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  5. Installation Operation & Maintenance

AnsaldoSTS F-42 Installation Operation & Maintenance

Manual is about: DC/DC Converter

Summary of F-42

  • Page 1

    1000 technology drive, pittsburgh, pa 15219 645 russell street, batesburg, sc 29006 sm 5924 copyright © 2009 sm 5924, rev. 1 ansaldo sts usa, inc. June 2009 f-42 dc/dc c onverter asts usa part no. N16920401 installation operation maintenance.

  • Page 3: Proprietary Notice

    Notices sm 5924, rev. 1, june 2009 i proprietary notice this document and its contents are the property of ansaldo sts usa, inc. (formerly known as union switch & signal inc., and hereinafter referred to as "asts usa"). This document is furnished to you on the following conditions: 1.) that no propr...

  • Page 4: Revision History

    Revision history ii sm 5924, rev. 1, june 2009 revision history rev. Date nature of revision 0 may, 1981 initial issue 1 june, 2009 revised value of c3 in figure 4–1 copyright © 2009, ansaldo sts usa, inc. 1000 technology drive, pittsburgh, pa usa 15219-3120 645 russell street, batesburg, sc 29006 w...

  • Page 5: Table Of Contents

    Table of contents sm 5924, rev. 1, june 2009 iii table of contents 1 description...................................................................................................................................1-1 1.1 electrical..........................................................................

  • Page 6: List Of Figures

    Table of contents iv sm 5924, rev. 1, june 2009 list of figures figure 3–1. Plug connector pinning ...................................................................................................3-1 figure 4–1. F-42 dc/dc converter schematic diagram ..................................................

  • Page 7

    Description sm 5924, rev. 1, june 2009 1-1 1 description the f-42 dc/dc converter is a completely transistorized power supply for use in train control systems. The converter basically consists of an electronically controlled pre-regulator and an inverter with rectified and filtered outputs. The unit...

  • Page 8

    Description 1-2 sm 5924, rev. 1, june 2009 • overvoltage protection overvoltage protection is provided by a crowbar circuit comprised of scr-1 and printed circuit board cb3. The input voltage trip point is controlled by diode dl which triggers the scr-1 gate with input voltages between 95v and 105v ...

  • Page 9

    Principles of operation sm 5924, rev. 1, june 2009 2-1 2 principles of operation as an aid in understanding the theory of operation, refer to the schematic diagram shown in figure 4–1. 2.1 input filter power is supplied through a filter consisting of inductors l1, and l2, and capacitors c1 and c2. R...

  • Page 10

    Principles of operation 2-2 sm 5924, rev. 1, june 2009.

  • Page 11

    Installation sm 5924, rev. 1, june 2009 3-1 3 installation 3.1 mounting the converter can be mounted either horizontally or vertically on 7-3/8 " x 8 " centers with four 3/8 " bolts. 3.2 electrical connections electrical connections are made to a plug connector mounted on the converter. Connecting c...

  • Page 12

    Installation 3-2 sm 5924, rev. 1, june 2009.

  • Page 13

    Parts list sm 5924, rev. 1, june 2009 4-1 4 maintenance and troubleshooting 4.1 general maintenance consists of an occasional check of the output voltage. If no output voltage is indicated, check the input circuit for a blown fuse (fl, 10 amp slow-blow). To calibrate the output voltage, refer to sec...

  • Page 14

    4-2 sm 5924, rev. 1, june 2009 figure 4–1. F-42 dc/dc converter schematic diagram.

  • Page 15

    Parts list sm 5924, rev. 1, june 2009 4-3 6. Place a scope (dc operation) across the base and emitter of q1. Observe that not less than 1v and not more than 2v reverse bias is being applied during the off time of q1. The bias circuit, consisting of diode d3 and leads 1s and 2s of transformer tl, mus...

  • Page 16

    4-4 sm 5924, rev. 1, june 2009 circuitry) and is triggered on and off as the voltage across c3 rises and falls. A current limiting function is also provided to limit starting transients. 1. Inspect all soldered joints. 2. Attach a variable dc power supply to terminals 7 (+) and 4 (-). The maximum vo...

  • Page 17

    Parts list sm 5924, rev. 1, june 2009 4-5 3. For d4, use pins 1(+) and 2(-). The zener voltage at 0.020 amperes should fall between 40.8v and 45.2v (across d4 only). 4. If board cbc does not meet the specified requirements, replace with a board in operating condition. 4.5.2 optional surge protection...

  • Page 18: ∞

    4-6 sm 5924, rev. 1, june 2009 * ∞ = twisted pair figure 4–2. Cb3 voltage control board surge protection modification.

  • Page 19

    Parts list sm 5924, rev. 1, june 2009 5-1 5 parts list the parts for the f-42 dc/dc converter are listed in table 5–1, table 5–2and table 5–3. The tables are keyed to figure 5–1. Table 5–1. N451033-2901 parts list item no. Description part no. 15 transformer,reactor n436560 20 transformer, output n4...

  • Page 20

    5-2 sm 5924, rev. 1, june 2009 item no. Description part no. 310 capacitor,4000 mfd j701059 315 brkt capac mount j705089 320 brkt capac mount j705090 325 screw,10-32x1/2 fl hd j052091 330 capacitor,0.47 mfd j706152 335 holder,fuse hpf hpc j071890 340 fuse,10a., 250v j710137 345 scr-sst 8-32x1/2 pan ...

  • Page 21

    Parts list sm 5924, rev. 1, june 2009 5-3 item no. Description part no. 800 tape 2 in scotch 22 a773128 805 tape 3/4wx66 sco bd j773078 815 prtctr-thread 1-1/2" j703231 table 5–2. N451033-2902 parts list item no. Description pat no. 5 radiator m4511204601 50 collar insulating m436619 80 insert,rivnu...

  • Page 22

    5-4 sm 5924, rev. 1, june 2009 table 5–4. N451033-2904 parts list item no. Description part no. 15 transformer,r ctor n436560 20 transformer, output n436561 25 scr-10-32x3/4 flh ss j5252740112 30 washer,10 plate sst j4751200110 35 wshr-sst lock no 10 j4751210109 40 nut-10-32 hex sst j4802110105 45 t...

  • Page 23

    Parts list sm 5924, rev. 1, june 2009 5-5 item no. Description part no. 405 cap-capacitor j709202 410 term-ring tongue j731458 415 conn-plug 6 term j709174 420 conn-plug 9 term j706768 425 term f 1189-tl j731355 430 scr-6-32x3/4 filh ss j522161 435 recpt-faston pidg j726219 440 res-1.5k ohms, 25 w. ...

  • Page 24

    5-6 sm 5924, rev. 1, june 2009.

  • Page 25

    Parts list sm 5924, rev. 1, june 2009 5-7/5-8 figure 5–1. F-42 dc/dc converter parts location.

  • Page 27

    Rail team and technical support sm 5924, rev. 1, june 2009 6-1 6 rail team and technical support the rapid action information link team (rail team) is a group of experienced product and application engineers ready to assist you to resolve any technical issues concerning this product. Contact the rai...

  • Page 28

    Rail team and technical support 6-2 sm 5924, rev. 1, june 2009 end of manual.