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1MB155 / 1MB555  
Operating Instructions, 03/2018, A5E41926185A 

31

 

 

Preparations for use 

 

 

Good planning and preparation of machine applications are essential in terms of keeping 

installation simple and avoiding errors, ensuring safe operation, and allowing access to the 

machine for servicing and corrective maintenance. 
This chapter outlines what you need to consider when configuring your plant in relation to 

this machine and the preparations you need to make before the machine is delivered. 

4.1

 

Safety-related aspects to consider when configuring the plant 

A number of residual risks are associated with the machine. These are described in the 

chapter titled "Safety information" (Page 11) and in related sections.  
Take appropriate safety precautions (covers, barriers, markings, etc.) to ensure the machine 

is operated safely within your plant. 

4.2

 

Observing the operating mode 

Observe the machine's operating mode. Use a suitable control system to prevent 

overspeeds, thus protecting the machine from damage. 

4.3

 

Machines without final paint coating 

For machines, which are only delivered with primer, you must paint them to comply with the 

applicable guidelines for the specific application. The primer alone does not provide 

adequate corrosion protection. 
The paint applied must conform to the requirements to avoid electrostatic charging, see 

EN 60079-0. 
Please contact the Service Center for recommendations relating to the paint finish. 

Содержание SIMOTICS XP 1MB155

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Страница 3: ..._ ___________________ Low voltage motors SIMOTICS XP 1MB155 1MB555 Operating Instructions For use in Zone 1 IEC EN 60079 10 1 Optional For use in Zone 21 IEC EN 60079 10 2 For use in Zone 22 IEC EN 60079 10 2 03 2018 A5E41926185A Introduction 1 Safety information 2 Description 3 Preparations for use 4 Assembly 5 Electrical connection 6 Start up 7 Operation 8 Maintenance 9 Spare Parts 10 Disposal 1...

Страница 4: ...ay 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 WAR...

Страница 5: ...n operating the converter 17 2 12 Special designs and construction versions 18 2 13 Special conditions for explosion proof machines 18 3 Description 19 3 1 Area of application 19 3 2 Rating plates 21 3 3 Design 22 3 3 1 Cooling and ventilation 24 3 3 1 1 Machines with a fan 24 3 3 2 Bearings 24 3 3 3 Balancing 25 3 3 4 Types of construction method of installation 25 3 3 5 Degree of protection 27 3...

Страница 6: ...39 4 7 Thermal protection 41 4 8 Interlock circuit for anti condensation heating 41 4 9 Noise emission 42 4 10 Voltage and frequency fluctuations during line operation 42 4 11 Rotational speed limit values 43 4 12 System inherent frequencies 43 4 13 Electromagnetic compatibility 43 4 14 Converter operation 45 4 14 1 Parameterizing the converter 45 4 14 2 Converter input voltage 45 4 14 3 Reducing ...

Страница 7: ...g the machine 66 6 2 1 Terminal box 66 6 2 1 1 Terminal designation 67 6 2 1 2 Circuit diagram inside the terminal box cover 67 6 2 1 3 Direction of rotation 67 6 2 1 4 Documenting holes in the terminal box 68 6 2 1 5 Cable entry 68 6 2 1 6 Thread sizes in terminal box Ex e and Ex d 69 6 2 2 Minimum air clearances 69 6 2 3 Internal equipotential bonding 70 6 3 Tightening torques 70 6 3 1 Terminal ...

Страница 8: ...e to rolling bearings during stoppages 101 8 5 2 Decommissioning the machine 101 8 5 3 Re commissioning the machine 102 8 6 faults 102 8 6 1 Inspections in the event of faults 102 8 6 2 Electrical faults 102 8 6 3 Mechanical faults 104 8 6 4 Rolling bearing faults 105 8 6 5 Faults at the external fan 105 9 Maintenance 107 9 1 Inspection and maintenance 107 9 1 1 Safety instructions for inspection ...

Страница 9: ... condensation heating 126 10 6 Parts groups definition 126 10 7 Ordering example 128 10 8 Machine parts 128 10 9 Standardized parts 130 10 10 Exploded drawings 131 10 10 1 Frame sizes 71 132 131 10 10 2 Frame sizes 160 225 132 10 10 3 Frame sizes 250 355 133 10 10 4 Ex e terminal box frame sizes 71 225 134 10 10 5 Ex e terminal box frame sizes 250 355 135 10 10 6 Auxiliary terminal box Ex e option...

Страница 10: ...Table of contents 1MB155 1MB555 8 Operating Instructions 03 2018 A5E41926185A ...

Страница 11: ...s 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 The note provides you with additional information about the product itself handling the product and the relevant documentation 1 2 Compiling personal documents On the Internet pages in Industry Online Suppo...

Страница 12: ...E41926185A Using the Documentation function you can efficiently compile your own plant or system documentation The Documentation compiled in a specific language can also be automatically exported in one of the other available languages The full functionality is only available for registered users ...

Страница 13: ...ions as well as regulations on the use of personal protective equipment are observed Note Use the services and support provided by the local service center for planning installation commissioning and service work You will find safety instructions in the individual sections of this document Follow the safety instructions for your own safety to protect other people and to avoid damage to property Ob...

Страница 14: ...onnel 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 Workpl...

Страница 15: ... 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 Regularly and correctly maintain the machine Secure free shaft extensions and other rotating part such as couplings and pulley belts so that they cannot be touched WARNING Hot surfaces Elect...

Страница 16: ...ge when operating three phase motors If the permissible sound pressure level is exceeded hearing damage can occur when operating three phase motors at their rated power Observe the maximum permissible sound pressure level according to the ISO 1680 standard The maximum permissible sound pressure level is 70 dB A 2 5 Electromagnetic fields when operating electrical power engineering installations In...

Страница 17: ...ns 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 in the 2014 34 EU 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 co...

Страница 18: ... electrostatic sensitive devices are illustrated once again in the following drawings a conductive floor sur face b ESD table c ESD shoes d ESD overall e ESD wristband f cabinet ground connection Risk of explosion due to electrostatic discharge Electrostatic discharge poses a potential ignition source Dangerous electrostatic charges can occur for example as a result of mechanical friction flowing ...

Страница 19: ...motor current The emerging harmonics can have an impermissible influence on the line power supply via the connection lines 2 11 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 undert...

Страница 20: ... type examination certificate point 17 Dust explosion protection tb Do not operate the motors with excessively thick deposits of dust When the motors are mounted with the free shaft end pointing upwards prevent foreign bodies from dropping into the ventilation openings using an appropriate mechanical design For motors with a fixed connecting cable The free end of the cable must be connected accord...

Страница 21: ... the current Machinery Directive Commissioning is prohibited until it has been absolutely identified that the end product is in conformance with this Directive Please observe the EN IEC 60204 1 standard Use of machines without CE marking Machines without CE marking are intended for operation outside the European Economic Area EEA Do not use any machines without a CE marking in the EEA Use in hazar...

Страница 22: ...brid mixture Motors with dual plates for G Gas and D Dust may only be used where these two occur after prior examination of the properties of the hybrid mixtures by the user Type of protection Ex db The machine including the terminal box has type of protection flameproof enclosure Ex db in accordance with IEC EN 60079 0 and IEC EN 60079 1 and is designed for operation in Zone 1 or Zone 2 in accord...

Страница 23: ...wer kW 6 Customer data optional 37 Rated current A 7 Country of origin 38 Power factor cosφ 8 Production location 39 Rated speed rpm 9 Identification number of testing agency optional 40 Efficiency class 10 Regulations optional 41 Efficiency 49 Company logo 42 Torque Nm optional 52 Marine regulation 46 Operating mode optional 53 Machine family type 48 Anti condensation heating optional 54 Data for...

Страница 24: ...e general regulations Feature Standard EAC Dimensioning and operating behavior EN IEC 60034 1 GOST R IEC 60034 1 Procedure for determining the losses and the efficiency of rotating electrical machines and inspections EN IEC 60034 2 1 EN IEC 60034 2 2 EN IEC 60034 2 3 GOST R IEC 60034 2 1 GOST R IEC 60034 2 2 GOST RIEC 60034 2 3 Degree of protection EN IEC 60034 5 GOST R IEC 60034 5 ...

Страница 25: ...Device protection provided by flameproof enclosure d EN IEC 60079 1 GOST 30852 1 2002 Electrical equipment for hazardous gas atmospheres Part 7 Increased safety e EN IEC 60079 7 GOST 30852 8 2002 Electrical equipment for hazardous gas atmospheres Part 14 Electric installations for endangered atmospheres ex cept underground excavation EN IEC 60079 14 GOST 30852 13 2002 Electrical equipment for haza...

Страница 26: ...ndependent of the motor operating state forced ventilation This unit is closed to the outside by a fan cover It has its own main drive with fan impeller which creates the cooling air flow required for cooling the motor 3 3 2 Bearings In order to support the machine shaft and maintain its position in the non moving part of the machine only 2 rolling bearings are used One rolling bearing performs th...

Страница 27: ...ating plate See also Balancing Page 55 3 3 4 Types of construction method of installation The type of construction of the machine is stated on the rating plate Table 3 3 Type of construction Basic type of construc tion code Diagram Other methods of in stallation Diagram IM B3 IM 1001 IM V5 IM 1011 IM V6 IM 1031 IM B6 IM 1051 IM B7 IM 1061 IM B8 IM 1071 Basic type of construc tion code Diagram Othe...

Страница 28: ...or explosion proof machines The type of construction of the machine is stated on the rating plate In the case of explosion proof machines where the shaft extensions point downwards types of construction IM V5 IM V1 or IM V18 a protective top cover is mandatory Explosion proof machines with IM V5 IM V1 and IM V18 types of construction are fitted with a canopy at the factory Table 3 4 Construction t...

Страница 29: ...y for ambient temperature Tamb 40 C Max 55 Ambient temperature 20 C to 40 C Installation altitude 1000 m Air with normal oxygen content usually 21 V V The standard machines are not suitable for use in corrosive atmospheres atmospheres with a high salt content or outdoor applications Limit values for the special versions If the environmental conditions are different from the details listed here the...

Страница 30: ...perature sensor that is built into the stator winding for this as specified on the rating plate or extra rating plate 3 3 8 Identification 3 3 8 1 Zone 1 with Ex db IIC Gb type of protection flameproof enclosure d for the machine 0158 II 2 G Ex db IIC T4 Gb CE or EAC marking Identification number or name of nominated testing agency Code for prevention of explosions Device group II not for mines su...

Страница 31: ...inal box for high protection level Explosion group IIC for acetylene Temperature class T4 for maximum surface temperature of 135 C Device protection level Gb for a high level of protection in hazardous zones with explo sive gas mixtures 3 3 8 3 Zone 21 with type of protection Ex tb IIIC Db equipment dust explosion protection provided by the enclosure t 0158 II 2 D Ex tb IIIC T125 C Db CE or EAC ma...

Страница 32: ...ction level Dc for an extended protection level in flammable dust atmos pheres 3 3 9 Terminal box As an option additional connecting terminals are available in the terminal box for monitoring equipment For larger machines an additional terminal box can be optionally mounted You can see the number of available terminals in the circuit diagrams 3 3 10 Paint finish Paint finish The machine is painted...

Страница 33: ...ine These are described in the chapter titled Safety information Page 11 and in related sections Take appropriate safety precautions covers barriers markings etc to ensure the machine is operated safely within your plant 4 2 Observing the operating mode Observe the machine s operating mode Use a suitable control system to prevent overspeeds thus protecting the machine from damage 4 3 Machines with...

Страница 34: ...e attached on or near the machine or installation 4 5 Transport and storage Observe the following when carrying out any work on the machine Comply with the general safety instructions Page 11 Comply with the applicable national and sector specific regulations When using the machine within the European Union comply with the specifications laid down in EN 50110 1 regarding safe operation of electric...

Страница 35: ...ear or load handling attachments were to fail the machine could fall This can result in death serious injury or material damage In order to gain easy and safe access to the underside of the machine place it in a secure and raised position Note When lifting the machines for transport only lift them in a position that corresponds to their basic construction type The type of construction of the machi...

Страница 36: ...irculate freely around the equipment Storing indoors The storage rooms must provide protection against extreme weather conditions They must be dry free from dust frost and vibration and well ventilated Bare metal surfaces For transport the bare surfaces shaft ends flange surfaces centering edges should be coated with an anti corrosion agent which will last for a limited amount of time 6 months App...

Страница 37: ...s reduce the useful life of the bearing grease aging Open bearings For open bearings e g 1Z check the status of the grease when stored for longer than 12 months Replace the grease if it is identified that the grease has lost its lubricating properties or is polluted The consistency of the grease will change if condensation is allowed to enter Closed bearings For closed bearings replace the DE and ...

Страница 38: ...must be attached during the transport Protect the motor against strong radial shocks and vibration when storing as the rotor shipping brace cannot completely absorb these forces Do not remove the rotor shipping brace until you are ready to push on the output element If the customer already has mounted parts such as a coupling or belt pulley the bearings can be damaged during transport In this case...

Страница 39: ...haft extension Tightening torque M16 40 Nm M20 80 Nm M24 150 Nm M30 230 Nm Tightening torques for other rotor shipping brace types The thread in the shaft extension indicates the rotor weight This indirectly specifies the required preload force when axially fastening the rotor Thread in the shaft extension Preload M16 13 kN M20 20 kN M24 30 kN M30 40 kN Axial preload force for other rotor shipping...

Страница 40: ...e cleaned or dried Detailed information on testing and the limit values can be found here Testing the insulation resistance and polarization index Page 51 4 5 3 2 Lubricating the rolling bearings If you correctly store the machine for a longer period of time it can be assumed that within a period of two years the grease in the bearings will not deteriorate For motors with thermal class 155 for nor...

Страница 41: ...ir entry openings standard IEC EN 60079 0 If the shaft extension is facing upwards liquid must be prevented from entering by moving along the shaft WARNING Damage caused by small parts falling in Material damage and injury can occur if the fan is destroyed and therefore the motor overheats For types of construction with the shaft extension facing downwards prevent small parts from falling into the...

Страница 42: ... Ensure adequate cooling 1MB155 1MB555 40 Operating Instructions 03 2018 A5E41926185A Table 4 1 Air guidance Incorrect Correct Minimum dimension x for the distance between neighboring modules and the air intake of the ma chine ...

Страница 43: ...e without a circuit breaker Evaluate the temperature sensors Direct temperature monitoring for inverter operation Evaluate the temperature sensors If you have to perform a continuity test of the temperature sensors do not apply a voltage 2 5 V If no test data is specified on the rating plate this means that the winding protection is only intended as an additional protection For pole changing machi...

Страница 44: ... high winding temperatures and therefore long term damage to the machine can result Keep within the permissible tolerance for voltage and frequency Every machine must be protected against an inadmissible temperature rise Observe the following notes Protect every machine according to IEC EN 60079 14 using a current dependent delayed circuit breaker with phase failure protection according to IEC EN ...

Страница 45: ... damage to the machine This can result in death serious injury or material damage Avoid operation above the permissible speed by using the appropriate control function Observe the speeds stamped on the rating plate and in the Electrical Data 4 12 System inherent frequencies Excessively high vibration levels and system resonances can damage the machine set Configure and match the system consisting ...

Страница 46: ...g PTC thermistors disturbance voltages caused by the converter may occur on the sensor cable When used in accordance with their intended purpose and operated on an electrical supply system with characteristics according to EN 50160 the enclosed machines comply with the requirements of the EC Directive concerning electromagnetic compatibility Immunity to interference The machines fulfill the requir...

Страница 47: ...nes significantly exceeds the requirements of stress category C IVIC C high stress If voltage peaks higher than those specified according to IVIC C can occur then observe the data in the respective Catalog http w3app siemens com mcms infocenter content en Pages order_form aspx For a line voltage converter input voltage up to max 480 V and operation connected to a SINAMICS G SINAMICS S converter wi...

Страница 48: ...ld is connected at both ends at the motor and converter To ensure good discharging of high frequency currents provide contacting over a large surface area as contact established through 360 at the converter at the motor for instance with EMC glands at the cable entries If the cable shield is connected as described then it ensures the specified equipotential bonding between the motor enclosure and ...

Страница 49: ...perating instructions for the converter are not part of this documentation Refer to the configuration information for the converter 4 14 4 Insulated bearings when operated with a converter If the machine is operated from a low voltage converter insulated bearings are fitted at the NDE and an insulated encoder with insulated bearings option Comply with the plates on the machine relating to bearing ...

Страница 50: ...ge Bearing currents can flow if the coupling between the motors of the tandem drive is not insulated This can damage the DE bearings of both motors Use an insulated coupling to link the motors 4 14 5 Tandem operation If you connect two motors in series in tandem operation locate a coupling between the motors this coupling should satisfy the Directive 2014 34 EU or the regulations that apply in the...

Страница 51: ...e machine Substantial modifications to the machine are not permitted or may only be performed by the manufacturer Otherwise an explosion can occur in an explosive atmosphere This can result in death serious injury or material damage If necessary please contact the service center 5 1 Preparations for installation 5 1 1 Requirements for installation The following requirements must be satisfied prior...

Страница 52: ...ntries must be suitable for the particular application 5 1 2 Insulation resistance 5 1 2 1 Insulation resistance and polarization index Measuring the insulation resistance and polarization index PI provides information on the condition of the machine It is therefore important to check the insulation resistance and the polarization index at the following times Before starting up a machine for the f...

Страница 53: ...to a non hazardous level Attach the connection cable Measure the insulation resistance 1 Before you begin measuring the insulation resistance please read the operating manual for the insulation resistance meter you are going to use 2 Short circuit the ends of the temperature sensor cables before applying the test voltage If the test voltage is connected to only one temperature sensor terminal the ...

Страница 54: ... 2 KT 0 5 40 T 10 40 Reference temperature in C 10 Halving doubling of the insulation resistance with 10 K T Measuring winding temperature in C In this case doubling or halving the insulation resistance at a temperature change of 10 K is used as the basis The insulation resistance halves every time the temperature rises by 10 K The resistance doubles every time the temperature falls by 10 K For a ...

Страница 55: ... is no longer meaningful and consequently not included in the assessment R 10 min R 1 min Assessment 2 Insulation in good condition 2 Dependent on the complete diagnosis of the insulation NOTICE Damage to insulation If the critical insulation resistance is reached or undershot this can damage the insulation and cause voltage flashovers Contact the service center Page 141 If the measured value is c...

Страница 56: ... the motor Clean bare metal surfaces with anti corrosion agent using white spirit to ensure proper installation and or machine mounting Do not obstruct the ventilation Do not draw in the discharged air directly also from adjacent equipment Avoid exposing them to direct intense solar radiation rain snow ice or also dust for extended periods Attach a covering structure or an additional cover when us...

Страница 57: ... or pulled off with the correct equipment The feather keys are only locked against falling out during shipping If you commission a machine without a drive output element the feather keys must be secured to prevent them from being thrown out The featherkey data on the shaft and transmission element must indicate the correct type of balancing in each case and must be correctly mounted The balancing ...

Страница 58: ...pply any blows for example with a hammer or similar tool to the parts to be mounted or withdrawn Only transfer radial or axial forces specified in the catalog to the motor bearings via the shaft extension 5 3 Alignment and fastening Observe the following when aligning and mounting Ensure a flat and uniform contact surface for foot and flange mounting When mounting on the wall support the machine f...

Страница 59: ...ng For vertical mounting positions avoid deforming the machines by placing shims under the mounting feet Keep the number of shims low only use a few stacked shims Horizontal positioning To position the machine horizontally shift it sideways on the foundation and ensure that the axial position is maintained angularity error When positioning the motor ensure that a uniform axial gap is maintained ar...

Страница 60: ...ns and materials for fixing elements Select the correct screw length for IM B14 flanges Ensure that the screw heads are in full contact with the flange surface Use additional flat washers ISO 7093 especially for elongated foot mounting holes 5 3 3 Flatness of the supporting surfaces for conventional motors Frame size Flatness mm 132 0 10 160 0 15 180 0 20 5 4 Installing the machine 5 4 1 Precondit...

Страница 61: ...center lines of the shafts are parallel with no offset This ensures that no additional forces affect their bearings during operation 3 For the vertical positioning x 0 place thin shims under the machine feet The number of shims should be kept as low as possible i e stack as few as possible This also prevents the machine being subjected to any stress distortion If available use the existing tapped ...

Страница 62: ...ded with a centering The choice of fit for the mating flange on the driven machine is the system manufacturer s or the plant operator s responsibility If the machine is not fitted with a standard flange align the machine to suit the driven machine Procedure The machine axis must be vertical when it is lifted and the flange must be parallel to the mating flange so as to avoid seizing and stressing ...

Страница 63: ...e coupling manufacturer in all cases when aligning the machine Table 5 2 Recommended alignment accuracy Speed rpm Parallel offset mm Angular offset mm per 100 mm coupling diameter 750 0 09 0 09 1500 0 06 0 05 3000 0 03 0 025 To avoid stressing the motor feet the overall flatness of the installation surfaces must satisfy the values in the following table Table 5 3 Overall flatness of the installati...

Страница 64: ...urer s instructions Make sure that the balancing type of the transmission element correctly matches the type of balance of the rotor Use only ready drilled and balanced transmission elements Check the hole diameters and the balancing status before pulling them on Thoroughly clean the shaft extension Pulling on Warm up the transmission elements to expand them before pulling them on Select the tempe...

Страница 65: ...ate at the 10th position of the motor type There four pole machines are marked with a B WARNING The feather key can fall out The feather keys are only locked against falling out during shipping If a machine with two shaft extensions does not have an output element on one shaft extension the feather key can fall out during operation Death or serious injury can result Do not operate the machine unle...

Страница 66: ...Assembly 5 4 Installing the machine 1MB155 1MB555 64 Operating Instructions 03 2018 A5E41926185A ...

Страница 67: ...n work loosely so that the minimum air clearances are no longer maintained Sparking formation may occur in an explosive atmosphere it can lead to an explosion This could result in death serious injury or material damage to the machine or even in failure which could in turn lead indirectly to material failure of the system Tighten the screwed connections to the specified tightening torques Observe ...

Страница 68: ... the machine on a line supply system with a non grounded neutral point is only permitted over short time intervals that occur rarely e g the time leading to a fault being eliminated ground fault of a cable EN 60034 1 6 2 1 Terminal box DANGER Hazardous voltage Electric motors have high voltages When incorrectly handled this can result in death or severe injury Switch off the machine so that it is ...

Страница 69: ... cases in which it is obligatory to connect parallel power feed cables to several terminals with otherwise identical markings 6 2 1 2 Circuit diagram inside the terminal box cover Data on the connection and connecting the machine winding can be found in the circuit diagram in the cover of the terminal box 6 2 1 3 Direction of rotation The standard motors are suitable for clockwise and counter cloc...

Страница 70: ...lled holes Through holes The nominal diameter of the through holes for the entry may not be 0 7 mm larger than the nominal diameter of the thread of the cable entry or connection element The inside of the terminal box must have sufficient space to attach a locking nut at the cable entry or at the connection element Openings with thread must have the following attributes Conical thread Without addi...

Страница 71: ...tection is specified on the rating plate 6 2 1 6 Thread sizes in terminal box Ex e and Ex d Frame size Threaded entry Size Quantity 71 90 M 16 x 1 5 M 25 x 1 5 1 100 132 M 32x1 5 2 160 180 M 40x1 5 2 200 225 M 50x1 5 2 250 315 M63x1 5 2 355 M 80x2 2 Thread size for additional entries e g PTC thermistor or heater M16x1 5 or M20x1 5 Other thread sizes are possible as an option 6 2 2 Minimum air clea...

Страница 72: ... 1 Terminal board and grounding Table 6 3 Tightening torques for electrical connections on the terminal board and grounding Thread M 3 5 M 4 M 5 M 6 M 8 M 10 M 12 M 16 Nm min 0 8 0 8 1 8 2 7 5 5 9 14 27 Max 1 2 1 2 2 5 4 8 13 20 40 6 3 2 Stud type bushings Table 6 4 Tightening torques for stud type bushings Thread M 4 M 5 M 6 M 8 M 10 M 12 M 16 M 20 Nm Min 1 1 6 2 5 5 8 13 25 42 Max 1 2 2 3 6 10 1...

Страница 73: ...le entries and sealing plugs for direct mounting to the machine as well as further glands e g adapters Ex d Table 6 6 Tightening torques of the sealing plugs Thread size Tightening torque Nm Min Max M 16x1 5 5 6 M 20x1 5 8 10 M 25x1 5 11 13 M 32x1 5 16 19 M 40x1 5 18 22 M 50x1 5 30 35 M 63x1 5 30 35 M 80x2 0 58 63 6 4 Connecting the grounding conductor The machine s grounding conductor cross secti...

Страница 74: ...al area of grounding conductor Minimum cross section of the phase conductor for installation S mm Minimum cross section of the associated ground ing connection mm S 25 S 25 S 50 25 S 50 0 5 S 6 4 1 Grounding connection type Frame size Enclosure grounding method 71 112 Cable connection with free cable Cable connection with cable lug DIN 46234 JB T2436 1 ...

Страница 75: ...the connecting surface is bare and is protected against corrosion using a suitable substance e g acid free Vaseline Arrange the flat washer and spring washer under the bolt head Locate the cable lug under the clamping bracket Use the terminals designated for the grounding conductor in the terminal box Observe the tightening torque for the locking screw External ground terminal When making connecti...

Страница 76: ...additional threaded hole on the grounding socket is optionally available for additional equipotential bonding of high frequency voltages and currents in converter operation See also Tightening torques for screw and bolt connections Page 143 6 5 Connecting the temperature sensor anti condensation heater 6 5 1 Connecting optional integrated devices and equipment In addition to the current dependent ...

Страница 77: ...n the size of the terminal possibly reduced due to size of cable entries Type of connection Terminal studs Cable cross section mm Connection with cable lug DIN 46234 M 4 1 4 1 6 FS 132 M5 1 16 M6 4 35 Connection of a single conductor M 4 1 4 1 6 FS 132 M5 1 16 M6 4 35 Connection of two conductors of the same thickness with terminal clamp M 4 Not permitted M5 Not permitted M6 4 35 ...

Страница 78: ...erminal studs Cable position with terminal Cable cross section mm M 8 2 5 25 16 50 10 16 M 10 10 95 M 12 25 185 M 16 50 300 M 10 50 120 M 12 95 240 M 16 120 300 M 10 16 35 M 12 16 70 M 16 16 120 M 20 25 300 Assembly of clamping device M8 Mount the clamping devices on the terminal board at a distance of 0 1 1 mm to the lock nuts ...

Страница 79: ...ctors If you are using aluminum conductors then comply with the following Use only cable lugs that are suitable for connecting aluminum conductors Immediately before inserting the aluminum conductor remove the oxide layer from the contact areas on the conductor and or the mating piece Do this using a brush or file Then grease the contact areas immediately using neutral Vaseline This prevents a new...

Страница 80: ...e rise time tr Ûphase to phase Vpk Ûphase to ground Vpk Rise time tr μs DC link UDC V 500 V 1500 1100 0 5 750 900 900 0 1 6 7 1 Connecting explosion proof machines to the converter WARNING Machine overheating Operating explosion protected machines at the converter without using the appropriate protective equipment can result in death or severe injury Always use PTC thermistor monitoring when opera...

Страница 81: ...closure check the following Establish the electrical connections in the terminal box in accordance with the details in the sections above and tighten with the correct torque Maintain the air clearances between non insulated parts as described in Chapter Minimum air clearances Page 69 Avoid protruding wire ends In order not to damage the cable insulation freely arrange the connecting cables Connect...

Страница 82: ...Electrical connection 6 8 Final checks 1MB155 1MB555 80 Operating Instructions 03 2018 A5E41926185A ...

Страница 83: ... Checks to be carried out prior to commissioning The following list of checks to be performed prior to commissioning does not claim to be complete It may be necessary to perform further checks and tests in accordance with the specific situation on site The machine is undamaged The machine has been correctly installed and aligned the transmission elements are correctly balanced and adjusted All fix...

Страница 84: ...ctional Electrical connection The grounding and equipotential bonding connections have been made correctly The machine is connected so that it rotates in the direction specified Appropriately configured control and speed monitoring functions ensure that the motor cannot exceed the permissible speeds specified in the technical data For this purpose compare the data on the rating plate or if necessa...

Страница 85: ... of the machine It is therefore important to check the insulation resistance and the polarization index at the following times Before starting up a machine for the first time After an extended period in storage or downtime Within the scope of maintenance work The following information is provided regarding the state of the winding insulation Is the winding head insulation conductively contaminated...

Страница 86: ...o a non hazardous level Attach the connection cable Measure the insulation resistance 1 Before you begin measuring the insulation resistance please read the operating manual for the insulation resistance meter you are going to use 2 Short circuit the ends of the temperature sensor cables before applying the test voltage If the test voltage is connected to only one temperature sensor terminal the t...

Страница 87: ... 2 KT 0 5 40 T 10 40 Reference temperature in C 10 Halving doubling of the insulation resistance with 10 K T Measuring winding temperature in C In this case doubling or halving the insulation resistance at a temperature change of 10 K is used as the basis The insulation resistance halves every time the temperature rises by 10 K The resistance doubles every time the temperature falls by 10 K For a ...

Страница 88: ...in the assessment R 10 min R 1 min Assessment 2 Insulation in good condition 2 Dependent on the complete diagnosis of the insulation NOTICE Damage to insulation If the critical insulation resistance is reached or undershot this can damage the insulation and cause voltage flashovers Contact the service center Page 141 If the measured value is close to the critical value you must subsequently check ...

Страница 89: ...rst test run carry out the following checks The external fan is correctly fitted and aligned The rotor runs freely All of the retaining elements and electrical connections are securely tightened The grounding and equipotential bonding connections to the mains have been correctly made The air flow is not impeded or shut off by flaps covers or similar All protection measures have been taken to preve...

Страница 90: ...es before commissioning Set value Temperature Alarm 115 C Shutting down 120 C Normal operation Determine the maximum operating temperature of the bearings Toperation taking into account the temperature bearing load and influences of the plant on the motor in C Set the values for shutdown and warning corresponding to the operating temperature Top Table 7 3 Set values for monitoring the bearing temp...

Страница 91: ...oes not improve immediately after switching the machine off then the cause is mechanical e g an imbalance in the electrical machines or in the driven machine inadequate alignment of the machine set operation of the machine with the system resonating system machine base frame foundations etc If the machine runs perfectly in terms of its mechanical operation switch on any cooling devices present and...

Страница 92: ... load on cylindrical roller bearings of 50 corresponding to what is specified in the catalog 2 If the machine is running smoothly and evenly switch on the cooling equipment Continue to observe the machine for a while in no load operation 3 If it runs perfectly connect a load NOTICE Thermal overload of motors connected directly to the line supply In addition to the load torque the ramp up accelerat...

Страница 93: ...normal noise switch off the machine As the machine runs down identify the cause If the mechanical operation improves immediately after the machine is switched off then the cause is magnetic or electrical If the mechanical running does not improve immediately after switching the machine off then the cause is mechanical Imbalance of the electrical machine or the driven machine The machine set has no...

Страница 94: ...Start up 7 2 Switching on 1MB155 1MB555 92 Operating Instructions 03 2018 A5E41926185A ...

Страница 95: ...y 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 El...

Страница 96: ...severe 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 Read the information in these operating instructions and the product informat...

Страница 97: ...mage to the machine or its destruction In operation observe the vibration values in accordance with ISO 10816 Under all circumstances maintain the minimum radial load of cylindrical roller bearings of 50 corresponding to what is specified in the catalog Take the appropriate measures to reduce bearing currents Observe the Chapter Converter operation WARNING Faults in operation Changes with respect ...

Страница 98: ...in the minimum ignition energy and a reduction in the maximum temperatures to be observed An explosion can result This can result in death serious injury or material damage For this reason the relative characteristics must be considered both for gas zones 0 1 and 2 and for dust zones 20 21 and 22 where hybrid mixtures arise It is necessary for a competent assessor to determine in the individual ca...

Страница 99: ...leaning with compressed air If you clean the machine with compressed air plastic components may become statically charged and ignite a potentially explosive atmosphere an explosion can occur This can result in death serious injury or material damage Do not use compressed air to clean motors when installed in hazardous zones 8 1 3 Safety note for ventilation CAUTION Risk of injury when touching the...

Страница 100: ...ation during operation 8 1 5 Switching on with the anti condensation heating active Excessively high machine temperature when heating is switched on If the anti condensation heating is operated while the machine is running this can increase the temperatures inside the machine Material damage can result Make sure that the anti condensation heating is switched off before the machine is switched on O...

Страница 101: ...ith the limit values and or ramp up conditions specified in the catalog or the order documentation 3 If this is possible using the available measuring equipment check the bearing and stator winding temperatures 8 3 Switching off the external fan Do not immediately switch off the separately driven external fan after switching off the machine First wait for the machine to cool down This will prevent...

Страница 102: ...vice for a period of more than 12 months then environmental effects can damage the motor Apply suitable corrosion protection preservation packing and drying measures Switching on the anti condensation heater Switch on any anti condensation heating while the machine is not being operated Taking the machine out of service Details regarding the necessary measures Chapter Preparations for use Page 31 ...

Страница 103: ...damage such as brinelling or corrosion During stoppages regularly start up the machine for a brief period once a month As a minimum turn the rotor several times If you have uncoupled the machine from the driven machine and secured the rotor with a rotor shipping brace then remove this before turning the rotor over or starting up the machine Make sure that the resting position of the rotor after th...

Страница 104: ...he machine Page 101 Start up Page 81 8 6 faults 8 6 1 Inspections in the event of faults Natural disasters or unusual operating conditions such as overloading or short circuit are faults that overload the machine electrically or mechanically Immediately perform an inspection after such faults Correct the cause of the fault as described in the respective remedial measures section Repair any damage ...

Страница 105: ...ase in the supply cable Check the switches and cables X X X X Interrupted phase in the feeder cable after switching on Check the switches and cables X Mains voltage too low frequency too high Check the power supply conditions X Mains voltage too high frequency too low Check the power supply conditions X X X X X Stator winding incorrectly connected Check the winding connection in the terminal box X...

Страница 106: ... from being thrown out If the rotor has balance type H standard type the fitted key must be cut back to roughly half of its length X Rotor out of true shaft bent Consult the manufacturing plant X X Poor alignment Align the machine set check the coupling 1 X Coupled machine not balanced Rebalance the coupled machine X Shocks from coupled machine Investigate the coupled machine X X Uneven running of...

Страница 107: ...X Bearing canted Contact the service center X X Insufficient bearing play Contact the service center X Excessive bearing play Contact the service center X X Bearing corroded Replace the bearing Check the seals X Too much grease in bearing Remove surplus grease X Wrong grease in the bearing Use the correct grease X Friction marks on raceway Replace the bearing X Brinelling or scoring Replace the be...

Страница 108: ...Operation 8 6 faults 1MB155 1MB555 106 Operating Instructions 03 2018 A5E41926185A ...

Страница 109: ...ine within the European Union comply with the specifications laid down in EN 50110 1 regarding safe operation of electrical equipment Comply with the IEC EN 60079 17 standard during all service and maintenance work on the machine Note Please contact the service center Page 141 if you require support with service maintenance or repair 9 1 Inspection and maintenance 9 1 1 Safety instructions for ins...

Страница 110: ...ressed air this can damage the insulation Clearance and creepage distances can be undershot This may cause damage to the machine extending to total failure When cleaning with compressed air ensure there is adequate extraction NOTICE Machine damage caused by foreign bodies Foreign bodies such as dirt tools or loose components such as screws etc can be left by accident inside the machine after maint...

Страница 111: ... to overheating of the machine caused by a layer of dust Layers of dust thicker than 5mm can insulate the machine resulting in overheating The maximum surface temperature of the machine cannot be adhered to The dust can ignite resulting in an explosion This can result in death serious injury or material damage Dust the machine regularly Do not allow dust layers thicker than 5 mm to build up on the...

Страница 112: ...uch as overloading or short circuit are faults that overload the machine electrically or mechanically Immediately perform an inspection after such faults 9 1 4 First inspection Check after approx 500 operating hours but after not more than one year Check When the motor is running At stand still The electrical parameters are maintained X The permissible bearing temperatures are not exceeded X The s...

Страница 113: ...the potential connections grounding connections and shield supports are correctly seated and properly bonded X The winding insulation resistances are sufficiently high X Any bearing insulation is fitted as shown on the plates and labels X The CABLES and insulating parts and components are in good condition and there is no evidence of discoloring X You can perform these checks while the motor is at...

Страница 114: ...nce with IEC EN 60079 17 Comply with the following intervals Bearing replacement intervals Relubrication intervals Grease replacement intervals Oil change intervals Rolling bearing service life Replace the rolling bearings once the nominal service life is reached Alternatively you can verify they are free of mechanical damage as part of an inspection In the case of rolling bearings without a regre...

Страница 115: ...hat guarantee that flame is not transmitted 9 1 9 2 Explosion hazard due to increased surface temperature WARNING Explosion hazard due to increased surface temperature Components within the motor may be hotter than the maximum permissible surface temperature for the enclosure In an explosive atmosphere dust can ignite and an explosion occur This can result in death serious injury or material damag...

Страница 116: ...he machine s lubricant plate Regardless of the actual number of operating hours reached regrease the motor at least once a year The lubrication information can be found on the lubricant plate Note Observe the regreasing intervals for the rolling bearings The regreasing intervals for rolling bearings are different from the service inspection intervals for the machine Failure to regrease the rolling...

Страница 117: ...n a vertical position Grease types For the standard operating range a grease for temperatures down to 20 C is normally used for the initial greasing of rolling bearings If the machine has been ordered for use in the extended temperature range of below 20 C the permissible type of grease is indicated on the lubricant plate Note Grease quantity control The grease quantity control only operates corre...

Страница 118: ...o not comply with the standardized values in IEC EN 60079 1 For repair work obtain the gap dimensions of the electrical machine from the manufacturer Perform maintenance repair and modification work on explosion protected machines in strict compliance with the corresponding national health and safety legislation the safety instructions and descriptions in the general maintenance instructions Work ...

Страница 119: ...fore performing any maintenance work on the external fan disconnect it from the mains particularly before opening the terminal box Make sure that the device cannot be switched back on Servicing the external fan The external fan is essentially maintenance free However dirt and dust deposits on the impeller and the motor particularly in the gap between the impeller and the inlet nozzle can impair it...

Страница 120: ...ctions If dust or humidity have infiltrated the terminal box this should be cleaned and dried particularly the insulators Check all the seals and sealing surfaces and address the cause of the leakiness Check the insulators connectors and cable connections in the terminal box Line entries inside the terminal box are part of the regular inspection in accordance with IEC EN 60079 17 Replace the damag...

Страница 121: ... for non standard or customized paint systems Take into consideration that the provided evidence is not valid for repaintings 9 2 Corrective Maintenance Observe the following when carrying out any work on the machine Comply with the general safety instructions Page 11 Comply with the applicable national and sector specific regulations When using the machine within the European Union comply with th...

Страница 122: ...ue to alteration of the ignition gap geometry Changing ignition gap geometries gap dimensions as part of repair work according to the minimum specifications of IEC EN 60079 1 is not permissible This can result in death serious injury or material damage Obtain the gap dimensions of the electrical machine from the manufacturer for the repair or restoration of ignition gap geometries 9 2 2 Anti conde...

Страница 123: ...n explosions during operation in a potentially explosive gaseous atmosphere This can result in death serious injury or material damage Repairing and mounting the anti condensation heating and the subsequent routine testing must always be undertaken by experts from the service center Page 141 because this work requires extensive specialist knowledge Only authorized and tested spare parts may be use...

Страница 124: ... the rotor when installing the bearing housing or bearing end shield 11 Use a suitable sealant when assembling 12 Assemble the bearing shield or bearing housing together with the bearing shield 13 Install the outer bearing cover if one is being used 14 Install the sealing elements WARNING Rotor can fall out If the motor is in a vertical position the rotor can fall out while work is being performed...

Страница 125: ...5 Insulated roller bearings If insulated rolling bearings are fitted use insulated rolling bearings of the same type as spare parts This will prevent any bearing damage being caused by bearing currents 9 2 6 O ring seal If O ring seals are present you should check that they are in perfect condition and that the O ring seals are properly seated in the grooves between the components Replace damaged ...

Страница 126: ...Maintenance 9 2 Corrective Maintenance 1MB155 1MB555 124 Operating Instructions 03 2018 A5E41926185A ...

Страница 127: ...siemens com lang en 10 2 Ordering data Note The graphical representations in this chapter show schematic diagrams of the basic versions They are used for spare parts definitions The supplied version may differ in details from these representations WARNING Explosion hazard due to unsuitable spare parts If you use parts other than the original spare parts the type of protection can no longer be guar...

Страница 128: ...ing operation in a potentially explosive gaseous atmosphere This can result in death serious injury or material damage Repairing and mounting the anti condensation heating and the subsequent routine testing must always be undertaken by experts from the service center Page 141 because this work requires extensive specialist knowledge Only authorized and tested spare parts may be used 10 6 Parts gro...

Страница 129: ...rs after the delivery of the original machine in the event of total machine failure Siemens will supply a comparable replacement machine with regard to the mounting dimensions and functions it is possible that this will involve a new series If a replacement machine is supplied within the 3 year period this does not mean that the warranty restarts Replacement machines delivered after the active pro...

Страница 130: ...rsions They are used for spare part definitions The supplied version may differ in details from these representations 10 8 Machine parts Part Description Part Description 1 00 DE bearings 5 52 Cable entry 1 30 Bolt 5 53 Sealing plug 1 31 Spring washer 5 55 Nut 1 34 Spring washer 5 63 Mounting rail 1 40 End shield 5 65 Bolt 1 43 Shaft sealing ring 5 70 Terminal clamp 1 44 Bearing cover 5 76 Clampin...

Страница 131: ...rminal block 7 40 Fan cover 5 12 Slotted screw 7 42 Sealing plug 5 13 Link rail 7 48 Spring washer 5 14 Gland plate 7 49 Bolt 5 16 Spring washer 8 00 Auxiliary terminal box 5 17 Bolt 8 01 Bolt 5 20 Cable gland 8 02 Auxiliary terminal box cover 5 22 Stud type bushings 8 03 Seal 5 25 Spring washer 8 04 Cheek 5 26 Nut 8 05 Terminal block 5 27 Clamp 8 06 Bolt 5 29 Lower saddle terminal 8 07 End angle ...

Страница 132: ...ace properties through normal commercial channels No Standard Picture No Standard Picture 3 02 6 02 7 12 DIN 471 4 39 5 65 5 79 5 89 8 01 8 10 EN ISO 4017 1 59 DIN 472 5 26 5 55 EN ISO 4032 4 04 DIN 580 1 30 1 49 4 11 5 17 5 47 5 49 6 29 6 45 7 49 EN ISO 4762 1 60 6 10 DIN 625 3 38 DIN 6885 5 94 EN ISO 7045 5 12 8 06 8 08 EN ISO 1207 4 05 5 36 7 48 EN ISO 7089 4 13 EN ISO 8746 4 15 DIN EN ISO 8752...

Страница 133: ...Spare Parts 10 10 Exploded drawings 1MB155 1MB555 Operating Instructions 03 2018 A5E41926185A 131 10 10 Exploded drawings 10 10 1 Frame sizes 71 132 ...

Страница 134: ...Spare Parts 10 10 Exploded drawings 1MB155 1MB555 132 Operating Instructions 03 2018 A5E41926185A 10 10 2 Frame sizes 160 225 ...

Страница 135: ...Spare Parts 10 10 Exploded drawings 1MB155 1MB555 Operating Instructions 03 2018 A5E41926185A 133 10 10 3 Frame sizes 250 355 ...

Страница 136: ...Spare Parts 10 10 Exploded drawings 1MB155 1MB555 134 Operating Instructions 03 2018 A5E41926185A 10 10 4 Ex e terminal box frame sizes 71 225 ...

Страница 137: ...Spare Parts 10 10 Exploded drawings 1MB155 1MB555 Operating Instructions 03 2018 A5E41926185A 135 10 10 5 Ex e terminal box frame sizes 250 355 ...

Страница 138: ...Spare Parts 10 10 Exploded drawings 1MB155 1MB555 136 Operating Instructions 03 2018 A5E41926185A 10 10 6 Auxiliary terminal box Ex e optional frame size 160 355 ...

Страница 139: ...e environment by those that are not based on state of the art technology In doing so safety in operation and handling will take priority at all times Country specific legislation When disposing of the machine or of waste that is created during the individual phases of its life cycle please observe the statutory requirements applicable in the country of use 11 2 Preparing for disassembly Disassembl...

Страница 140: ...sposal of components Components The machines consist mainly of steel and various proportions of copper and aluminum Metals are generally considered to be unlimitedly recyclable Sort the components for recycling according to whether they are Iron and steel Aluminum Non ferrous metal e g windings The winding insulation is incinerated during copper recycling Insulating materials Cables and wires Elec...

Страница 141: ...plies for cloths and cleaning substances which have been used while working on the machine Packaging material If necessary contact a suitable specialist disposal company Wooden packaging for sea transport consists of impregnated wood Observe the local regulations The foil used for water proof packaging is an aluminum composite foil It can be recycled thermally Dirty foil must be disposed of via wa...

Страница 142: ...Disposal 11 4 Disposal of components 1MB155 1MB555 140 Operating Instructions 03 2018 A5E41926185A ...

Страница 143: ...umber You can find this data on the rating plate Contact person If you wish to request on site service or order spare parts please contact your local office This office will contact the responsible service center on your behalf You can find your contact person in the relevant contact da tabase www siemens com yourcontact www siemens com yourcontact Siemens Support for on the move You can obtain op...

Страница 144: ...Service and Support 1MB155 1MB555 142 Operating Instructions 03 2018 A5E41926185A ...

Страница 145: ... bolt and the point at which the bolt is screwed in Tightening torques The bolted connections with metal contact surfaces such as end shields bearing cartridge parts terminal box parts bolted onto the stator frame should be tightened to the following torques depending on the thread size Table B 1 Tightening torques for bolted connections with a tolerance of 10 Thread M5 M6 M8 M10 M12 M16 M20 Nm 5 ...

Страница 146: ...Technical data B 1 Tightening torques for screw and bolt connections 1MB155 1MB555 144 Operating Instructions 03 2018 A5E41926185A ...

Страница 147: ...03 2018 A5E41926185A 145 Quality documents C C 1 Quality documents SIMOTICS in SIOS You can find the quality documents here https support industry siemens com cs ww de ps 13310 cert https support industry siemens com cs ww en ps 13310 cert ...

Страница 148: ...Quality documents C 1 Quality documents SIMOTICS in SIOS 1MB155 1MB555 146 Operating Instructions 03 2018 A5E41926185A ...

Страница 149: ...ommon mode filters 47 Connecting cables Selection of 65 Cooling system faults 105 Correct usage 21 Coupling 48 D Damping cores 47 Disassembly Disposal 137 Disposal Chemicals 138 Components 138 E Electrical faults 103 Electromagnetic compatibility 17 Electromagnetic fields 14 Emergency off 99 Emitted interference 14 Equipotential bonding conductor 46 ESD guidelines 15 Explosion hazard 20 34 96 113 ...

Страница 150: ...ervals 107 Mechanical faults 104 Minimum air clearances 69 More information 141 N Noise emissions 14 O On site service 141 Operating mode 31 O ring seals 123 Output element 62 Overall flatness 61 Over critical machine 43 Overspeed 31 P Paint finish 30 Polarization index 38 50 53 83 86 113 Positioning 59 Precision alignment 59 Preload Rotor bracing 37 Preparations for assembly 49 Property class 59 ...

Страница 151: ...n of bolts 59 Spare parts 125 141 Spares on Web 126 Standard flange 59 60 Stoppages 99 Rolling bearings 101 Supplementary devices 28 Switching on 90 90 99 System resonances 43 T Tandem operation 48 Technical Support 141 Temperature class 98 101 Temperature limits 34 Terminal marking 67 Test run 90 Thermal motor protection 41 Tightening torques 65 Bolted connection 143 Type of balancing 62 Type of ...

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