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Siemens 1PH728, Operating Instructions Manual

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Faults 

 

6.1 Fault diagnosis table 

 

A5E00177602A AD 

48

 

Siemens AG  Operating Instructions 2.02  1PH728 

Table 6-2 

Diagnosis table for electrical faults 

Overview of electrical faults 
Electrical fault characteristics 
- Motor will not start up 
- Motor starts up slowly 
- Drumming noise during startup 
- Drumming noise during operation 
- Drumming noise in time with twice slip frequency 
- High temperature rise at no load 
- High temperature rise under load 
- High temperature rise of individual winding sections 

Note:  

If electrical faults occur, please refer to the manual 

for the frequency converter. 

Apart from eliminating the cause of the fault (as described under "Remedial measures"), you must also rectify any damage 

the motor may have suffered. 
Take into account possible changes due to a rise in temperature. 

[ID: 352.01] 

Summary of Contents for 1PH728

Page 1: ...Operating Instructions Edition 03 2008 Three phase induction motor AC COMPACT DRIVES Type 1PH728 Siemens Hardware ...

Page 2: ...17 03 2008 10 00 ...

Page 3: ...scription 2 Transport assembly and connection 3 Start up 4 Operation 5 Faults 6 Maintenance 7 Spare parts 8 Notes 9 Three phase induction motor AC COMPACT DRIVES 1PH728 Operating Instructions Edition 03 2008 Siemens Hardware ...

Page 4: ...n Commissioning and operation of a device system may only be performed by qualified personnel Within the context of the safety notes in this documentation qualified persons are defined as persons who are authorized to commission ground and label devices systems and circuits in accordance with established safety practices and standards Prescribed Usage Note the following WARNING This device may onl...

Page 5: ...oling 17 2 5 2 Drive 18 2 5 3 Construction types 19 2 5 4 Regulations 21 2 5 5 Degree of protection 21 3 Transport assembly and connection 23 3 1 Transport storage and maintenance 23 3 1 1 Transport storage 23 3 1 2 Storage 24 3 1 3 Preservation 25 3 2 Assembly 26 3 2 1 Installation 26 3 2 2 Mounting 28 3 3 Electrical connection 29 3 3 1 Safety note for the drive CLIQ interface 29 3 3 2 Connecting...

Page 6: ... 7 2 2 Initial inspection 56 7 2 3 Main service 56 7 3 Corrective Maintenance 57 7 3 1 Instructions for repair 57 7 3 2 Dismantling 58 7 3 3 Re assembly 62 7 3 4 Screw type connections 65 7 3 5 Replacing the sensor module 65 8 Spare parts 67 8 1 Orders for spare parts 67 8 2 Spare parts 1PH7 68 9 Notes 71 Index 75 Tables Table 2 1 Technical support 15 Table 2 2 Motor rating plate technical specifi...

Page 7: ... onto construction type IM B3 19 Figure 2 4 Layout of the louvered covers for various construction types 20 Figure 3 1 Connecting direction UVW for connection voltages of 690 V 29 Figure 3 2 Connecting direction UVW for connection voltage of 400 V 480 V 29 Figure 3 3 Detailed view Connecting points for ground conductor 1 2 33 Figure 3 4 Detailed view of fan fan unit terminal box 34 Figure 3 5 Deta...

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Page 9: ...missioning and operation of this machine are to be carried out by qualified personnel only For the purpose of the safety information in this Instruction Manual a qualified person is someone who is authorized to energize ground and tag equipment systems and circuits in accordance with established safety procedures 1 2 Safety and application instructions The safe use of electrical machines WARNING R...

Page 10: ...tions relating to installation connection ambient and operating conditions are taken into account at all times The system specific installation and safety regulations are observed Personal protective equipment is used Work on or in the vicinity of these machines by unqualified persons is prohibited If the machines are used outside industrial areas the installation site must be safeguarded against ...

Page 11: ... or even death It is therefore forbidden for persons with heart pacemakers to enter these areas The plant operator is responsible for taking appropriate measures labels and hazard warnings to adequately protect operating personnel and others against any possible risk Observe the relevant nationally applicable health and safety regulations In Germany electromagnetic fields are subject to regulation...

Page 12: ...nded Electronic modules should not be brought into contact with electrically insulating materials such as plastic foil plastic parts insulating table supports or clothing made of synthetic fibers Always place electrostatic endangered assemblies on conductive bases Always store and transport electronic modules or components in conductive packaging e g metallized plastic or metal containers Note If ...

Page 13: ...177602A AD Siemens AG Operating Instructions 2 02 1PH728 11 1 Sitting 2 Standing 3 Standing sitting ESD protective measures a conductive floor b ESD table c ESD footwear d ESD coat e ESD wrist strap f cubicle ground connection ID 6006 01 Siemens Hardware ...

Page 14: ...Safety information 1 5 EC Declaration by the Manufacturer A5E00177602A AD 12 Siemens AG Operating Instructions 2 02 1PH728 1 5 EC Declaration by the Manufacturer ...

Page 15: ...Safety information 1 6 EC Declaration of Conformity A5E00177602A AD Siemens AG Operating Instructions 2 02 1PH728 13 1 6 EC Declaration of Conformity Siemens Hardware ...

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Page 17: ...act for further information Details regarding the design of this electrical machine and the permissible operating conditions are described in these operating instructions If you have any questions or suggestions or if you require additional information please contact the Siemens Service Center Table 2 1 Technical support Phone 49 0 180 50 50 222 Europe Germany Fax 49 0 180 50 50 223 America USA Ph...

Page 18: ...s to the appropriate SIEMENS office immediately These Operating Instructions are included in the scope of delivery and must be kept in a location where they can be easily accessed The rating plate enclosed as a loose item with the delivery ensures that the motor data can also be affixed on or near the machine or system ID 303 02 2 4 Rating plate The motor rating plate shows the technical specifica...

Page 19: ...Maximum speed rpm ID 304 02 2 5 Layout 2 5 1 Cooling Description The three phase motors of the 1PH7 series are externally ventilated low voltage induction motors with a squirrel cage rotor and a separately driven fan unit mounted as standard They are of an enclosed design with an internal cooling circuit cooling method IC 06 DIN EN IEC 60034 6 The separately driven fan unit and the terminal box ca...

Page 20: ... Depending on the order various additional devices such as a space heater or sensor systems can be installed or built on NOTICE A minimum clearance of 170 mm from devices added on by the customer must be observed at the air intake opening and at the air outlet openings in order to guarantee the necessary flow of cooling air ID 309 01 2 5 2 Drive Description The variable speed three phase motors of...

Page 21: ... acc to rating plate Type Other applications in construction type IM B3 1PH7 284 1PH7 288 IM B6 IM B7 IM B8 IM B35 1PH7 284 1PH7 288 Optional basic construction types Type Other applications in construction type IM V5 1PH7 284 1PH7 288 IM V6 IM V 15 1PH7 284 1PH7 288 IM V 36 Additional hoisting points for different construction types option Additional hoisting points are provided for those constru...

Page 22: ... IM B6 X X IM B7 X X IM B8 X X IM V5 X X IM V6 X X IM V36 X X IM V15 X X Layout of the louvered covers for various construction types For those construction types that differ from basic construction types IM B3 and IM B35 the louvered covers must be positioned as follows at the air inlet and air outlet in order to maintain the degree of protection 0 9 9 0 9 9 Figure 2 4 Layout of the louvered cove...

Page 23: ...pe of construction IEC EN 60034 7 Noise emission IEC EN 60034 9 Vibration severity levels IEC EN 60034 14 1 See the rating plate for the degree of machine protection ID 319 01 2 5 5 Degree of protection The three phase motors of the 1PH7 series are built to degree of protection IP55 in accordance with IEC EN 60034 5 The shaft gland at the drive end is built to degree of protection IP54 as standard...

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Page 25: ...ebolts e g on fan cowls and cooler attachments are suitable only for hoisting the respective parts To hoist the motor in particular at attachments and built on assemblies use suitable cable guidance or spreading equipment Observe the lifting capacity of the hoisting gear For weight see rating plate and table Weights of standard versions Table 3 1 Weights of standard versions Type Weight 1PH7 284 A...

Page 26: ... following notes on storage Storing outdoors Store the machine in a location that meets the following criteria Choose a dry storage location with plenty of space which is safe from flooding and free from vibrations Repair any damage to the packaging before putting the equipment into storage insofar as this is necessary to ensure proper storage conditions Position machines devices and crates on pal...

Page 27: ...amage This can result in material damage such as damage to bearings due to vibration On machines that have been supplied with a rotor locking device secure the rotor as per the notes on transportation Protect the machine against strong radial vibrations since the rotor locking device might not absorb these completely Condensation water Condensation water can collect in the machine as a result of s...

Page 28: ...enclosure components of electric motors can become very hot possibly 100 C Do not touch enclosure components while the motor is running or immediately after it has been running CAUTION When positioning temperature sensitive components wires etc make sure that they are not in contact with the motor enclosure NOTICE Note also the technical specifications on the rating plates on the motor enclosure C...

Page 29: ...nstallation of suitable filters and special positioning of the intake and outlet openings units and wires are mounted without distortion the shipping covers of the ventilation openings are removed Balancing quality The rotors are balanced dynamically In the case of shaft ends with feather keys the method used to balance the rotors can be identified from the following coding to be found on the end ...

Page 30: ...on a stable foundation design is required the motor must be precisely aligned and the components that are to be mounted on the shaft end must be correctly balanced Fixing by means of motor feet If the motor needs to be aligned position metal shims underneath the feet in order to prevent the motor from suffering distortion The number of shims should be kept as low as possible i e stack as few as po...

Page 31: ...g connections on the sensor module with electrostatic charged hands or tools can cause malfunctions Comply with ESD protection measures Page 10 ID 962 01 3 3 2 Connecting the stator winding Circuit diagram Details with respect to wiring and connecting the motor winding are specified in the circuit diagram The circuit diagram is attached to the lid of the terminal box LUFXLW Figure 3 1 Connecting d...

Page 32: ...lowing definitions apply in principle to the terminal designations of three phase motors in accordance with DIN VDE 0530 Part 8 or IEC 60034 8 Table 3 3 Terminal designations with the 1U1 1 as an example 1 U 1 1 Designation x Index showing the pole assignment for pole changing motors where applicable a lower number indicates a lower speed or in special cases for a subdivided winding x Phase design...

Page 33: ...o 185 mm2 according to DIN 46235 The permissible external diameter of the connecting cable is 31 to 68 mm Remove the insulation from the conductor ends so that the remaining insulation is almost long enough to reach the cable lug If necessary insulate the cable lugs in order to maintain the minimum clearances in air of 10 mm and the 20 mm creepage distance normally present The tightening torque fo...

Page 34: ...losure or end shield to allow an outer PE conductor or equipotential bonding conductor to be connected see section entitled Connecting the ground conductor Final checks Before closing the terminal box please check that the electrical connections in the terminal box are tight and are in full compliance with the specifications above the required clearances in air of 10 mm are maintained no wire ends...

Page 35: ...ctor 1 2 This lug can be used for connecting stranded conductors with cable lugs or ribbon cables with an appropriately shaped conductor end The ground conductor must also be connected to the end shield of the motor ແ ໂ Figure 3 3 Detailed view Connecting points for ground conductor 1 2 When making connections ensure that The contact surface is clean and protected with a suitable anti corrosion ag...

Page 36: ...n operation CAUTION An external fan is only suitable for one direction of rotation The separately driven fan unit is only designed for one direction of rotation corresponding to the direction of rotation arrow Operation with the wrong direction of rotation can cause overheating or destruction of the motor Ensure that the external fan is operated in the proper direction of rotation The direction of...

Page 37: ...ens AG Operating Instructions 2 02 1PH728 35 3 3 5 Connecting the speed sensor Connection Connect the speed sensor to the terminal box by means of a plug in connection This is located at the side of the terminal box Figure 3 5 Detailed view Speed sensor connection Siemens Hardware ...

Page 38: ...gnal connection The signal connection between the motor and the converter is via the DRIVE CLiQ cable MOTION CONNECT Always use prefabricated cables from SIEMENS Thes cables reduce the mounting installation time and costs and increase operational reliability Push the connector on the DRIVE CLiQ cable into the socket until the catch spring latches into place Pay attention to the coding of the conne...

Page 39: ...r Module mounted on terminal box NOTICE Changing the cable outlet direction by any improper means will cause damage to the connecting cables The permissible rotation range must not be exceeded A maximum of ten changes to the rotation angle of the Sensor Module are permissible within the rotation range ID 964 3 3 7 Connecting the temperature sensor Connection Connect the wires of the temperature se...

Page 40: ... without sensor an armored conduit union is located here PG 13 5 It is screwed into the thread for the sensor connector Information about connection is provided in the auxiliary terminals diagram K789281 The motors are fitted with a back up temperature sensor which is likewise connected to the auxiliary terminals and if necessary can be reconnected to the plug connector of the speed sensor see aux...

Page 41: ...oing to use WARNING Hazardous voltage During the measurement and immediately afterwards hazardous voltage levels are applied on some of the terminals and they should not be touched Touching live components can be result in death or serious injury Never touch the terminals when measuring or immediately after the measurement Check the supply feeder cables connected in order to ensure that the line s...

Page 42: ... winding insulation resistance can drop due to ambient and operational influences The critical insulation resistance for a temperature of 25 C on the winding can be calculated by multiplying the rated voltage kV by the specific critical resistance value 5 MΩ kV Example Critical resistance for a rated voltage UN of 690 V 690 V x 5 MΩ kV 3 45 MΩ NOTICE Cleaning and or drying the windings when reachi...

Page 43: ...onditions according to type for example Couplings are aligned and balanced The belt tension is properly adjusted if there is a belt drive Gear tooth flank play and gear tooth tip play as well as radial play are properly adjusted if there is gearwheel drive The minimum insulation resistance values are maintained The grounding and equipotential bonding connections have been established correctly All...

Page 44: ...opriate commissioning tools e g Drive ES or STARTER CAUTION If the motor is not running smoothly or is emitting abnormal noises de energize it and determine the cause of the fault as the motor runs down NOTICE The critical speed nmax 3300 rpm is the maximum operating speed permissible over short periods ID 346 01 ...

Page 45: ...ctive cooling of the motor Removing the covers during operation can result in death serious injury and property damage Never open covers during operation CAUTION Speed monitoring The motor is designed for a certain speed range If a motor is operated at impermissible speeds damage to the winding bearings or complete destruction of the motor can be the result Ensure that the speeds specified on the ...

Page 46: ...in doubt switch off the drive in question immediately ID 348 See also Rating plate Page 16 Power on Page 41 5 2 Stoppages Measures when motors are at standstill and ready for operation For longer periods when the motor is not being used either energize the motor at regular intervals roughly once a month or at least spin the rotor Please refer to the section Energizing before restarting the motor N...

Page 47: ...ons 2 02 1PH728 45 5 3 Deactivating Measures when switching off See the operating instructions of the frequency converter for switching off Switch off the fan unit for longer standstill periods If a standstill heating unit is available switch it on ID 350 01 Siemens Hardware ...

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Page 49: ...ection of rotation of fan Check air passages clean filter replace fan if necessary x Rotor not balanced Decouple rotor and rebalance x Rotor out of true shaft bent Consult the manufacturer x Poor alignment Align motor unit check coupling 2 x x Coupled motor not balanced Rebalance coupled motor x Shocks from coupled motor Check coupled motor x Imbalance originating from gearing Adjust repair gearin...

Page 50: ... noise during operation Drumming noise in time with twice slip frequency High temperature rise at no load High temperature rise under load High temperature rise of individual winding sections Note If electrical faults occur please refer to the manual for the frequency converter Apart from eliminating the cause of the fault as described under Remedial measures you must also rectify any damage the m...

Page 51: ...its particularly in heating devices are also disconnected Please follow all instructions contained in the Safety information and application information Page 7 chapter of these operating instructions and ensure that only persons who have the necessary know how are entrusted to carry out work on power installations WARNING Fire hazard Some parts of the frame of electrical machines can reach tempera...

Page 52: ...uries such as chemical burns on the skin or respiratory passages or skin irritation When cleaning ensure that appropriate methods of extracting fumes are in place and that personal protective equipment such as gloves goggles face masks or similar items are worn If you use chemical cleaning agents observe the instructions and any warnings provided in the relevant safety data sheet The chemical clea...

Page 53: ...ions fouling switching frequency load etc Perform the following measures after the operation time or the interval specified in the following table elapses Table 7 1 Measures after operating times or intervals measures Operating tines and intervals Initial inspection After 500 operating hours at the latest after 1 2 years Regreasing See lubricant plate plate Cleaning Depending on degree of local fo...

Page 54: ...earing or cylindrical roller bearing is installed at the DE as a floating bearing For the bearing assignments as well as the associated permissible lateral forces and minimum loads when cylindrical roller bearings are installed at the DE refer to the catalog or contact us Preloading springs thrust collars and or equalizing rings are installed in the active part of the bearing at the DE to provide ...

Page 55: ...itable Table 7 2 Rolling contact bearing greases K3N greases ESSO Unirex N 3 ARAL Aralub 4340 DEA Glissando 30 ESSO Beacon 3 FUCHS Renolit FWA 220 SHELL Alvania RL3 WINTERSHALL Wiolub LFK 3 These greases have lithium soap as the thickening agent and mineral oil as the base oil They exceed the standard requirements of DIN 51825 in several important respects and are therefore compatible with the spe...

Page 56: ...nd NDE 2 Press in the type and quantity of grease specified see lubrication instruction plate Note The shaft should rotate so that the new grease can be distributed throughout the bearing The bearing temperature rises sharply at first then drops to the normal value again after the excess grease has been displaced out of the bearing ID 360 01 7 1 6 Cleaning Cleaning the greasing channels and used g...

Page 57: ...ws WARNING Personal protective measures when working with compressed air When cleaning with compressed air dust metal chips or cleaning agents can be whirled up Injuries can result When cleaning using compressed air make sure you use suitable extraction equipment and wear protective equipment safety goggles protective suit etc ID 362 02 7 2 Inspection 7 2 1 General inspection specifications Safety...

Page 58: ...racks Correct any deviations that are determined in the inspection without delay NOTICE Adapt the inspection to the plant specific conditions This list does not claim to be complete Further tests also should be carried out in accordance with the additional instruction manuals e g bearings cooler etc or in accordance with the particular system specific conditions ID 367 02 7 2 3 Main service Inspec...

Page 59: ...ly In the safety notes in this documentation qualified personnel refers to those persons who are authorized to commission ground and mark devices systems and circuits in accordance with established safety procedures Safety notes WARNING Rotating or live parts Rotating or live parts are dangerous Death serious injury or material damage can result if the required covers are removed or if the device ...

Page 60: ...and components attached to the motor shaft Three phase motors of a vertical construction type can be dismantled in the horizontal position Working with three phase motor in vertical position NOTICE When working on the locating bearing when the three phase motor is in its vertical position support the rotor When attaching the rotor in a vertical position make sure that the centering recesses in the...

Page 61: ...on Installing the active parts of the bearings NOTICE We recommend that you label the components that comprise the active part of the bearing before dismantling them in order to ensure correct reassembly NOTICE When dismantling and assembling the bearings make sure that you match up the components correctly bearings preloading springs equalizing rings caps with different centering length etc espec...

Page 62: ... 2 02 1PH728 Figure 7 2 Disassembling the rotary shaft seal Pull the rotary shaft seal together with the bearing cap and or end shield off the shaft Disassembling the speed sensor ແ ໂ ໃ ໄ Figure 7 3 Detailed view of the speed sensor Shaft Torque transmission element Speed sensor Sensor cover ...

Page 63: ...on Pull the cable carefully out of its holder Pull out the connector 3 Remove the screw connections holding the sensor on the end shield 4 Pull the sensor off the shaft with the aid of a puller There are two ways of doing this 0 0 0 ແ ໂ Figure 7 4 Disassembling the speed sensor forcing off 1st option Unscrew the screw M5x50 Screw in the screw M5x10 and the screw M6x70 one after the other This rele...

Page 64: ...om the stator housing do not become damaged NOTICE Take great care and pay attention to cleanliness when fitting and assembling the bearings Sealing measures when reassembling Due to the stricter requirements of degree of protection IP55 joint sealant must be used for motors from the 1PH7 series Clean bare joints between parts before reassembling e g between enclosures end shields and the active p...

Page 65: ...t also be resealed with a suitable silicone free sealant during assembly ແ ໂ ໃ ໄ Figure 7 6 Sealing gap between enclosure and end shields End shields Sealing gap Housing Protective tube Before you screw on the end shields seal the gap with MARSTON HYLOMAR SQ32M sealant NOTICE Check the sealing elements fitted e g at the terminal boxes and replace them if they do not provide an adequate seal Siemen...

Page 66: ...gs onto the shaft up to its shoulder NOTICE Avoid any heavy blows that might damage the bearings CAUTION When installing replacing the bearing make sure that an insulated bearing is installed again at the non drive end N end Fill the bearings with specified grease see section entitled Types of grease until it is flush Also observe the following installation condition If rotary shaft seals without ...

Page 67: ...llowing torque with a tolerance of 10 depending on the thread size Table 7 4 Tightening torque for screwed union connections Thread size M6 M8 M10 M12 M16 M20 M24 Tightening torque Nm 8 20 40 70 170 340 600 Please refer to the relevant sections and drawings for all other tightening torques electrical connections and bolted connections for parts with flat gaskets Bolt locking devices Nuts or bolts ...

Page 68: ...fic data and an electronic nameplate If you operate a different Sensor Module on the motor this can result in serious injury or death or cause considerable material damage Only operate the sensor module on the original motor Do not install the sensor module on other motors Do not replace the sensor module with a sensor module from a different motor ID 967 01 See also Siemens Service Center Page 15...

Page 69: ...in the list of spare parts and specified together with the appropriate spare part number Example End shield drive end part 5 00 For type 1PH7 No N 1234567000010 Replacing rolling contact bearings When replacing rolling contact bearings in addition to the bearing identification code the replacement code for the bearing version is also required Both of these codes are specified on the lubricant plat...

Page 70: ...Spare parts 8 2 Spare parts 1PH7 A5E00177602A AD 68 Siemens AG Operating Instructions 2 02 1PH728 8 2 Spare parts 1PH7 Spare parts Figure 8 1 Spare parts 1PH7 ...

Page 71: ...cating bearing 4 50 Inner bearing cap 5 00 End shield DE 5 41 Louvered cover 6 00 End shield NDE 6 44 Cover 6 45 Cover with seal 6 80 Sensor cover 8 00 Rotor complete 9 00 Protective tube DE 9 01 Protective tube NDE 10 00 Stator housing with laminated core and winding 10 53 Special eyebolt 13 80 Grease nipple Terminal box Type 1XB7712 20 08 Terminal box base 20 20 Housing terminal box 20 30 Lid te...

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Page 77: ...ternal fan Maintenance 53 I Initial inspection 53 58 Inspection interval 58 Insulation resistance 41 M Main inspection 53 Maintenance intervals 53 P Preservation 25 R Rating plate 16 Regreasing 53 S Sensor module 29 68 Siemens Service Center 15 Storage 24 Storage location 24 T Tightening torque Screwed union connections 67 U Used grease chamber 56 Siemens Hardware ...

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Page 81: ...AB U161 Konformitätserklärung AB U151 Herstellererklärung Siemens Hardware ...

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