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Answers for industry.

1LG0 low-voltage motor

Installation and Maintance Manual

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Содержание 1LG0

Страница 1: ...1 Answers for industry 1LG0 low voltage motor Installation and Maintance Manual ...

Страница 2: ...Box 6 3 3 Balancing and Transmission Coupling 6 3 4 Electrical Connection 7 3 5 Insulation Resistance Inspection 9 3 6 Drive Application 10 4 0 MAINTANCE 11 4 1 Bearing Lifetime 11 4 2 Grease Type 12 4 3 Grease Lifetime and Regreasing Intervals 12 4 4 Regreasing Procedure 13 4 5 Bearing Replacement 14 4 6 Drain Plug 15 5 0 START UP 16 6 0 SPARE PARTS 17 2 ...

Страница 3: ...ury or equipment damage Furthermore the pertinent national local and plant speciﬁc regulations and requirements should be kept in mind and observed Special designs may vary in technical details If in doubt please contact the manufacturer referencing the type designation and serial number see rating plate or have the installation service and maintenance work executed by one of the SIEMENS Service C...

Страница 4: ...ress of water and liquids into the motor housing along the DE shaft Please refer to the following environmental application conditions Installation Altitude 1000m ASL Ambient temperature 40ºC Operating temperature range 20ºC 40ºC Relative Humidity 20ºC T 20ºC 100 20ºC T 30ºC 95 30ºC T 40ºC 55 Note If the ambient conditions and site altitude is different from the above mentioned please review the d...

Страница 5: ...has exceeded 2 years from date of motor manufacture If the motors have the regreasable bearings then the recommendation is to replace the grease after 2 years of storage The service life of the motor can be considerably reduced if the storage period extends beyond 2 years in environments with high moisture and dirt If necessary the insulation resistance of the winding could be measured determine t...

Страница 6: ... so as to avoid excessive vibration which can result in premature bearing failure 3 2 Terminal box Terminal box is either top or side mounted LHS or RHS on the motor and can be rotated 4 times by 90º thus allowing for multiple cable entry possibilities 3 3 Balancing and coupling of transmission elements To ensure a quiet and vibration free operation proper angular and radial alignment of a balance...

Страница 7: ...suitable for bi directional rotation CW or CCW Phase change can be achieved by interchanging any two phases Mains Power Connection Windings of standard three phase single speed motors can be connected either in star or delta or star delta connection Voltage and frequency deviations of 5 Vac and 2 Hz respectively of the rated voltage and frequency values are acceptable for proper operation Cable Co...

Страница 8: ...noted that the torque of an induction squirrel cage motor is directly proportional to the square of the voltage Motors whose rated voltage with delta connection corresponds to the mains voltage can be started with the star delta method Note If the auxiliary or mains cable entries on the terminal box is sealed with gland plugs a ﬂat standard screw driver is required for removal Delta connection A d...

Страница 9: ... have two types of electrical protection available as an option PTC used for temperature alarming or tripping function PT100 used for alarming or tripping function Note Both the PTC and PT100 require connection to an external control unit Motors which are exposed to a wide temperature ﬂuctuation during standstill are susceptible to condensation formation hence it is strongly recommended that a spa...

Страница 10: ...minimum insulation resistance between the windings and ground measurement is taken at 500Vdc and at a winding temperature of 25ºC 15ºC Corrective measures If the minimum insulation resistance is measured at less than 10MOhms Cause Might be due to high humidity Correction Windings must be dried Cause After extended periods of operation the minimum insulation resistance may decrease However as long ...

Страница 11: ...ctrical interference depends on the type of drive used type number of IGBTs interference suppression measures and manufacturer cabling distance and application requirements The installation guidelines of the drive manufacturer with regards to electromagnetic compatibility must be considered at all times during the design and implementation phases If the motor is driven by a drive and the operating...

Страница 12: ...r drain plug location 4 1 Bearing lifetime The average bearing lifetime for motors with sealed or open bearing at the DE NDE varies between 20 000 and 40 000 hours for horizontal mounted motors without additional axial loading This 20 000 or 40 000 hours of operation applies to 2 4 6 pole motors when operated at an ambient 40ºC based on rating plate data For every 10K temperature rise above 40ºC t...

Страница 13: ...d with a regreasing nipple K40 option the recommended regreasing intervals is as per Table 3 Regreasing of 2 4 6 poles motors from FS180 FS280 is only possible when the K40 option is selected Exception In applications where the motor is installed vertically or operating with heavy vibration sudden load changes frequent reversing operation etc the grease should be changed at considerably more frequ...

Страница 14: ...ng temperature If it is not possible to regrease the motor during operation then it recommended that a partial amount of the grease is injected and then the motor energised and rotated for a few revolutions to allow for grease dispersion After coming to a complete stop the remaining grease should be added If a DE or NDE bearing have experienced overheating it is recommended that the bearing should...

Страница 15: ... to remove the damaged or worn bearing Before installing the new bearing pre heat the bearing as per the manufacture instruction prior to pressing it onto the rotor shaft Shaft sealing rings V Ring or Oil Seal must be replaced with new ones after bearing replacement Size M4 M5 M6 M8 M10 M12 M16 M20 Torque Nm 2 3 5 6 16 28 46 110 225 Please refer to tightening torques for the end ﬂange bolts Note T...

Страница 16: ...16 4 6 Condensation drain plug On B3 construction types the drain holes are located on the frame of the motor Motors with drain holes are delivered from the factory with pre installed plastic plugs ...

Страница 17: ...n grease if equipped with regreasing nipples 4 Mains supply voltage and connection method match those of the rating nameplate for operation on DOL Soft start Drive 5 Proper connection of earthing grounding terminal 6 Terminal connection correctness for thermal sensor and space heater if equipped After power is applied to the motor be sure to check motor for correct direction of rotation air ﬂow cu...

Страница 18: ...r all frame sizes 5 Complete terminal box with out terminal board Spare part inquiry When enquiring about spares it is necessary to provide the following information such as construction type mounting arrangement motor serial number and MLFB No when available Note Minimum ordering quantities and values may apply Please inquire ...

Страница 19: ...19 NOTE ...

Страница 20: ...20 Subject to change without prior notice Siemens 09 2009 Siemens Ltd China Industry Sector Drive Technologies ...

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