1、This in structi on sheet is for the field service of VLT ? F-Frame freque ncy conv erters.Secti on 1. Cover plates (Opti ons cab in et, rectifier cab in et, inv erter cab inetSection 2. AC line fuses (fuse-only option, located in rectifier cabinetSecti on 3. AC line fuses (in opti ons cab inetSectio

2、n 4. DC link fusesSecti on 5. Heat sink fansSecti on 6. Rectifier moduleSecti on 7. In verter moduleSecti on 8. Fan tran sformersSection 9. DC link in ductorSERVICE INSTRUCTIONSFOR F-FRAME DRIVESGENERAL TORQUE TIGHTENING VALUESFor faste ning hardware described in this Service ln-struction, the torqu

3、e values in the table below areused. These values are not inten ded for SCR, diode,or IGBT faste ners. See the in structio ns in eludedwith those replaceme nt parts for correct values.Table 1. Torque ValuesShaft Size Driver SizeTorque (Nm Torque (in-lbs M4T-20 / 7mm 1.0 10 M5 T-25 / 8 mm 2.3 20 M6T-

4、30 / 10 mm 4.0 35 M8T-40 / 13 mm 9.6 85 M10 T-50 / 17 mm 19.2 170FOR YOUR SAFETY1. DO NOT touch electrical parts of a freque ncy conv erter whe n AC line isconn ected. After AC line is disc onn ected wait 40 minu tes before touch ing anycomp onen ts.2. Whe n repair or in spect ion is made, AC line m

5、ust be disc onn ected.3. STOP key on control panel does not disconnect the AC line.4. During operati on and while program ming parameters, motor may start withoutwarning. Pote ntially lethal voltages are prese nt in side the systemen closure. High-voltage dc is prese nt eve n without ACutility-power

6、 conn ected. Do not en ter the system en closure uni ess trained and authorized to do so.WarningEach cab inet has safety covers in stalled to protect aga inst accide ntal con tact with energized parts. These covers must be removed to perform service on the freque ncy conv erter. The covers can be re

7、moved by rem oving the nuts (M5 that hold the covers on. See Figures 1,2 and 3 for safety cover locati ons. The covers must be rein stalled prior to re-e nergiz ing the freque ncy conv erter.Figure 2. Rectifier cab inet with safetycovers in stalled.Figure 1. Options cabinet with safetycovers in stal

8、led.Figure 1. Rectifier cab inet with safety coversin stalled.Figure 3. Inv erter cab inet with safety covers in stalled.To remove AC fuses located in the rectifier cab in et:1. Remove the safety cover located above the circuit breaker (or con tactor from the rectifier cab in et.2. Remove the nuts (

9、M10 that aresecuri ng the fuses in place.Note: The fuses must be removed seque ntially, front toback. If only the fuse located inthe back n eeds to be replaced,the front and middle fuses mustbe removed to gain access tothe back fuse. If additi onal access is desired, the left-most inverter secti on

10、can be removed.Refer to Sectio n 7 for in verterremoval in structi ons.Figure 4. Fuse location within rectifier cabinet(if fuses are the only power optio ns ordered.AC line fuses are opti on al. If the ac fuses are the only power opti on on the freque ncy conv erter, the ac fuses will be located in

11、the rectifier cab in et. If other power opti ons were ordered, the ac fuses will be located in the opti ons cab in et. See Figure 4 for the location of fuses in the rectifier cabinet and Figure 5 and Figure 6 for the location offuses in the opti ons cab in et.Secti on 2. AC Li ne FusesFigure 5. AC f

12、use location within options cabi-net.Figure 6. AC fuses within opti ons cab in et, close-up view.Secti on 2. AC Li ne FusesTo remove AC fuses located in theopti ons cab in et:1. Remove the covers from the opti ons cab inet to gain access tothe fuses.2. Remove the bolts (M10 that aresecuri ng the fus

13、es in place.Section 3. DC Link FusesFigure 7. DC link fuse locati on within inv erter cab in et.There are two dc link fuses per inverter. The dc link fuses for each inv erter are located on top of the inv erter.1. Remove the covers from the inverter cab inet to gain access to the inv erters and dc l

14、ink fuses.Figure 8. DC link fuse locati on within inv erter cab in et.2. To remove the fuses, remove the bus bars that are securi ngthe fuses (M10. See Figure 8.Section 4. Heat Sink Fans 1. Remove the panel that provides Array access to the fan by removing the six nuts (M5 that are securing the pane

15、l in place. See Figures 9 and 10.2. The fan cover panel may now be removed.Figure 9. Opti ons cab inet with covers in stalled.Section 4. Heat Sink Fans Array 3. Remove the fan electrical conn ector and the two nuts (M6that are securi ng the fan inplace. Refer to Figure 11.4. Reverse the procedure to

16、 reinstall the fan.Figure 11. Locati on of electrical conn ector and n uts.1. Remove the safety covers from the rectifier.2. Remove the two de bus barsfrom above the rectifier by re-movi ng the four nuts (M10 thatare securi ng each bus bar (twoon each end of the bus bar. See Figure 12.Figure 12. DC

17、bus bars located above rectifier module (red arrows pointing to nutsthat n eed to beFigure 13. Four conn ectors.3. Disc onnect the four white con-n ectors from on top of the rectifier. See Figure 13.4. Disc onnect the conn ector thatgoes from the rectifier to theMDCIC board. See Figures 14 and 15.Wh

18、ile rec onnecting, n ote that the conn ector is conn ected tothe left conn ector on the bottomof the MDCIC board.Figure 14. Conn ector on MDCIC board from rectifier.Figure 15. Conn ector on MDCIC board from recti fier, close-up view.Xbracket that is securi ng the recti-fier module in the back. See F

19、igure 16. Figure 16. Bracket securing the rectifier.Figure 17. Removal of the rectifier.6. Carefully withdraw the rectifierfrom the cab inet onto a platformthat is secured/locked. See Figure 17.Caution : The rectifier module isheavy (136 kg / 300 lbs, takecaution when handling it to prevent injury t

20、o people or damage to equipme nt.7. To re-install the rectifier, follow the instructions in reverse order.in front of the in verter module.2. Remove the AC load bus barsfrom the inv erter (M8. See Figure 18.Figure X. Bracket securing the rectifier.Figure 18. Bus bars on output of inv erter.20.4. Dis

21、c onnect the three (or two wire conn ectors from on top of the inv erter module. See FigureNote: The left-most inverter inthe cab inet will have all three cables conn ected. The otherinv erter module(s will have onlytwo cables conn ected.The wire conn ectors are different sizes, whe n re-i nstalli n

22、g thecables be sure to re-i nstall theconn ector into the receptacle of the same size.Figure 20. Wire conn ectors located on top of in-verter module.3. Disc onnect the ribb on cablefrom on top of the inv erter. SeeFigure 19.20.Figure 19. Ribbo n cable from MDCIC board.Figure 22. Back bracket.6. Disc

23、 onnect the back bracketthat is securi ng the inv erter to the cab inet (M6. See Figure 22.5. Remove the DC bus bars fromthe top of the in verter (M10. See Figure 21.Figure 21. DC bus bars.Figure 23. Removal of the inverter.7. Carefully withdraw the inv erterfrom the cab in et on to a platform that

24、is secured/locked. See Fig-ure 23.Caution : The inverter module is heavy (136 kg / 300 lbs, take caution when han dli ng it to pre-ve nt injury to people or damage to equipme nt.8. To re-install the inverter, followthe instructions in reverse order.Section 8. Fan Transformers 1. Disconnect the ribbo

25、n cable from the control card.See Figure 24. Figure 24. Control card ribbon cable. 2. Remove the MDCIC ribbon cable from each inv erter module. See Figure 25. Figure 25. MDCIC ribb on cable. In struct ion No: 175RXXXX 11 2007 PAGE 16 DRAFT COPY FOR REVIEWSecti on 8. Fan Tran sformers 3. Remove the r

26、elay conn ector from the pan el. See Figure 26. Figure 26. Removal of the rectifier. 4. Disco nnect the MDCIC panel by removing the screws (M5 from the four corners of the pan el. See Figure 27. Figure 27. MDCIC Pa nel. I nstruction No: 175RXXXX 11 2007 PAGE 17 DRAFT COPY FOR REVIEWSecti on 8. Fan T

27、ran sformers 5. Remove the MDCIC panel from the cab in et. See Figure 28. Figure 28. Removing the MDCIC pan el. 6. Disc onnect the electrical conn ector from the fan transformer. 7. Remove the nut (M8 that is securing the transformer to the pan el. The nut is located in the cen ter of the tran sformer