommended alignment accuracy............................................................................................51
Table 6-1 Electrical data..............................................................................................................................56
Table 6-2 Determining the cross-section of the grounding conductor.........................................................58
Table 6-3 Terminal designations using the 1U1-1 as an example..............................................................59
Table 6-4 Minimum air clearance dependent on rms value of the alternating voltage Urms.........................60
Table 6-5 Tightening torques for standard cable glands [Nm] ................................................................62
Table 7-1 Stator winding insulation resistance at 40° C..............................................................................71
Table 8-1 Electrical faults .......................................................................................................................78
Table 8-2 Mechanical faults .....................................................................................................................78
Table 8-3 Roller bearing faults ...............................................................................................................79
Table 8-4 Cooling system faults ...............................................................................................................80
Table 8-5 Cooling system faults .............................................................................................................80
Table 9-1 Checks after installation or repair ...............................................................................................84
Table 9-2 Checks that have to be performed during the general inspection...............................................84
Table 9-3 Bolt grade BG071 to BG315 ....................................................................................................85
Table 9-4 Bolt grade BG315 to BG910.......................................................................................................86
Table A-1 Service numbers.......................................................................................................................125
Table B-1 Tightening torques for bolted connections with a tolerance of ±10%........................................127
Figures
Figure 4-1 Schematic representation of a single drive.................................................................................39
Figure 4-2 Schematic representation of a tandem drive...............................................................................40
Figure 5-1 Balancing type on the drive-end side..........................................................................................46
Figure 6-1 Conductor connection.................................................................................................................61
Figure 6-2 Conductor connection.................................................................................................................62
Figure 10-1 E-AN000-0007...........................................................................................................................101
Figure 10-2 E-AN000-0008...........................................................................................................................102
Figure 10-3 E-AN000-0009...........................................................................................................................104
Figure 10-4 E-DN000-0010..........................................................................................................................106
Figure 10-5 E-9-101_162-0002.....................................................................................................................108
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Figure 10-6 E-9-108_213-0001.....................................................................................................................110
Figure 10-7 E-9-108_213-0002.....................................................................................................................112
Figure 10-8 E-9-101_208-0002.....................................................................................................................114
Figure 10-9 E-9-101_285-0002.....................................................................................................................115
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LOHER CHEMSTAR 1PS5
10 Operating Instructions 03/2014

Introduction 1
These instructions describe the machine and explain how to handle it, from initial delivery to
final disposal of the equipment. Keep these instructions for later use.
Read these operating instructions before you handle the machine and follow the instructions
to become familiar with its design and operating principles and thus ensure safe, problem-free
machine operation and long service life.
If you have suggestions for improving the document, please contact the Service Center
(Page 125).
Text format features
The warning notice system is explained on the rear of the inside front. Always follow the safety
instructions and notices in these instructions.
In addition to the safety-related warning notices which you must read, you will find the text in
these instructions is formatted in the following way:
1. Handling instructions are always formatted as a numbered list. Always perform the steps
in the order given.
● Lists are formatted as bulleted lists.
– Lists on the second level are hyphenated.
Note
A Note is an important item of information about the product, handling of the product or the
relevant section of the document. Notes provide you with help or further suggestions/ideas.
LOHER CHEMSTAR 1PS5
Operating Instructions 03/2014 11

Introduction
LOHER CHEMSTAR 1PS5
12 Operating Instructions 03/2014

Safety notes 2
2.1 Information for the nominated person in control of the electrical
installation
This machine has been designed and built in accordance with Directive 94/9/EC ("Explosion
Protection Directive") and is intended for use in industrial plants with potentially explosive
atmosphere. Commissioning in the European Community is forbidden until the plant into which
the machine will be installed has been shown to conform with this directive. Please observe
the country-specific regulations when using the machine outside the European Community.
WARNING
Commissioning prior to determining the conformance
If the machine is commissioned prior to determining the plant conformance, the explosion
protection of the plant is not guaranteed. An explosion can result. This can result in death,
serious injury or material damage.
Commission the machine only when the plant conformance with the explosion protection
directive has been confirmed.
2.2 The five safety rules
For your personal safety and to prevent material damage when carrying out any work, always
observe the safety instructions and the following five safety rules, according to EN 50110‑1
"Dead working". Apply the five safety rules in the sequence stated before starting work.
Five safety rules
1. Disconnect completely.
Disconnect the auxiliary circuits, for example anti-condensation heating.
2. Secure against reconnection.
3. Verify absence of operating voltage.
4. Carry out earthing and short-short-circuiting.
5. Provide protection against adjacent live parts.
To energize the system, apply the measures in reverse order.
LOHER CHEMSTAR 1PS5
Operating Instructions 03/2014 13

2.3 Qualified personnel
All work at the machine must be carried out by qualified personnel only. For the purpose of
this documentation, qualified personnel is taken to mean people who fulfill the following
requirements:
● Through appropriate training and experience, they are able to recognize and avoid risks
and potential dangers in their particular field of activity.
● They have been instructed to carry out work on the machine by the appropriate person
responsible.
2.4 Safe handling
Workplace safety depends on the attentiveness, care, and common sense of the personnel
who install, operate, and maintain the machine. In addition to the safety measures cited, as a
matter of principle, the use of caution is necessary when you are near the machine. Always
pay attention to your safety.
Also observe the following to prevent accidents:
● General safety regulations applicable in the country where the machine is deployed.
● Manufacturer-specific and application-specific regulations
● Special agreements made with the operator
● Separate safety instructions supplied with the machine
● Safety symbols and instructions on the machine and its packaging
WARNING
Live parts
Electric machines contain live parts.
Fatal or severe injuries and substantial material damage can occur if the covers are removed
or if the machine is not handled, operated, or maintained properly.
● Always observe the "five safety rules (Page 13)" when carrying out any work on the
machine.
● Only remove the covers using the methods described by these operating instructions.
● Operate the machine properly.
● Regularly and correctly maintain the machine.
Safety notes
2.4 Safe handling
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14 Operating Instructions 03/2014

WARNING
Rotating components
Electric machines contain dangerous rotating parts.
Fatal or severe injuries and substantial material damage can occur if the covers are removed
or if the machine is not handled, operated, or maintained properly.
● Only remove the covers using the methods described by these operating instructions.
● Operate the machine properly.
● Perform regular maintenance on the machine.
● Secure free-standing shaft ends.
WARNING
Hot surfaces
Electric machines have hot surfaces. Do not touch these surfaces. They could cause burns.
● Allow the machine to cool before starting work on the machine.
●Only remove the covers using the methods described by these operating instructions.
● Operate the machine properly.
CAUTION
Hazardous substances
Chemical substances required for the setup, operation and maintenance of machines can
present a health risk.
Poisoning, skin damage, cauterization of the respiratory tract, and other health damage may
result.
● Read the information in these operating instructions and the product information supplied
by the manufacturer.
● Observe the relevant safety regulations and wear the personal protective equipment
specified.
CAUTION
Flammable substances
Chemical substances required for the setup, operation and maintenance of machines may
be flammable.
Burns and other damage to health and material may result.
● Read the information in these operating instructions and the product information supplied
by the manufacturer.
● Observe the relevant safety regulations and wear the personal protective equipment
specified.
Safety notes
2.4 Safe handling
LOHER CHEMSTAR 1PS5
Operating Instructions 03/2014 15

WARNING
Noise emissions
During operation, the machine's noise emission levels can exceed those permitted at the
workplace, which can cause hearing damage.
Take steps to reduce noise, such as introducing covers and protective insulation or adopting
hearing protection measures, so that the machine can be operated safely within your system.
2.5 Use in hazardous areas
Electrical systems in hazardous zones must be assembled, installed, and operated by the
applicable responsible persons in accordance with the applicable rules and regulations.
Note
The basic requirements relating to electrical systems and their operation in hazardous areas
are described, for instance, in EU Directive 1999/92/EC as well as in IEC / EN 60079-14.
Ignition hazards
The assessment of operating risks and local operating conditions and the necessary
monitoring methods must be clarified and made binding by the system operator in consultation
with the responsible supervisory authority. The required measures must be adhered to at all
times. The machine manufacturer cannot provide any generally applicable recommendations.
Please observe the information in these operating instructions.
Note
The basic requirements relating to the assessment of ignition hazards arising from electrical
equipment and their operation in hazardous zones are specified, for instance, in 94/9/EC and
1999/92/EC directives as well as in the IEC / EN 60079 series of standards.
If a third-party certification is available for the machine, then carefully comply with the technical
data defined in it and any special conditions.
The certificate must be available before commissioning.
Safety notes
2.5 Use in hazardous areas
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16 Operating Instructions 03/2014

2.6 Electrostatic sensitive devices
ESD protective measures
NOTICE
Electrostatic discharge
Electronic modules contain components that can be destroyed by electrostatic discharge.
These modules can be easily destroyed by improper handling.
To protect your equipment against damage, follow the instructions given below.
● Never touch electronic modules unless absolutely necessary in the course of maintenance
and repair procedures.
● If the modules have to be touched, the body of the person concerned must be
electrostatically discharged immediately beforehand and be grounded.
● Electronic modules should not be brought into contact with electrically insulating materials
such as plastic film, plastic parts, insulating table supports or clothing made of synthetic
fibers.
● Always place electrostatic sensitive devices on conductive bases.
● Always pack, store and transport electronic modules or components in conductive
packaging, e.g. metallized plastic or metal containers, conductive foam material or
domestic aluminum foil.
The necessary ESD protective measures for electrostatic sensitive devices are illustrated once
again in the following drawings:
d
ff f f
be
a a a
c c c
e
b
f
d d
e
a

(1) Sitting (2) Standing (3) Standing/sitting
a = conductive floor surface b = ESD table c = ESD shoes
d = ESD overall e = ESD wristband f = cabinet ground connection
Safety notes
2.6 Electrostatic sensitive devices
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Operating Instructions 03/2014 17

2.7 Electromagnetic compatibility
This machine is designed in accordance with IEC/EN 60034 and when used as prescribed it
satisfies the requirements of European Directive 2004/108/EC on Electromagnetic
Compatibility.
2.8 Interference immunity
The machine fulfills the requirements regarding interference immunity in accordance with IEC/
EN 61000‑6‑2.
For machines with integrated sensors (e.g. PTC thermistors), the manufacturer of the complete
system must ensure sufficient interference immunity by selecting suitable sensor signal leads
and evaluation units.
2.9 Interference voltages when operating the converter
WARNING
Interference voltages when operating the converter
When a converter is in operation, the emitted interference varies in strength depending on
the converter (manufacturer, type, interference suppression measures undertaken). On
machines with integrated sensors (e.g. PTC thermistors), interference voltages caused by
the converter may occur on the sensor lead. This can cause faults which can result in eventual
or immediate death, serious injury or material damage.
In order to avoid exceeding the limit values set for the drive system (machine and converter)
in IEC/EN 61000-6-3, the EMC information provided by the converter manufacturer must be
observed. You must put appropriate EMC measures in place.
Safety notes
2.9 Interference voltages when operating the converter
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2.10 Electromagnetic fields when operating electrical power engineering
installations
WARNING
Interference to electronic devices caused by electrical power equipment
Electrical power equipment generate electric fields during operation. Potentially lethal
malfunctions can occur in medical implants, e.g. pacemakers, in the vicinity of electrical power
equipment. Data may be lost on magnetic or electronic data carriers.
● It is forbidden for people with pacemakers to enter the vicinity of the machine.
● Protect the personnel working in the plant by taking appropriate measures, such as
erecting identifying markings, safety barriers and warning signs and giving safety talks.
● Observe the nationally applicable health and safety regulations.
● Do not carry any magnetic or electronic data media.
2.11 Ventilation
NOTICE
Ventilation
● Do not obstruct ventilation.
●Prevent the air expelled by neighboring equipment from being immediately drawn in again.
● On the vertical type of machine construction with air intake from above, protect the air
inlets from the ingress of foreign bodies and water.
● If the shaft extension is facing upwards, liquid must be prevented from entering by moving
along the shaft.
Safety notes
2.11 Ventilation
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Operating Instructions 03/2014 19

Safety notes
2.11 Ventilation
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20 Operating Instructions 03/2014