SERVICE MANUAL
Contents
1. WARNING Servomotors contain magnetic material which will attract metal particles Care should be taken when dismantling motors to avoid this All A C servomotors manufactured by SEM contain magnets which are air stable and can be dismantled without demagnetisation controlled motor technology servicing instructions 1 1 1 1 2 1 3 1 4 1 5 1 6 2 1 2 2 2 3 2 4 3 1 3 2 3 3 GENERAL Before starting work on the motor these servicing instructions should be read and fully understood Servicing of SEM motors must be done only by suitably trained and qualified personnel and only after such motors have been electrically isolated and removed from their mechanical drives The jaws of any vice or clamp must be suitably protected when used to grip any part of the motor When separating the motor end covers from the motor body care must be taken to avoid damage to their mating surfaces NOTE There are strong magnetic forces between the stator and the rotor of all SEM servomotors Fingers should be kept clear of the gaps between the stator and end covers during assembly and disassembly of the rotor Dismantled components awaiting reassembly should be kept in a safe clean and dry location Various types of encoder are used involving different procedures for dismantling reassembly connection setting up and testing Contact SEM with regard to relevant servicing procedures for th2. onto the DE shaft extension and while supporting the SEM after motor technology SEM Limited Faraday Way Orpington Kent BR5 3QT England Telephone 44 0 1689 884700 Fax 44 0 1689 884884 E mail info sem co uk Internet http www sem co uk 5 8 5 9 5 10 5 11 5 12 5 13 5 14 5 15 5 16 5 17 5 18 5 19 6 1 6 2 6 3 6 4 6 5 NDE of the shaft press this collar along the shaft until the DE bearing 38 is hard against its shoulder on the shaft Also fit NDE bearing to the shaft Offer the NDE cover to the motor body and reconnect thermal sensor leads at their in line connector Also reconnect the earth lead to its terminal on the cover Fix the NDE cover 7 to the motor body with 4 screws 8 and washers 9 6 6 Place two wave washers 32 in the bearing recess in the 6 7 NDE cover a smear of grease or a tilting of the motor body will hold them in position If no brake is used fully insert the motor rotor into the drive end of the motor stator carefully locating the NDE bearing 33 into the recess in the NDE cover If a brake is used partially insert the motor rotor into the motor stator leaving adequate access to the brake connections Reconnect these leads at their inline connector and press them into a safe position The fully insert the motor rotor into the motor stator carefully locating the NDE bearing 33 into the bearing recess in 7 the NDE cover
3. then be disconnected at their in line connector Also disconnect the earth lead from its terminal on the NDE cover If a brake is used undo 3 screws 43 and detach brake stator 36 from the NDE cover 7 Otherwise undo screws 41 and remove the bearing clamp plate 35 Using a suitable bearing extractor tool remove the DE bearing 38 and its retaining collar 40 from the motor shaft Remove the NDE bearing from the NDE cover If a brake is used remove the brake rotor 37 from the motor shaft but only if necessary RE ASSEMBLY Note As standard procedure during reassembly circlip shaft seal all bearings and O Rings MUST be renewed to SEM specification Fit new O Rings 6 and 10 to DE and NDE covers respectively Fit new NDE bearing 33 in the NDE cover If a brake is used fix its stator 36 to the inside of NDE cover 7 with brake leads uppermost using 3 screws 43 and washers 44 Otherwise fix the bearing clamp plate 35 to the NDE cover with screws 41 Offer the NDE cover to the motor body and reconnect the brake leads at their in line connector Press these leads out of harm s way Also reconnect the earth lead to its terminal on the NDE cover Using 4 screws 8 and washers 9 fix the NDE cover 7 to the motor body locating this cover in accordance with marks made in operation 2 3 If a brake rotor 37 has been previously removed from the shaft this rotor should be pressed back int
4. 4 screws 12 and partly drawing off enclosing cover 11 far enough to give access to the thermal sensor leads Disconnect these leads at their in line connector With the enclosing cover hanging by the wiring remove the plastic shield 18 from the resolver Then mark the outward facing end faces of the resolver stator 14 and resolver rotor 17 recording their relative angular positions operation 2 4 After removing 3 screws 15 and clamping washers 16 carefully remove the resolver stator from the NDE cover 7 and from the resolver rotor Remove the enclosing cover 11 together with the resolver stator 14 and the feedback connector if still attached taking care not to damage the wiring While firmly holding the motor DE shaft extension if no brake used unscrew and remove shaft nut 19 Then carefully remove the resolver rotor 17 Remove the circlip 42 from the NDE shaft extension Remove 8 screws 4 and while firmly holding the motor body pull the DE cover 3 from it Remove the wave washer 32 and the shaft seal 39 from the cover From the drive end pull the motor rotor out of the motor stator if necessary aided by gently tapping the NDE shaft end with a small fibre mallet Remove 4 screws 8 and pull the NDE cover 7 complete with NDE bearing and brake stator 36 off the motor body If a brake is used initially pull the cover away partially to allow access to the brake leads which should
5. Collar 41 Fixing Screws for bearing clamp plate 42 Washers for bearing clamp plate screws 43 Fixing screws for brake stator 44 Washers for brake stator fixing screws SEM Limited Faraday Way Orpington Kent BR5 3QT England Telephone 44 0 1689 884700 Fax 44 0 1689 884884 E mail info sem co uk Internet http www sem co uk ferc motor technology WARNING Servomotors contain magnetic material which will attract metal particles Care should be taken when dismantling motors to avoid this All A C servomotors manufactured by SEM contain magnets which are air stable and can be dismantled without demagnetisation ane SEM Limited Faraday Way Orpington Kent BRS 3QT Togam p Telephone 44 0 1689 884700 2 TAL C Fax 44 O 1689 884884 ukas E mail info sem co uk Sa ATTE Internet http www sem co uk CERTIF ATE No pe AVAILABLE S m motor technology
6. give access to the thermal sensor leads Disconnect these leads at their in line connector With the enclosing cover hanging by the wiring remove the plastic shield 18 from the resolver Then mark the outward facing end faces of the resolver stator 14 and resolver rotor 17 recording their relative angular positions operation 2 4 After removing 3 screws 15 and clamping washers 16 carefully remove the resolver stator from the NDE cover 7 and from the resolver rotor Remove the enclosing cover 11 together with the resolver stator 14 and the feedback connector if still attached taking care not to damage the wiring While firmly holding the motor DE shaft extension if no brake used unscrew and remove shaft nut 19 Then carefully remove the resolver rotor 17 Remove 8 screws 4 and while firmly holding the motor body pull out from the DE the motor rotor complete with the DE cover 3 and the brake stator 36 if fitted Ifa brake is used initially pull the rotor partially out to give sufficient access to the brake leads Then disconnect these leads at their in line connector Remove 6 screws 41 holding the bearing clamp plate 35 to the DE cover then pull this cover away from the clamp plate or from the brake and off the DE bearing Remove the shaft seal 39 and O Ring 6 from the DE cover Using a suitable bearing extractor tool remove the DE bearing and its retaining collar 40 from the shaft
7. supplies the voltmeter and links let the brake if used be re applied Attach the protective shield 18 to the resolver and fix the enclosing cover 11 to the NDE cover in accordance with marks made in operation 2 2 ELECTRICAL TESTS NECESSARY BEFORE CONNECTING MOTOR TO AMPLIFIER Measure motor stator winding resistances U V VW W U These must be equal to within 3 Check dielectric strength by flash test at 1000 Vac from a Phase U power connector pin U to motor body b Phase U to thermal sensor feedback connector pins Thermal Sensor and Thermal Sensor c Phase U to brake connections power connector pins B and B If flash test is not possible then check that insulation resistance is greater than 1megaohm Check dielectric strength by flash test at 500Vac or with a 500V dc from motor body to a Brake connections B B power connector pins and b Thermal sensor feedback connector pins Thermal sensor and Thermal Sensor c Resolver feedback connector pins R2 and R1 If flash test is not possible then check that insulation resistance is greater than 1megaohm SEM ferc motor technology SEM Limited Faraday Way Orpington Kent BR5 3QT England Telephone 44 0 1689 884700 Fax 44 0 1689 884884 E mail info sem co uk Internet http www sem co uk HJ1 55 Servicing and Maintenance Instructions Pa Sea ed Faraday Way Orpington Kent BR5 3QT England Tele Gi 44 on
8. the wiring remove the plastic shield 18 from the resolver Then mark the outward facing end faces of the resolver stator 14 and resolver rotor 17 recording their relative angular positions operation 2 4 After removing 3 screws 15 and clamping washers 16 carefully remove the resolver stator from the NDE cover 7 and from the resolver rotor Remove the enclosing cover 11 together with the resolver stator 14 and the feedback connector if still attached taking care not to damage the wiring While firmly holding the motor DE shaft extension if no brake used unscrew and remove shaft nut 19 Then carefully remove the resolver rotor 17 Remove 8 screws 4 and while firmly holding the motor body pull out from the DE the motor rotor complete with the DE cover 3 and the brake stator 36 if fitted If a brake is used initially pull the rotor partially out to give sufficient access to the brake leads Then disconnect these leads at their in line connector Remove 6 screws 41 holding the bearing clamp plate 35 to the DE cover then pull this cover away from the clamp plate or from the brake and off the DE bearing Remove the shaft seal 39 and O Ring 6 from the DE cover Using a suitable bearing extractor tool remove the DE bearing and its retaining collar 40 from the shaft Similarly remove the NDE bearing Remove the bearing clamping plate 35 or the brake stator from the motor rotor and only if
9. 44 0 1689 884700 Fax 44 0 1689 884884 E mail info sem co uk Internet http www sem co uk ferc motor technology servicing instructions 1 1 1 1 2 1 3 1 4 1 5 1 6 2 1 2 2 2 3 2 4 3 1 3 2 3 3 GENERAL Before starting work on the motor these servicing instructions should be read and fully understood Servicing of SEM motors must be done only by suitably trained and qualified personnel and only after such motors have been electrically isolated and removed from their mechanical drives The jaws of any vice or clamp must be suitably protected when used to grip any part of the motor When separating the motor end covers from the motor body care must be taken to avoid damage to their mating surfaces NOTE There are strong magnetic forces between the stator and the rotor of all SEM servomotors Fingers should be kept clear of the gaps between the stator and end covers during assembly and disassembly of the rotor Dismantled components awaiting reassembly should be kept in a safe clean and dry location Various types of encoder are used involving different procedures for dismantling reassembly connection setting up and testing Contact SEM with regard to relevant serving procedures for the particular type of encoder involved MARKING The following relationships must be marked with a marker pen or other suitable method before dismantling Drive end DE cover 3 to motor bod
10. Locate the DE cover in accordance with marks made in operation 2 1 and fix this cover to the motor body with 8 screws 4 and washers 5 6 8 Feed resolver rotor 17 on to the NDE shaft extension vA with marks made in operation 2 4 on the outward side as before Then fix this rotor in position with the shaft nut 19 Feed the resolver stator 14 over the resolver rotor with marks made in operation 2 4 on outward side as before Then fix the stator to the NDE cover 7 with screws 15 and their clamping washers 16 with washer flanges on the inward side 7 2 Re connect the thermal sensor leads at their in line connector If pins have not been removed from the feedback 7 3 connector proceed to section 6 Resetting resolver position after re assembly Otherwise if pins have been removed proceed as follows Feed leads from the resolver stator and from the thermal sensor through the connector hole on enclosing cover 11 Then feed this wiring through connector housing 23 and gaskets 24 and reassemble this housing onto enclosing cover 11 Press the pins back until they click into their previous positions in connector plug 20 then fix this plug gasket 921 and rear cover 22 on to housing 23 RESETTING THE RESOLVER This only applies to a standard resolver supplied by SEM with the standard setting For any other resolver refer to the drive manufacturer For these procedures it is necessary to
11. Oe eS Motor Body Motor Rotor DE Cover DE Cover fixing screws Washers for DE cover fixing screws DE Cover O ring NDE Cover NDE Cover fixing screws Washers for NDE cover fixing screws NDE Cover O rings Enclosing Cover Enclosing Cover fixing screws Washers for Enclosing Cover fixing screws Resolver stator Note that resolver is shown but that Resolver stator fixing screws various types of encoders may be Resolver stator clamping washers fitted Contact SEM for relevant Resolver rotor servicing and setting procedures for Resolver protective shield the particular type of encoder involved Shaft nut Feedback Connector multi pin receptacle Feedback Connector rear gasket Feedback Connector rear cover Feedback Connector housing Feedback Connector bottom gasket Feedback Connector housing fixing screws Power Connector multi pin receptacle Power Connector rear gasket Power Connector rear cover Power Connector housing Power Connector bottom gasket Power Connector housing fixing screws Wave Washer NDE Bearing Key for brake rotor Bearing Clamp plate Brake stator optional Brake rotor optional DE Bearing Shaft seal Retaining Collar Fixing Screws for bearing clamp plate Circlip Fixing screws for brake stator Washers for brake stator fixing screws SEM Limited Faraday Way Orpington Kent BR5 3QT England Telephone
12. Similarly remove the NDE bearing Remove the bearing clamping plate 35 or the brake stator from the motor rotor and only if necessary remove the brake rotor from the shaft Remove 4 screws 8 and pull back the NDE cover 7 from the motor body Disconnect the earth lead at its terminal on this cover and carefully avoid damage to leads passing through this cover Remove O Ring 10 and wave washers 32 from this cover RE ASSEMBLY Note As standard procedure during reassembly circlip shaft seal and all bearings and O Rings MUST be renewed to SEM specification Fit new O Rings 6 and 10 to DE and NDE covers respectively Fit new DE bearing 38 onto the bearing recess in DE cover 3 Fix brake stator 36 if used to the DE cover with brake leads uppermost using 6 long screws 43 and washers 44 to clamp the bearing If no brake is fitted fix bearing clamp plate 35 to the DE cover with screws 41 and washers 42 If a brake rotor has previously been removed from the shaft it should be pressed back onto the shaft next While holding the motor shaft vertically with the DE uppermost feed the DE bearing 38 onto its seating on the shaft At the same time if a brake is used carefully mesh the brake stator teeth with the brake rotor teeth and gently press the brake stator into position Using a sleeve and taking care to keep the collar square to the shaft press the collar feed the retaining collar 40
13. ashers for brake stator fixing screws optional SEM Limited Faraday Way Orpington Kent BR5 3QT England Telephone 44 0 1689 884700 Fax 44 0 1689 884884 E mail info sem co uk Internet http www sem co uk ferc motor technology servicing instructions 1 1 1 1 2 1 3 1 4 1 5 1 6 2 1 2 2 2 3 2 4 3 1 3 2 3 3 GENERAL Before starting work on the motor these servicing instructions should be read and fully understood Servicing of SEM motors must be done only by suitably trained and qualified personnel and only after such motors have been electrically isolated and removed from their mechanical drives The jaws of any vice or clamp must be suitably protected when used to grip any part of the motor When separating the motor end covers from the motor body care must be taken to avoid damage to their mating surfaces NOTE There are strong magnetic forces between the stator and the rotor of all SEM servomotors Fingers should be kept clear of the gaps between the stator and end covers during assembly and disassembly of the rotor Dismantled components awaiting reassembly should be kept in a safe clean and dry location Various types of encoder are used involving different procedures for dismantling reassembly connection setting up and testing Contact SEM with regard to relevant serving procedures for the particular type of encoder involved MARKING The following re
14. cover in accordance with marks made in operation 2 2 ELECTRICAL TESTS NECESSARY BEFORE CONNECTING MOTOR TO AMPLIFIER Measure motor stator winding resistances U V V W W U These must be equal to within 3 Check dielectric strength by flash test at 1000 Vac from a Phase U power connector pin U to motor body b Phase U to thermal sensor feedback connector pins Thermal Sensor and Thermal Sensor c Phase U to brake connections power connector pins B amp B If flash test is not possible then check that insulation resistance is greater than 1megaohm Check dielectric strength by flash test at 500Vac or with a 500Vdc supply from motor body to a Brake connections power connector pins B and B b Thermal sensor feedback connector pins Thermal Sensor and Thermal Sensor c Resolver feedback connector pins R2 and S1 If flash test is not possible then check that insulation resistance is greater than 1megaohm SEM ferc motor technology SEM Limited Faraday Way Orpington Kent BR5 3QT England Telephone 44 0 1689 884700 Fax 44 0 1689 884884 E mail info sem co uk Internet http www sem co uk HJ96 Servicing and Maintenance Instructions Pa SEM Limited Faraday Way Orpington Kent BR5 3QT England Telephone 44 0 1689 884700 Fax 44 0 1689 884884 g E mail info sem co uk Internet http www sem co uk L A controlled motor technology HJ96 PARTS LIST 0 00 N D
15. d links via a suitable separate test socket which mates with the feedback connector multi pin plug 20 and which has short leads connected to its sockets Alternatively appropriate pins can be made available for connections and links by withdrawing them from plug 20 as in Section 3 Disconnection If a brake is used it must be temporarily held off during this operation by applying a 24V dc supply across the brake terminals Undo 4 screws 12 and pull back the enclosing cover 11 to give access too the resolver With the above test plug connected to the feedback connector link pins R1 to S3 amp pins R2 to S2 Connect a signal generator approx 5V 6kHz between pins R1 and R2 Connect an AC voltmeter between pins S1 and R2 At the power connector link motor phase pins V and W and then connect a low voltage dc supply to motor phases at power connector pins U ve and V W ve Adjust this voltage to give between 25 and 100 of motor rated current thereby causing the motor to turn to a preferred position Slacken the 3 screws 15 holding the resolver stator and then rotate it until the voltmeter gives a maximum reading Reconnect the AC voltmeter to pins S4 and R2 Make a small final adjustment of the resolver stator to get a minimum reading Retighten the screws disconnect the test socket the supplies the voltmeter and links let the brake if used be re applied Attach the protective shield 18 to the resolver an
16. d fix the enclosing cover 11 to the NDE cover in accordance with marks made in operation 2 2 ELECTRICAL TESTS NECESSARY BEFORE CONNECTING MOTOR TO AMPLIFIER Measure motor stator winding resistances U V VW W U These must be equal to within 3 Check dielectric strength by flash test at 1000 Vac from a Phase U power connector pin U to motor body b Phase U to thermal sensor feedback connector pins Thermal Sensor and Thermal Sensor c Phase U to brake connections power connector pins B and B If flash test is not possible then check that insulation resistance is greater than 1megaohm Check dielectric strength by flash test at 500v dc supply or with a 500V megger from motor body to a Brake connections B B power connector pins and b Thermal sensor feedback connector pins Thermal sensor and Thermal Sensor c Resolver feedback connector pins R2 and R1 If flash test is not possible then check that insulation resistance is greater than 1megaohm SEM ferc motor technology SEM Limited Faraday Way Orpington Kent BR5 3QT England Telephone 44 0 1689 884700 Fax 44 0 1689 884884 E mail info sem co uk Internet http www sem co uk HJ1 1 6 Servicing and Maintenance Instructions Pa SEM Limited Faraday Way Orpington Kent BR5 3QT England Telephone 44 0 1689 884700 Fax 44 0 1689 884884 E mail info sem co uk Internet http www sem co uk contro
17. e particular type of encoder involved MARKING The following relationships must be marked with a marker pen or other suitable method before dismantling Drive end DE cover 3 to motor body 1 Enclosing Cover 11 to non drive end NDE cover 7 Non drive end cover to motor body Prior to resolver dismantling mark outside end faces of resolver stator 14 and resolver rotor 17 DISCONNECTION If servicing work is required on the feedback connector or if the resolver stator 14 is to be completely removed then proceed as follows Otherwise proceed to Section 4 Dismantling Undo the screws and prise off the rear cover 22 of the feedback connector to allow access to the connector pins If an appropriate SEM pin connection diagram is not available record the pin positions on the connector Using a special pin removal tool available from SEM withdraw the pins If it is necessary to remove the resolver stator 14 and its wiring from the motor completely remove 4 screws 25 and remove the feedback connector housing 23 from the enclosing cover 11 Remove 4 screws 12 and while carefully drawing the enclosing cover 11 off the NDE cover 7 draw the wiring through the hole in the enclosing cover 4 1 4 2 4 3 4 4 4 5 4 6 4 7 4 8 4 9 4 10 4 12 5 1 5 2 5 3 5 4 5 5 5 6 5 7 DISMANTLING If above procedures 3 1 3 2 and 3 3 are not necessary start by removing
18. es 884700 aks 44 0 1689 884884 g E m eae m co uk Internet http paw sem co uk L A controlled motor technology HJ T 155 PARTS LIST 1 Motor Body 2 Motor Rotor 3 DE Cover 4 DE Cover fixing screws 5 Washers for DE cover fixing screws 6 DE Cover O ring 7 NDE Cover 8 NDE Cover fixing screws 9 Washers for NDE cover fixing screws 10 NDE Cover O ring 11 Enclosing Cover 12 Enclosing Cover fixing screws 13 Washers for Enclosing Cover fixing screws 14 Resolver stator Note that resolver is shown but that 15 Resolver stator fixing screws various types of encoders may be 16 Resolver stator clamping washers fitted Contact SEM for relevant 17 Resolver rotor servicing and setting procedures for 18 Resolver protective shield the particular type of encoder involved 18 Resolver protective shield 19 Shaft nut 20 Feedback Connector multi pin receptacle 21 Feedback Connector rear gasket 22 Feedback Connector rear cover 23 Feedback Connector housing 24 Feedback Connector bottom gasket 25 Feedback Connector housing fixing screws 26 Power Connector multi pin receptacle 27 Power Connector rear gasket 28 Power Connector rear cover 29 Power Connector housing 30 Power Connector bottom gasket 31 Power Connector housing fixing screws 32 Wave Washers 33 NDE Bearing 34 Brake optional 35 Bearing Clamp plate 36 Brake stator optional 37 Brake rotor optional 38 DE Bearing 39 Shaft seal 40 Retaining
19. extension 7 1 with marks made in operation 2 4 on the outward side Fix this rotor in position with shaft nut 19 72 Feed the resolver stator 14 over the resolver rotor with marks made in operation 2 4 on the outward side as before Then fix this stator to the NDE cover with 3 screws 15 and their clamping washers 16 with washer flanges on the inward side Offer the enclosing cover 11 to the NDE cover 7 and re connect the thermal sensor leads to their in line connector If pins have not been removed from the feedback connector proceed to Section 6 Resetting resolver position after re assembly Otherwise proceed as follows 7 3 Feed leads from the resolver stator and thermal sensor through the connector hole in the enclosing cover 11 and the through the connector housing 23 and gasket 24 Then re assemble this housing on the enclosing cover Press pins back until they click into their previous positions in the connector socket and then reassemble this socket its gasket 21 and its back plate onto feedback connector housing 23 RESETTING THE RESOLVER This only applies to a standard resolver supplied by SEM with the standard setting For any other resolver refer to the drive manufacturer For these procedures it is necessary to make connections and links to feedback connector pins To avoid damage to these pins it is advisable to make such connections and links via a suitable separate test soc
20. hers 5 6 8 Feed resolver rotor 17 on to the NDE shaft extension vA with marks made in operation 2 4 on the outward side as before Then fix this rotor in position with the shaft nut 19 Feed the resolver stator 14 over the resolver rotor with marks made in operation 2 4 on outward side as before Then fix the stator to the NDE cover 7 with screws 15 and their clamping washers 16 with washer flanges on the inward side 7 2 Re connect the thermal sensor leads at their in line connector If pins have not been removed from the feedback 7 3 connector proceed to section 6 Resetting resolver position after re assembly Otherwise if pins have been removed proceed as follows Feed leads from the resolver stator and from the thermal sensor through the connector hole on enclosing cover 11 Then feed this wiring through connector housing 23 and gaskets 24 and reassemble this housing onto enclosing cover 11 Press the pins back until they click into their previous positions in connector plug 20 then fix this plug gasket 921 and rear cover 22 on to housing 23 RESETTING THE RESOLVER This only applies to a standard resolver supplied by SEM with the standard setting For any other resolver refer to the drive manufacturer For these procedures it is necessary to make connections and links to feedback connector pins To avoid damage to these pins it is advisable to make such connections an
21. ket which mates with the feedback connector multi pin plug 20 and which has short leads connected to its sockets Alternatively appropriate pins can be made available for connections and links by withdrawing them from plug 20 as in Section 3 Disconnection If a brake is used it must be temporarily held off during this operation by applying a 24V dc supply across the brake terminals Undo 4 screws 12 and pull back the enclosing cover 11 to give access to the resolver With the above test plug connected to the feedback connector link pins R1 to S3 amp pins R2 to S2 Connect a signal generator approx 5V 6kHz between pins R1 and R2 Connect an AC voltmeter between pins S1 and R2 At the power connector link motor phase pins V and W and then connect a low voltage dc supply to motor phases at power connector pins U ve and V W ve Adjust this voltage to give between 25 and 100 of motor rated current thereby causing the motor to turn to a preferred position Slacken the 3 screws 15 holding the resolver stator and then rotate it until the voltmeter gives a maximum reading Reconnect the AC voltmeter to pins S4 and R2 Make a small final adjustment of the resolver stator to get a minimum reading Retighten the screws disconnect the test socket the supplies the voltmeter and links let the brake if used be re applied Attach the protective shield 18 to the resolver and fix the enclosing cover 11 to the NDE
22. lationships must be marked with a marker pen or other suitable method before dismantling Drive end DE cover 3 to motor body 1 Enclosing Cover 11 to non drive end NDE cover 7 Non drive end cover to motor body Prior to resolver dismantling mark outside end faces of resolver stator 14 and resolver rotor 17 DISCONNECTION If servicing work is required on the feedback connector or if the resolver stator 14 is to be completely removed then proceed as follows Otherwise proceed to Section 4 Dismantling Undo the screws and prise off the rear cover 22 of the feedback connector to allow access to the connector pins If an appropriate SEM pin connection diagram is not available record the pin positions on the connector Using a special pin removal tool available from SEM withdraw the pins If it is necessary to remove the resolver stator 14 and its wiring from the motor completely remove 4 screws 25 and remove the feedback connector housing 23 from the enclosing cover 11 Remove 4 screws 12 and while carefully drawing the enclosing cover 11 off the NDE cover 7 draw the wiring through the hole in the enclosing cover 4 1 4 2 4 3 4 4 4 5 4 6 4 7 4 8 4 9 4 10 5 1 5 2 5 3 5 4 5 5 5 6 5 7 DISMANTLING If above procedures 3 1 3 2 and 3 3 are not necessary start by removing 4 screws 12 and partly drawing off enclosing cover 11 far enough to
23. lled motor technology HJ116 PARTS LIST 1 Motor Body 2 Motor Rotor 3 DE Cover 4 DE Cover fixing screws 5 Washers for DE cover fixing screws 6 DE Cover O ring 7 NDE Cover 8 NDE Cover fixing screws 9 Washers for NDE cover fixing screws 10 NDE Cover O ring 11 Enclosing Cover 12 Enclosing Cover fixing screws 13 Washers for Enclosing Cover fixing screws 14 Resolver stator Note that resolver is shown but that 15 Resolver stator fixing screws various types of encoders may be 16 Resolver stator clamping washers fitted Contact SEM for relevant 17 Resolver rotor servicing and setting procedures for 18 Resolver protective shield the particular type of encoder involved 19 Shaft nut 20 Feedback Connector multi pin plug 21 Feedback Connector rear gasket 22 Feedback Connector rear cover 23 Feedback Connector housing 24 Feedback Connector bottom gasket 25 Feedback Connector housing fixing screws 26 Power Connector multi pin plug 27 Power Connector rear gasket 28 Power Connector rear cover 29 Power Connector housing 30 Power Connector bottom gasket 31 Power Connector housing fixing screws 32 Wave Washers 33 NDE Bearing 34 Brake Hub optional 35 Bearing Clamp plate 36 Brake stator optional 37 Brake Rotor optional 38 DE Bearing 39 Shaft seal 40 Retaining Collar 41 Fixing Screws for bearing clamp plate 42 Washers for bearing clamp plate screws 43 Fixing screws for brake stator optional 44 W
24. make connections and links to feedback connector pins To avoid damage to these pins it is advisable to make such connections and links via a suitable separate test socket which mates with the feedback connector multi pin plug 20 and which has short leads connected to its sockets Alternatively appropriate pins can be made available for connections and links by withdrawing them from plug 20 as in Section 3 Disconnection If a brake is used it must be temporarily held off during this operation by applying a 24V dc supply across the brake terminals Undo 4 screws 12 and pull back the enclosing cover 11 to give access too the resolver With the above test plug connected to the feedback connector link pins R1 to S3 amp pins R2 to S2 Connect a signal generator approx 5V 6kHz between pins R1 and R2 Connect an AC voltmeter between pins S1 and R2 At the power connector link motor phase pins V and W and then connect a low voltage dc supply to motor phases at power connector pins U ve and V W ve Adjust this voltage to give between 25 and 100 of motor rated current thereby causing the motor to turn to a preferred position Slacken the 3 screws 15 holding the resolver stator and then rotate it until the voltmeter gives a maximum reading Reconnect the AC voltmeter to pins S4 and R2 Make a small final adjustment of the resolver stator to get a minimum reading Retighten the screws disconnect the test socket the
25. n Kent BR5 3QT England Telephone 44 0 1689 884700 Fax 44 0 1689 884884 E mail info sem co uk Internet http www sem co uk 5 8 5 9 5 10 5 11 5 12 5 13 5 14 5 15 5 16 5 17 5 18 5 19 6 1 6 2 6 3 6 4 6 5 NDE of the shaft press this collar along the shaft until the DE bearing 38 is hard against its shoulder on the shaft Also fit NDE bearing to the shaft Offer the NDE cover to the motor body and reconnect thermal sensor leads at their in line connector Also reconnect the earth lead to its terminal on the cover Fix the NDE cover 7 to the motor body with 4 screws 8 and washers 9 6 6 Place two wave washers 32 in the bearing recess in the 6 7 NDE cover a smear of grease or a tilting of the motor body will hold them in position If no brake is used fully insert the motor rotor into the drive end of the motor stator carefully locating the NDE bearing 33 into the recess in the NDE cover If a brake is used partially insert the motor rotor into the motor stator leaving adequate access to the brake connections Reconnect these leads at their inline connector and press them into a safe position The fully insert the motor rotor into the motor stator carefully locating the NDE bearing 33 into the bearing recess in 7 the NDE cover Locate the DE cover in accordance with marks made in operation 2 1 and fix this cover to the motor body with 8 screws 4 and was
26. necessary remove the brake rotor from the shaft Remove 4 screws 8 and pull back the NDE cover 7 from the motor body Disconnect the earth lead at its terminal on this cover and carefully avoid damage to leads passing through this cover Remove O Ring 10 and wave washers 32 from this cover RE ASSEMBLY Note As standard procedure during reassembly circlip shaft seal and all bearings and O Rings MUST be renewed to SEM specification Fit new O Rings 6 and 10 to DE and NDE covers respectively Fit new DE bearing 38 onto the bearing recess in DE cover 3 Fix brake stator 36 if used to the DE cover with brake leads uppermost using 6 long screws 43 and washers 44 to clamp the bearing If no brake is fitted fix bearing clamp plate 35 to the DE cover with screws 41 and washers 42 If a brake rotor has previously been removed from the shaft it should be pressed back onto the shaft next While holding the motor shaft vertically with the DE uppermost feed the DE bearing 38 onto its seating on the shaft At the same time if a brake is used carefully mesh the brake stator teeth with the brake rotor teeth and gently press the brake stator into position Using a sleeve and taking care to keep the collar square to the shaft press the collar feed the retaining collar 40 onto the DE shaft extension and while supporting the SEM after motor technology SEM Limited Faraday Way Orpingto
27. o position on the shaft Feed the DE bearing 38 onto its seating on the motor SEM feed motor technology SEM Limited Faraday Way Orpington Kent BR5 3QT England Telephone 44 0 1689 884700 Fax 44 0 1689 884884 E mail info sem co uk Internet http www sem co uk 5 8 5 9 5 10 5 11 5 12 5 13 5 14 5 15 5 16 5 17 6 1 6 2 6 3 6 4 6 5 shaft Then using a sleeve and taking care to keep the collar square to the shaft press the collar feed the retaining collar 40 on to the DE shaft extension and while supporting the NDE of the shaft press this collar along the shaft until the DE bearing is hard against its shoulder on the shaft 6 6 From the drive end insert the motor rotor into the motor stator locating the NDE shaft extension into the NDE bearing 33 At the same time if a brake is used take great care to mesh the brake stator teeth with the brake rotor teeth before the motor rotor is pressed fully into position Place the wave washer 32 in the bearing recess on the 6 7 DE cover 3 and then feed this cover on to the DE bearing While locating it in accordance with marks made in operation 2 1 fix the DE cover 3 to the motor body 7 using 8 screws 4 and washers 5 Press in a new shaft seal so that it is flush with the cover to the DE cover Fit a new circlip 42 into its groove alongside the NDE bearing Feed the resolver rotor onto the NDE shaft
28. y 1 Enclosing Cover 11 to non drive end NDE cover 7 Non drive end cover to motor body Prior to resolver dismantling mark outside end faces of resolver stator 14 and resolver rotor 17 DISCONNECTION If servicing work is required on the feedback connector or if the resolver stator 14 is to be completely removed then proceed as follows Otherwise proceed to Section 4 Dismantling Undo the screws and prise off the rear cover 22 of the feedback connector to allow access to the connector pins If an appropriate SEM pin connection diagram is not available record the pin positions on the connector Using a special pin removal tool available from SEM withdraw the pins If it is necessary to remove the resolver stator 14 and its wiring from the motor completely remove 4 screws 25 and remove the feedback connector housing 23 from the enclosing cover 11 Remove 4 screws 12 and while carefully drawing the enclosing cover 11 off the NDE cover 7 draw the wiring through the hole in the enclosing cover 4 1 4 2 4 3 4 4 4 5 4 6 4 7 4 8 4 9 4 10 5 1 5 2 5 3 5 4 5 5 5 6 5 7 DISMANTLING If above procedures 3 1 3 2 and 3 3 are not necessary start by removing 4 screws 12 and partly drawing off enclosing cover 11 far enough to give access to the thermal sensor leads Disconnect these leads at their in line connector With the enclosing cover hanging by
Download Pdf Manuals
Related Search