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1. April 1979 B 79 500 2312 5 WABCO SERVICE MANUAL TIME CODE CONTROL SYSTEM Type L Form 506 and Type L Form 506 A MAINTENANCE INSTRUCTIONS UNION SWITCH amp SIGNAL DIVISION AMERICAN STANDARD INC Swissvale PA 15218 f TABLE OF CONTENTS PART I Page Diagrams for Reference ren es ee Recommended Maintenance Procedure 1 PART II Reshopping Procedure for Interchangeable Units and KP Polar Relays Mr DES General Procedure oooooooo Mechanical Inspection of Units and Included Relays er ER Style L Relays BE ae ree da aoe NER Style KP Polar Relays 3 Apparatus and Set up for Making Operation Timing and Voltage Tests on Complete Units 4 Thermal Cutout on 506 System Units pr A Thermal Cutout on 506 A System Units Serre 4 Code Timing 5 Tests of Units on Voltage Limits 6 PART III Field Maintenance Tests IRRE eet Sone ey ae 7 General ota RE NN I Timing of Units in Service Read 7 Field Inspection of KP Polar Relays Service Tests for Thermal Cutout in 506 A One ent IO 9 Plug Connectors uan ee PART IV Inspection Procedure for Control Cabinet 10 Office Storage Units PORE 10 Levers and Pushbuttons DEREN 10 Automatic T2. 10 Figure 5 KP Relay SN Diagrams PNE MI LIST OF TABLES Table 1 Approximate Release Time of Slow Release a aa a a 6 Table 2 Timing Table EUER ERFURTER IR 4 rd Table 3 In Service Timing of Office Units amp Field Units in DC Code Sections 8 Table 4 In Service Timing of Field Units as Measured at the Office for Coded Carriers Controlled Sections 8 Table 5 KP Polar Relay Calibration 9 Table 6 Relay Wiring Diagram Nomenclature 11 Table 7 Field Code Setting Connections 11 PART If the timing or calibration of the equipment is out side of the field inspection limits given in the tables in Part III the equipment should be removed from the field location and reshopped as directed in Part II Since traffic conditions vary so widely on different in stallations no specific reshopping schedule can be gen erally applicable However all field units on an installa tion should be brought into the shop after the first one to two years of service depending upon the density of traffic and given a detail check and inspection The condition of these units as shown by the first shop inspection will enable the railroad to set up a suitable reshopping schedule The office line coding units are subjected to more severe service than are the field units therefore it is recommended that the office line coding units be re shopped approximately twice as often as th
3. 246 8 Longs Add 1 to 2 to Count No Calibrate F G S_ PART Ill FIELD MAINTENANCE TESTS GENERAL At the time a unit is replaced the operator should make a complete operating check of the new unit to assure that it is functioning properly The field tests for coding units outlined in the fol lowiug paragraphs should be made periodically quarterly or semi annually to anticipate trouble before delays are actually caused It is also recommended that the main tainer make a periodic visual inspection of relay contacts and operation TIMING OF UNITS IN SERVICE As Measured From Office The timing of a field unit in service may be checked from the office by recalling indication codes and recording them by means of a cycle recorder with relay as shown in Figure 1 These recorder tapes should be checked against the values shown in the accompanying In Service timing tables Note that there is a separate able for In Service timing of field units on carrier controlled sections when the timing is measured at the office These values must be used to obtain a true indication of the timing of the field units under these conditions A sug gested form for conveniently recording timing data is in cluded in the back of this pamphlet The timing values covered by counts 1 2 5 6 7A 7B 9 10 11 12 and 13 in the table may be obtained from the recorder tapes of individual codes from the unit being tested The 1
4. TERMINALS LC UNIT LCS UNIT N 1 56l 56 wz 8 1 1 i an l i CE 20lI w 20 n c 1 xs Jon l 55 pm 3 penie 83 CYCLE KECONSER ZA aa pa orr j Fig 1 Cycle Recorder Connections to Code Units In addition to determining the timing of code units as shown in Fig 1 the cycle recorder may be used to determine release times of individual relays as illustrated in Service Specification 3701 under Release Timing Adjustment of Cycle Recorder If after continued use the cycle recorder gets out of adjustment it should be readjusted in accordance with instructions in Service Specification 3688 THERMAL CUTOUT ON 506 SYSTEM UNITS After the unit has been at rest for at least 5 minutes check the action of the CO thermal cutout by repeated coding starting switch up until the thermal unit stops the coding action This should require from 12 to 15 codes Note that the unit codes again after being inactive approximately 10 seconds and transmits two or three codes before again cutting out This test should be made with the field battery switch set at point 16 field voltmeter should read 16 to 17 volts If adjustment of the thermal cutout is required the silver contact strips forming the contact of the relay should be bent Never bend the bi metallic strip THERMAL CUTOUT ON 506 A SYSTEM UNITS A Timing Check Using Test Set After the unit has been at rest with CO de energiz
5. ELECTI 1 LTIP Line Battery d Repeat above tests for supe 10 to 15 inclusive Barme as above far th atep Trazamit todleatica eufea with Function Endi Fuarilon Istiratics should be STEP 9 I 1 1 Amps SWITCHES OFFICE SE SHORT N LO H i SWITCHES CONNECTIONS Line Tesi 3 with la os will be cation Switches positicosd for long and ohort Ugkied when their correoponding i EL c xiber Circuit Test Office s Transmit Ixiscatien codes Function Fonction Indication Lamps witches positicosd for lo atu 1 PYRAMID T FUNCTI 4 1 o Circuit Test Field o un Ewit heo poslittaed for Long and ehort erg erkennen cada code slaps Sa pesta are ys en l serio CONTROL SWITCH _ H 1 ER as dr 4 Unit Selection switch should ba set to agree with the type of urit being until the end of the code Bet Otfice Battery Swlich to pasitica 14 aad Same as for text 1 with Olies Ctr L gt On l 3 l ap test Sat Office Station Selection Gwitehes to IM Tha X relay la the office should Field Battery Switch to position 34 Check thai cali Test Switch ka positica 16 2 1 t I 5 Stallon Selection switches tar both cifice and field should be set 10 the Set Field Station Selection Switches to 345 operala to interrupl the code field unit transmita and recsires complete cod 1 1 24j u eadein mation call number Unicas ctberwise specified both office Transmit an indicailom code i he ers este m l STEP 11 2 Y jeld should be set io the same di
6. GAP ARMATURE SNAP ACTION THERMAL CUTOUT PLAN VIEW Fig 2 tips should have light barely perceptible between them In making adjustment to meet this requirement apply a bending tool to the heavy member which supports the bimetal strip to which the permanent magnet is attached applying it between the insulating blocks and the first rivets Never bend the bimetal strips in any way Check to see that the silver tips meet squarely Remove the mag netic shunt and repeat the timing check per paragraph GA C Timing Adjustment Make final timing adjustment if necessary by chang ing the air gap between the permanent magnet and its armature Apply a small bending tool to the straight por tion of the curved steel armature hold the contact firmly so the bimetal strip will not be bent and bend the arma ture toward or away from the magnet A very slight change in air gap makes a marked difference in timing To lengthen the time required to open the contact decrease the air gap to shorten the time increase the air gap Allow the full cooling period of 12 minutes before each timing check IMPORTANT When correctly adjusted the curved armature must not come in contact with the per manent magnet at any time during operation D Service Test Directions for field testing of the CO thermal cutout are included under Field Maintenance Test Part II of this pamphlet For Reference Only If the initial opening time of the thermal cu
7. Includes 1 7 1 8 and 1 20 A 2588 12 ANVIL Used with Tubular Rivets to attach Armature Bakelite to Relay ArmatureB s s en A 2588 72 6 LONG NOSE PLIERS Not shown 5 DIAGONAL CUTTINO PLIERS Not shown 3 SCREW DRIVER Not shown KEY AND CLAMP for compressing Spring on Push Turn Lever A 2580 02 KEY for Push Turn Lever assembly cece ee eee ess 8802 08 BENDER Right Hand for Contact Btrips sie A 2589 108 BENDER for Thermal Cutout Aa aih A 2586 84 i BENDER for KN and KP Relays A A 2588 68 SPRINO TESTER for LP 53 LP 58 and LP 70 Relay Bases A 2586 39 ARMATURE POSITIONING OAUGE for Biased KP Relay 2 Required A 2586 65 ARMATURE POSITIONING GAUGE for Stick KP Relay with 4 Transfer Contacts 2 Required o A 2506 65 ARMATURE POSITIONING OAUGE for Stick KP Relay with 2N and 2R Contacta 2 Required ces cee ce eee mah A 2586 66 TUNING WRENCH for Carrier Equipment ee 1 amp 2588 105 5122 p 13 14 e p E CETERAE WABCD OFFICE LINE gt CODING gt UNIT TERMINALS EM FIELD LINE CODING STORAGE UNIT TERMINALS OFFICE BATTERY SWITCH i 1 OF F IC E F ELD r e UP OPERATING TESTS FOR OFFICE LIHE CODING UNITS ti A CMM n sn8n ki 77 i 4 i 1 Connect uni into Tost Bet and position switches in accordance with paragr
8. extra field storage units the only tim ing required is SS relay count 7 using a correctly timed LCS unit 8 In units for 506 A system send a manual recall code and check the length of the 9th impulse 5122 p 6 Relay A Nomenclature elease Air Ga Inches Sa am l P rgo 0 015 0 002 0 002 07002 ma 0 002 l When measuring the timing of units in the test set the various counts given in the Timing Table can be de termined from cycle recorder tapes as follows Tape No 1 Having max number of short impulses Counts 1 and 2 Tape No 2 Having max number of long impulses Counts 3 and 4 Tape No 3 Having max number of long impulses Counts 5 6 10 11 12 and 13 Tape No 4 Consecutive Codes Count 7A or 7B Tape No 5 Consecutive Codes Count 8 Tape No 6 Manual Recall Control Code Count 9 NOTE Where adjustments required to obtain correct timing values for one test affect values previously checked the results of the previous tests should be rechecked to assure that they are still within the specified limits For timing of the field units in the installation see Part III of this pamphlet TESTS OF UNITS ON VOLTAGE LIMITS As an overall check to insure ample margin on the timing of the relays operate the field on 13 volts and the office on 13 to 24 volts and note that proper selections are made Then operate the office on 13 volts and v
9. impulses in last half of code impulses 9 11 13 15 Readjust 1L if necessary Check the timing of the long even numbered impulses in last half of code impulses 10 12 14 Re adjust 2L if necessary 4 To check the release time of LP remove the insula tion from contacts of relay LP and check timing of the long odd and even impulses in last half of code Readjust LP if necessary 5 Time the interval between two consecutive codes to check the cascade release times of relays LB and LBP Consecutive codes are sent by operating code starting switches upward In the field unit insulate MSP contact C5 in 506 system or B6 in 506 A system to eliminate relay SS for this test If the time between codes is incor rect readjust the timing of relays LB and LBP keeping as much time as possible in the LB relay To have office codes take precedence over field codes the time between control codes should be adjusted to ward the lower limits and the time between indication codes should be adjusted toward the higher limits 6 Check that relay LB will hold up when the unit is transmitting on 12 13 volts If it is necessary to adjust the LB relay to meet this requirement test 5 above should be repeated and if necessary relay LBP should be re adjusted 7 To check release time of relay SS remove insula tion from contact of relay MSP and time the interval between two consecutive indication codes with SS oper ating When checking
10. silver to silver multiple button type The field line and starting relays are the biased type and have two normal and two reverse independent contacts The contact open ing of this type of relay is approximately 0 030 The office line relay is che stick type and has two normal and two reverse independent contacts The contact opening of this type of relay is approximately 0 040 The field function relays and office traffic control relays are of the stick type and have four normal and four reverse non independent contacts The contact opening of this type of relay is approximately 0 050 All KP relays have two coils which may be used either independently or in series to suit requirements The coil resistances vary with requirements All KP relays are individually plug connected for quick and easy replacement Means have been provided in the relay case and plug connectors to prevent the plugging in of a given relay into any but the correct posi tion combination pin plate is associated with each pair of plug connectors The plate contains five pins in various combinations so that each separate piece number relay has an individual combination assignment Slots are milled in the base of each relay to match this assignment As a result none but the correct relay having slots match ing pin positions can be plugged into a given position in the relay rack The ten possible pin positions are numbered consec utively from left to ri
11. 1 13 15 Short 5 0 7 5 50 7 5 5 0 75 5 5 8 0 5 5 8 0 2 2 4 6 8 10 12 14 Short 3 5 6 0 3 5 6 0 3 5 6 0 4 0 6 5 4 0 6 5 5 9 11 13 15 Long 19 0 24 5 195 las lo 25 5 20 5 26 21 5 27 6 10 12 14 Long 15 5 21 0 116 21 5 16 5 22 0 z 92 5 18 245 7B Between Codes Field No SS a A li cas 62 5 67 5 683 Jes jed 69 66 71 jes 73 8 Between Codes Field with 55 74 1715 185 177 187 179 89 82 192 H x No Timing Required O pr rer rare ee E dd G ME so jes 9 0 113 5 9 0 13 5 9 5 14 0195 114 0 20 0 26 5 205 27 21 27 5 21 5 28 22 5 129 Ma SS Herne FEN DONE MUERE REF 11 No 1 Impulse Indication 12 3 5 7 Long 13 2 4 6 8 Long 16 5 22 0 17 123 5 17 5 24 0 18 24 5 19 25 5 Timing at other temperatures can be determined by jinerpalatinz values in the table above FIELD INSPECTION OF KP POLAR RELAVS The field function and office traffic control KP relavs 105 105 ohm or 120 120 ohm stick tvpe should be field inspected with approximatelv the same frequencv as standard relavs at approximatelv two vear intervals The sensitive biased relavs used as line and starting relavs in the field should have more frequent inspections It is suggested that thev be inspected once or twice a vear initiallv and that the frequencv of subsequent inspections be determined by the results of these initial inspections 5
12. 122 p 8 The office line relay is inside the office line coding unit and should be inspected at the time this unit is reshopped The field inspection should include a Observation of the general condition of relay operating parts visible through the cover glass b Check of calibration values If the observed condition warrants it or if the calibra tion values are outside the field limits as specified under Calibration the relay should be reshopped as specified in Part II of this pamphlet t Calibration KP relay cilibr dabs should be chased in a circuit similar to that shown in Fig 3 The calibration values POTENTIOMETER REVERSING RHEOSTAT SWITCH RELAY COMMON AMMETER SWITCH BATTERY Fig 3 should be taken on each coil separately in accordance with the accompanying tabulation on page 28 The biased relay should first be charged at normal polarity to approximately four times maximum pick up value and the current then gradually reduced until the relay teleases to determine the release value Open the circuit momentarily and then close it and gradually increase the current until the relay closes its front contacts to determine the pick up value Further increase the cur rent until the armature core pins touch the pole pieces to determine the full stroke value The stick relay should first be charged at one polarity to approximately four times maximum p
13. 6th impulse at the end of a control code followed by a second control code provides count 7A for the office unit The 16th impulse at the end of a control code or the 10th impulse at the end of a manual recall code followed by an indication code provides count 7B for the field unit Count 8 if desired can be obtained by having a second person at the field location send con secutive indication codes or can be obtained by taking the cycle recorder to the field location and connecting it to the field LCS unit as shown in Figure 1 Repeating in dication codes may be initiated by removing the wire from Post 42 of the LCS or S unit in question Units are ad justed for timing at a temperature of approximately 70 F The timing will vary somewhat with difference in temp erature Therefore timing records taken in service at temperatures other than 70 F should be corrected for temperature in accordance with the accompanying table If a tape shows a unit to be outside the limits shown in the proper timing table two additional tapes of the same code should be taken and if either of them shows the steps in question to be within the specified limits the unit may be considered satisfactory for service Any unit which these tests show to be definitely outside the spec ified timing limits should be removed from service and teshopped in accordance with Part II of this pamphlet 5122 p 7 Table 3 In Service Timing of Office Un
14. 84 UMI64375 UM273829 umi64393 UJ39069 A lt A 10 Al UM108099 UM177803 UMi72481 UJ82103 U139802 lla 12 13 14 115 18 PLATE T 575 WABCO CYCLE RECORDER TOOLS AND SUPPLIES FOR MAINTENANCE Order by Plate Piece Reference and Abbreviated Description Given in Heavy Face Type Only DESCRIPTION DWG nes DOUBLE PUNCH CYCLE RECORDER When orderiog state Installation for which required Used with 16 Step 504 Time Code Systems C 9299 3 SINGLE PUNCH CYCLE RECORDER When ordering state installation for which required Used with 14 Step Time Cade Systems 2s 6C 0299 1 DOUBLE PUNCH CYCLE RECORDER When ordering state Installation for which required Uacd with 16 Step 608 Time Code Systems C 0200 4 ROLL SIZE C PAPER FOR CYCLE RECORDER 10 per package PLIERS FOR REMOVING LAMP CAPS OFFSET SCREW DRIVER for removing Relay Armatures BENDER OFFSET tor Contact Springs seen A 2588 15 SWEDGE AND TWISTING TOOL for Adjusting Relay Armatures A 2585 05 ANVIL for Adjusting Relay Armatur88 A 1686 18 3 6 ELECTRIC SOLDERING IRON WITH STAND NO 22 B amp 8 GAUGE SOLID COPPER WIRE in color codo for wiring control machine and control unita Orders should specify quantity and color desired NO 20 B amp 8 GAUGE FLEXIBLE COPPER WIRE In color code for wiring control machine and control unit
15. E CODE CONTROL SYSTEM ki MOTE DOTTED LINES CAMMLCTIMG ROTART CONTACTS OF SWITCHES INDICATE CYCLE TIMER CONNECTIONS TMAT Tuta MEMBERS ARE OPLMAATED GV A COMMON ANAF T 3 ASSEMBLY Less i ue ede qe i wu i 2 ev wur apres 5122 p 15 16 Y UNIT SUGGESTED FORM FOR RECORDING TIMING DATA PIECE NO __ SERIAL NO STEP NO _ eu FC NENNEN RON pete pop Pe di IN SIT TAT aaa PP i A TP of Long and Short Code Steps measured in Cycles at 70 F with Local Batt 16 18 Volts Jordan Freg 60 Cycles See Notes Below f Location of Unit Mis 1 All tapes for field tests may be taken at the office To obtain timing with SS relay someone must be present at the field location to initiate consecutive indication codes However since the SS relay timing is not critical it need not necessarily be checked every time that field tests are made 2 Specification limits for allowable length of each code step are shown at the top of the column for the code step to which they apply These limits are specified in terms of cycles 60 cycles 1 second and based on temperature of 70 F When making tests actual temperature of unit being tested should be recorded Timing data should be corrected for temperature in accordance with table in Instruction Pamphlet U 5122 when actual temperature of unit differs from 70 F by more than 35 F When frequency us
16. RPP will be deenergized at the end of this test and must be picked up by having the operator send a control code to that Station PLUG CONNECTORS Plug Connectors are used on all of the code equipment where interchangeability is desired When removing a plug connector from a unit a small wooden pry about V4 xV x12 will be found handy To inspect a plug connector take an individual socket or female member or special test socket shown on plate T 575 page 12 and slide it over each wire spring in turn f the spring does not seem to make good contact insert Table 5 KP Polar Relay Calibration Relays received from the U S amp S Values at which 1 Co or readjusted in R R shop relays should he should be within these limits taken out of serv ice Relay Coils Pick up Milliamperes Contacta Relay Piece 2 D Milliamperes apamun EE ee l Nomendatire Type No O Ohma elease ax in ype pprox l E Location Res Max Min Full Stroke Pick up Release Opening Faaction Surel kosten mc d el and Stick 217122 12347 Lower 105 40 0 25 0 de n 55 0 Transfer 0 030 Traffic Control l A Field Upper 1070 5 25 3 75 6 5 175 65 1 0 2N 2 Rand ST Biased 191481 57890 Upper 1070 5 25 3 75 6 5 1 75 6 5 1 0 Ind 0 030 112 6 9 4 amp Counterelockwise gt 15 6 Upper 75 i Office 20 0 15 0 Clockwise gt 24 0 MOS
17. TA 2N 2R 0 040 R Stick 231412 12357 1i i Ind l 18 9 113 1 i amp Counterelockwise gt 23 9 Rt 29 4 121 6 Le Clockwise gt CAUTION When bit KP relays care should be taken to insure that no iron or steel is within two inches of the relay in a vertical irection 5122 p 9 the bit of a screw driver into the loop of the spring and twist first one way and then the other This will increase the tension The screw driver should be inserted in the two loops and not between the two loops in such a way that they become separated A properly adjusted con nector should require a force of not less than 1 Ib or more than 2 lbs to remove it from the socket If a con nector is found to be faulty in any way or if one side of the spring loop is broken off it should be replaced with a new one When placing a plug connector back on the unit care should be taken to see that all of the wire springs are properly started into the sockets before it is pressed into place To check KP relay plug connectors insert a metal strip 35 x14 x3 into each spring slot and note that plug connector spring bears against insert with reasonable pressure requiring 1 to 2 lb pull to remove insert A faulty plug connector should be replaced PART IV INSPECTION PROCEDURE FOR CONTROL CABINET OFFICE STORAGE UNITS
18. The relays in the Office Storage Units should be given the same inspection as the relays in the coding units This includes mechanical inspection contact adjustment and electrical calibration Adjustment will be easier if operating conditions permit the removal of battery from the storage unit during test CONTACT ADJUSTMENTS Standard Levers and Pushbuttons 023 MIN Push Turn Levers rs n 040 MIN FULL STROKE POSITION l 950 MIN FULL STROKE POSITION n 050 MIN 040 MIN E 025 MIN RELEASED POSITION RELEASED POSITION 005 MIN 005 MIN MiD POSITION MID POSITION NOTE Contacts identified by a horizontal black line on heel spring loop to be adjusted to approximately 0 010 overlap Fig 4 5122 p 10 005 MAX 4 005 MAX 4t LEVERS AND PUSHBUTTONS Contacts on levers and pushbuttons should have ap proximately the same adjustments as contacts on relays except that the openings should be as shown in Fig 4 AUTOMATIC TRAIN GRAPH At the option of the purchaser the control machine is equipped with an Automatic Train Graph which auto matically records occupancy of OS sections or other information on a continuous chart Complete instructions for the operation and main tenance of the train graph mechanism are provided in Instruction Pamphlet U 5463 Copies of this information are supplied with each Automatic Train Graph NOTE Instruction Pam
19. YSTEM Office LC Unit PC relay contacts A2 and C2 continuity contacts Field LCS Unit S relay contact Bl continuity contact M relay contact C3 These contacts have special adjustments These adjustments as well as those for continuity contacts are listed and explained in Service Specification 3701 under Special Contact Adjustments STYLE L RELAYS The Style L 1 and L 3 relays used in Time Code Con trol Systems are direct current neutral relays Style L 1 relays are equipped with a round armature and are ordinary acting Style L 3 relays have a square arma ture and a double magnetic circuit and therefore are adaptable as slow release relays when shunted by a rec tifier These square armature relays are employed principally for code impulse timing These Style L relays are housed in groups in sheet metal cases Those groups used at the field locations field line coding storage units and field storage units and the group in the office which is common to all the stations office line coding unit are plug connected for conven ience in changing out the units Generally the individual Style L relays are not plug connected There are two methods of designating the relays in the units as to nomenclature and piece number On relays built prio to the middle of 1945 the nomenclature was stencilled on the front of the armature Relays built since that time carry a separate nomenclature tag fas ten
20. aphs 1 2 2 and 4 onder General 1 e d FIELD STORAGE UNIT TERMINALS Then proceed with operating Leste as follows Alter exch i H 1 np A Galt Da sed TESTING PROCEDURE test switches should be returned to normal 1 OPERATING TESTS FOR FIELD LIN CODING STOBAGE UNITS i Fr i u I 1 i GENERAL i hn pad og tet in A ch rte A and so ma 1 Q V 214 M 14 2022 24 i b oii I i 1 i 1 Apply plug connectors A and B to Office Line Coding Unit and plug n proceed eparallog testa as ferien T test Puiicinh shaha returned carnal position tal x t i connectors C D E 2nd F7 to the Field Line Coding Biorage T uf Es i P 1 Unit Appir plug connectors G amd H to Ihe Field Storage Unit E a l 2 4 1 7 x H 1 1 2 Line Currecl Settings Except where otherwise noted all tests should Set Station Selection Switches to 236 345 432 Note that ai the end of each control E c c de i i be made with Line Battery switch En position 1 Ur corren Se Bat Btation Belectinn Switebes to 245 357 and Hots hel a Ike end each costrol 87 and 678 in sequence Set Office Circuit code the 16 relay la the field LOS 8 t gt p un 1 1 1 4 0 MA when eot coding and 32 MA during indiention codes When A068 tn Bet Office Circuit Test 2 Test Switch to the 16 position Transmit c n Unit picks up Note that at the end of 3 f VOLTMETER 23 VOLTMETER 5 l peqeunce code th
21. ary the field from 13 to 24 and note results Use codes 234 and 678 for these tests wasco Table 2 Timing Table TIMING TABLE Time Code Control System Type L Forms 506 amp 506 A Timing with Units Connected Test Set Timing in Cycles 60 Cycles 1 Second Tet Conditions Local Battery 16 18 V Nominal Line Current Temperature Tw F Approx 3 5 7 9 11 13 15 Shorts ve 2 4 6 8 10 12 14 Shorts 91 13 15 Tones Without LP Between Consecutive Todes ce Consecutive Codes Sth Tes of f Manual Recall Code No Timing Required No 1 Impulse Control No 1 Impulse Indication 8 5 7 Longs imi ithin Retime When Timing With Necessary Adjustments Timing Limits Operation to Obtain Timing To These Measurements Requires No an Adjustment Required To Obtain Timing Time T Relay Remove LF on Insulations Remove LP Contact Insulations Insulate MSP Front Contact C5 or B6 Insulation Operate Manual l Recall Button 57 These Values Are For Reference Only z Add 2 ta 4 to Count No 5 DIEA Add 4 to 6 to Count No 1 Add 1 to 2 to Count No 5 6 Calibrate T amp Chain Relays Time 1L Relay Time 2L Relay Time LB amp LBP Relays i Time LB amp LBP Relays Remove MSP Contact Time Relay Time Office M Relay When Values Exceeded Calibrate iL amp 2b a Calibrate 1L 2L LP LB LBP Calibrate F G 8
22. at ga En 1 i 1 cate ihe position normal or reverse of the relay 8 chain relay code step ol control code E Ui i 1 11 Function Indication Lamps 9 to 15 will be illaminated when their cor d Check cf delivery 6 Place Office Circuit Tent Switch to posi Q Office Tem lamp should be lighted Genaral Circuit Tests 1 i 1 responding indjeation code steps are long They will remain dark when circuit tion 16 Transmit na indication code on 16th step of Lodiration code fa 3 Selection Circuit a Bet Station Selection Bwitcbes to 013 Set a Tee 58 lump should flach on Bth FUNCTION FUNCTION 1 H i a thelr stepa are chort Check of E pick Place Office Clrevil Test Switch to pasi e Office Test lamp should be lighted for Pyramid Unit Mm Circult Test prie ds 35 position sep d all codes The run Text CONTROL SWITCHES INDICATION SWITCHES j Ae 12 All unita should be timed and adjusted in accordance wilh Instruction up circuit tica 21 Transmit control and indication en first step al tar code i ransalt control Indieatien codes mp chould be lighted cn Sth ciep of i STEP 9 i 78 Pamphlet U 5122 The follow ational checks codes M Indication codes f 5 1 i o ng operational c should be made ees re i i after s ualt bes been properly Umed end adjusted Check of carrier 0 Place Office Circuit Tast Switch to post f Office Tast lamp should be lighted b MSP back contact fo Set Flald Circuli Teal Swit
23. ch to positiga 6 a Field Test latap should flash on d d 1 gt 4 ee i contatta on T relay Trassmii control code Note Line Teat mains energized during this test Pyramid Unit Term 61 Transmit central and Andicalica codes first station selection step of any code gt STEP 13 i 4 Switch should be wired as shown to test f E stick circuit for 1 Set Field Circuit Text Swilch Lo position 82 11 Tbe Field Tesi lamp should be UR 4 Er LAMP PES gano 1 ra 1 4 B x agio aan Se Pyramid Unit Term 09 Trassmit control and Indication codes Mghted except during the firsi Stadien NASE gun f 4 E coe n s CIRCUIT STEP 14 T H shown connect a jumper between posta 42 and salection wep pronus i Cos LINE rs 2 for thla teat Tant sets wired per view 11 Check cf Storage Unit Oper Connect a storage unil to the test set set Unit Same as for 2 and 3 above NN TEST SWITCH 4 TEST SWITCH iE N ENS A will teat Pe 237807 or Pc 238799 unita sling Circulls la L C Unit Selection Switch Lo S and repeat tests 3 and 3 1 STEP 15 STEP 15 withoul using the jumper but will rot com above H A 2 T l a 1 1 pleisiy teni A bc 368010 unite 1 il 1 1 V A L Check of R locking U Operala Line Test Switch to position 3 and U The office R relay should cper 8 8n m and Ammediataly back to position 3 als reverse counter clockwise and i 1 CONTROL M t after epproxizat
24. e 18 relay in tha fold L C S l o 209 wb i ea l alles for testa for operation with high line curren should ba mada Switch to the 18 position Transmit coatrot ualt picka up Note that ai the end of trol aad indication codes each indication code the Office Test i i 1 1 lt tery switch Is position 2 Line current will be 72 MA end imilcatlon codes each Indication code the Office Test i l Ec TE i when noi coding an 172 MA daring indicatica codes Lamp lights Operste Field Function Contral Switch to tha Obsarve tii the Lang function po 358488 1 E l 4 i i 3 Exrcept where ctherwize speci led ali tesis hold be made with s2 Operate Fie Function Controt Switch to the Otaerre thai the Lang Feactica poattjen Transmit a control code with the Oth sition lamp la Libaminzted ad 1 N i 1 lector switches In positions called for below 9 position Trenamit a contre code with Gth Paslilon Lamp is Htuminated step long er A i i i i SWITCH POSITION Moins d MEME Transmit a control cole with Oth step short erg re function po S MM d u 7 o 1 Office 15 Trarzmit a control A Short Ctsarva Sort Function i 4 sition tilumizated i 17 STATION 1 FUNCTION w SA FUNCTION i STATION i 1 a aaau Position Lamp is Mamizsted Repeat above tests for steps 10 Wo 15 Inclastes Same un above for Sth step 1 SELECTION INDICATION LAMPS POSITION zu l SELECTION MULTIPLE eoa d kd l l a
25. e field units 5122 p 1 PARTIE RESHOPPING PROCEDURE FOR INTERCHANGEABLE UNITS and KP POLAR RELAYS Office Line Coding Units Field Line Coding Storage Units Field Storage Units Field Pyramid Units GENERAL PROCEDURE The following procedure is recommended for re shopping the interchangeable units and KP polar relays Detailed information is provided in the paragraphs fol lowing the tabulation below 1 Connect unit to the Test Set and take cycle recorder tapes as record of condition of unit when removed from service 2 Mechanically inspect and clean the units and in cluded re avs 3 Check the electrical calibration of the Style L relays 4 Check the electrical calibration of the Style KP polar relays 5 Reconnect unit and KP relays to Test Set and pro ceed as follows 6 Take cycle recorder tape to determine condition of timing 7 Make timing adjustments if required 8 Recheck electrical calibration of relays readjusted to obtain timing 9 Test unit for operation on variable circuits as outlined on Test Set diagram 10 Test unit for operation on voltage limits 11 Check operation of CO thermal cutout _ 12 Take final tapes of codes for record of timing Sign and date the record and preserve for future ref erence 13 Clean and seal the unit MECHANICAL INSPECTION OF UNITS AND INCLUDED RELAYS Inspection From Back of Unit 1 Inspect wiring of equipment and top plate for e
26. ead from right to left with No 1 space at the Field Code Setting Connections right For Sending Codes For Receiving Codes ann Connect i Toes Connect Connect Connect Connect NN ost 70 ost Post 45 ost ost ost 40 Table 6 Relay Wiring Diagram Nomenclature Number to to to to to to Post Post Post Post Post Post DE EEE Relay as shown on Wiring Diagram Wired Accord ing to Color Code Contact Arrangement Rear View of Relay Relay as shown on Circuit Plan Coll Common Coil Control Only the heel contact members on the circuit plan are numbered and may therefore be identified on the wiring diagrams by their positions as shown in the above ex ample A color code scheme is used for wiring and both solid and flex wire are used Flex wire is identified on the wiring diagrams by a letter F after the color On any one relay no two circuits have the same color of wire KP polar relays have their contacts numbered as shown below On those KP relays which have independent contacts 1 and 3 are normal contacts while 2 and 4 are reverse contacts When field pyramid units are used other code setting connections are required These are given in apecial drawings 5122 p 11 uN I 57 N L o a gt 0 a Z lt U JJ E 0 Qc ul a Qc a L gt OQ PLATE T 575 UN102948 UN231678 UJ30826 107398
27. ed for at least 12 minutes set the field battery switch at point 16 the field voltmeter should read 16 to 17 volts and check the timing of the CO by setting the line test switch to position 4 and operating the field starting switch The CO should open its contacts in from 100 to 140 seconds after operation of the starting switch If the timing is within these limits no adjustment should be attempted However if the timing is not within these limits the CO should be adjusted to open in a nominal time of 125 seconds Adjustment should be made by following the procedure outlined in paragraphs B and C B Contact Spring Adjustment Check To determine whether the contact spring members have become misadjusted place a small magnetic shunt such as soft iron or transformer steel not more than 0 013 thick in the air gap across the permanent magnet poles opposite the curved steel armature both of which are attached to the extreme ends of the contact members See Fig 2 When the contact tips just make there must be a small air gap perceptible between the steel shunt and the permanent magnet curved armature With the shunt in place practically all contact pressure due to attraction between magnet and armature is relieved and the silver BENDING PERMITTED BIMETAL STRIPS DO NOT BEND HEATER ELEMENT SILVER CONTACT TIPS BENDING PERMITTED PERMANENT CURVED MAGNET STEEL AIR
28. ed in obtaining timing data is other than 60 cycles per second specified timing values should be evaluated in terms of the new frequency as follows Specified timing values X new frequency 3 If the timing of a particular code step is within 1 2 cycle T the limits take a second tape and record the longest count mm teeter Between dH y Consecutive Codes 9 e l e TS 45 45 45 Control Codes Bae 2 REMARKS x naa Y l 52213 Such as unusual conditons TE zoe l o 50p 3F Bus e a e A a Values shown are those obtained when unit is in service on a D C code line or when timing is measured at field For timing of field units measured at office for carrier controlled sections see proper table under Field Maintenance Tests e OI 5122 p 17 18 Mn B na kawta en 1 i i 4 An American Standard Company UNION SWITCH amp SIGNAL DIVISION WESTINGHOUSE AIR BRAKE COMPANY Swissvale PA 15218
29. ed to the front of the relay On these relays the piece number of the relay is stencilled on the tag holder and may be seen by removing the tag from the holder In both cases the piece number of the relay is stencilled on the relay backstrap below the contacts Also in both cases the piece numbers and nomenclatures are shown on the wiring diagram for the unit WABCO Calibration Style L relays should be repaired readjusted and recalibrated when necessary in accordance with Service Specification 3701 STYLE KP POLAR RELAYS The Style KP relay is a polar direct current two position relay Two differently operating types of relays are provided namely stick and biased The stick type relays are operated into alternate positions normal or reverse by opposite polarities and the contacts remain made in the last operated position when the coils are deenergized The biased type relays are operated into the normal position by normal polarity but the contacts return to the reverse or biased position when the relay is deenergized and remain in that position when reverse po larity is applied Thus the biased relay functions similar to a neutral relay except thatit will operate on only one polarity All KP relays are individually housed in bakelite cases with all operating parts fully enclosed and sealed All contacts are visible through the front cover glass Contacts are moulded in bakelite and the contacts are of
30. eh to position 36 b Field Circuit Text lamp should be ou Mae m I rese circult tion 4 Place Line Test Switch to position oa 16th step of control code 3 to post 38 Transmit zn indication code lighted contizagusty except during in 1 1 i 1 Transmit control code dication codes i Neel E i t return Line Test Switch to position 3 3 ua Bet Field to 5 Field T a i Le E pick up circuit fe Pie Irczit Test Switch to position 51 c eat Lamp should light cn d E es T r a Check ct M front e Place Office Circuit Test Bwlich to post g Office Test lamp should bs lighted for Pyramid Unit Transmit control aad Ladicailon codes lat step cf any code t 1 s ON i l couiet tiorm 51 too 57 Transmit Control code daring conet cote 4d A and B hack d Set Field Circuit Test Swlich to poatilons 6t 4 Field Teri Limp should flach dar t ahe gt l la I Check o LER trout a Place Office Circuit Test Bwitch to posi b Office Test Lamp 09 be lig tod E contact circuits and 62 ia turo Transmit control and Indien ing all cotez with switch in alther po 4 1 STEP 12 i 1 I Contact Tarm sg tion 59 Transmit codes Garing any code Terms 8i and 61 Lion codes la each case sitlca a i gt es 1 i ik ra 1 1 1 Check of Line bleeder I Place the Line Test Switch in poeition i Mote that the field Line relay ra a pick up circuit for a Set Field Circuli Test Swit
31. ely one second re STARTING SWITCH NS v tura to the normal clock wise posi f TO CYCLE 4 y Y 3 tjon i e 3 se i diis i u Cos t Check of Manual r ft Opertia Contro Starting Switch and Re Nous that only 10 steps af the con AME he call circulis call Button gimultataougly trol code are tranamitted i ten A f 206 A nalts only 1 1 4 5 y INDICATION i 4 S ll STARTING SWITCH 1 i 1 LINE CIRCUIT b j 1 Ge disa a SAT BAN RS kal met E CIRCUIT DIAGRAMS FOR S08 506A um 2 i LINE TO i 3 i OFFICE LE AND EURE nn TIT TA BM TASI l ER RR Mp E BATTERY SWITCH E epg re E ee age ee i OPERATING TESTS FOR FIELD STORAGE UNITS FIELD LCB AMD UTA ecc T TE O Y BS A es i 1 Connect into Test Set with L C and L C S pats und position awitches in accordance with paregrapha 1 2 ee N Ceu modd 1 and 4 ander General Then repent Tesis 2 3 4 und 10b udove i ui nenn nn men man TAA fem i OR PLUG CONNECTOR AMD CABLE WR BCE CODZ AM 670 871 las VIEW B TO TEAT FIELD FI PDA PANEL WMG En nenn CER BM 988 48 cincuiT PREVIOUS t Field Pyramid Unit circuita are checked by spplying batlary ta cartaln kormizals 10 opernia relays and by FOR TEAT CABIMIT COMPLETE SEE DEAS 3A B i YO REVISION 13 t checking other circuite with Busser Test Lamp etc These circulla ara abown on drawing DIJA7 6 3 or l A L et ather i CIRCUIT DIAGRAMS TIM
32. ght looking at the front of the relay and the numbers remaining on the base of the relay after slots have been cut identify the code combination for that relay Reshopping When the field inspection see Field Maintenance Tests in this pamphlet indicates the necessity for it the KP relays should be reshopped according to Service Specification 3623 5122 p 3 If during reshopping the specified calibration values cannot be obtained or if any of the relay operating parts such as coils contacts connecting springs etc require replacement the relay should be returned to the factory for repair DESCRIPTION OF APPARATUS AND SET UP FOR MAKING OPERATION TIMING AND VOLTAGE TESTS ON COMPLETE UNITS Test Set Complete test set hook up is shown on Drawing D2547 Sh 5 in the back of this booklet In addition to the test set hook up the drawing shows complete inter connections between test set and standard C T C units A tabulated procedure for testing is also given Cycle Recorder This instrument provides a convenient means for measuring and recording short time intervals such as code impulses The two punch recorder gives a complete record of a whole code on one tape Odd numbered im pulses are recorded by one punch magnet on one line and even numbered impulses by the other punch magnet on a second line as shown below When the tape record shifts from one line to the other chere should not be an overlap of more than o
33. gits a ry 10 a l Repeat above with ietd ost to 340 Game as shore Ba B 4 a 1 a Mery Switch to posilica 14 Check that field 1 1 1 jes Zu kl en nn may by motneutarliy de Set Office Battery Switch to position 14 and Base us lor test 1 with Oflice Circuit vali transmits and receives complete codes ca poss preaslaz pading starting Field Battery Switch to position 24 and check Test Switch in the 16 position statica Selections 357 and 468 4 du i d y 424 7 Consecative control or indication codes may be Iniliated by operaling that office wit brensecita and receives complete Operation High Lise Operate Line milch Lo pont tor al i c l i las the corresponding starling swilch to the up posillen codes on station zelecticns 337 and 403 Then P ma repent testa iasa du 4 es 1 and Same se 1 1 1 aep 20 B Conirol code steps far function control are long or short io accordance field Batte Switch to cepo Centrol Code Preference Sat Line Test Switch to tse poatliva Trara Tbe CD ralny should pick up on Ike ih the positions of the Function Control 8 TT n l i sees d ur i STEP B 1 4 I 0X a issir air aac paren ismar Thans ken check that office unt transmita and recaives Circa mit an indication cade first step to Interrupt the code A d i i e 3 are io bier A l A Short when their respective switches are io tbe left ES codes on station selecilcna 357 and Btaltoan Lockout Circuit Set Lisa Text S
34. ick up value and the current then gradually reduced to zero Reverse the polarity then gradually increase the current until the relay reverses position to determine the pick up value The relay should go to full stroke at this same value This calibration should be obtained on both polarities with operation to both normal and reverse positions The relay should remain at full stroke when deenergized SERVICE TESTS FOR THERMAL CUTOUT IN 506A UNITS lf desired the CO timing may be checked at the field location under service conditions provided it is permissible for the station to be inoperative during the time of the tests To check the CO timing under service conditions remove the field R relay from its plug connector for the duration of the test remove the ST relay from its plug _ connector and making sure that the unit has not coded for at least 12 minutes replace it The time from replace ment of the ST relay until the CO opens its contacts should be within the limits of 100 to 140 seconds pro vided the field battery voltage is 16 17 volts Under this test the M relay will be picked up whenever the CO is energized Therefore operation of the CO can be fol lowed by observing the operation of the M relay CAUTION If the installation is equipped with Field Station Disconnect a jumper must be connected between terminals 47 and 18 on the LCS unit plug con nector Also the Disconnect relays RP and
35. ine Coding Storage Units 91 to 17 19 20 71 92 94 case 92 to 17 19 20 71 case 17 to 71 case 94 to 19 20 case 17 to 19 20 case 71 to 19 20 case 19 to 20 case 20 to case 2 Inspect all connections for tightness and proper soldering 3 Inspect mounting of equipment on mounting strips for tightness 4 Inspect contact stacks to see if any are loose Inspection From Front of Unit 1 Inspect and clean relay armatures cores and back straps in accordance with Service Specification 3701 for Style L relays 2 Inspect relays for burned or pitted contacts and check contact adjustment With the exception of the contacts listed below it is not necessary to gauge and adjust each contact accurately On each relay one con tact which meets the values specified in Service Specifi cation 3701 may be used as a guide in making a visual comparative check of the adjustments of the remaining contacts Each of the contacts listed below should be accurately gauged and adjusted See wiring diagrams for piece numbers of these relays On relays with nomencla ture tags the piece number will be found on the tag holder under the tag All BT contacts Identified by black line on heel springs All Continuity Contacts These contacts may be 506 SYSTEM Office LC Unit PC relay contacts B2 B5 A5 and C5 Field LCS Unit MSP relay contact A2 continuity contact M relay contact C3 506 A S
36. its and Field Units in D C Code Sections Values in Cycles at Various Temperatures f 60 No Timing Required No Impulses 01 257 911 1415 Short 2 24 6 8 10 12 14 Short 5 911 13 15 Long 6 10 12 14 Long l 7 A Between Codes Office ER aBa Between Codes Field No SS 58 5 8 Between Codes Field with SS 7 9 l 9th Impulse of Manual Recall Code EM meer f a d f usa man arm dM 19 5 125 5 20 126 120 5 126 5 21 27 22 128 a me 10 No 1 Impulse Control 11 No 1 Impulse Indication 18 5 12 357 Log NN 246 8 Long a 70 F SR ME E Count a ENE ORE ES een Y cc d 1 1 aa nm cr A i III 1 5 99 e a kaaa Sa 1 em o a a 1 0 l Dd 8 5 12 5 8 5 12 5 8 5 12 5 9 0 13 0 9 0 18 0 117 5 22 5 18 24 j18 5 24 5 19 25 120 26 Timing at other MH ean be determined by interpolating values i in the table above In Service Timing of Field Units as Measured at the Office for Coded Carrier Controlled Sections Values in Cycles at Various Temperatures f 60 10 70 F 35 F 15 F 0 F Count A E m AS MEC VOCE ar ale en No Impulses Min Max Min Max Min Max Min Max Min Max 1 35791
37. ne perforation This overlap will occur when the shift in the record from one impulse to the next occurs just as the A C timing wave reaches the point where both punch magnets will operate An over lap of more than one perforation or loss of perforations indicates that the cycle recorder needs adjustment The tape record below shows a correct tape In read ing a cycle recorder tape count each perforation as 14 cycle Disregard the overlap punch in the count 4 4 1 1 1 i 3 1 3 23 35 43 OVERLAP a A a xii a d A a lt lt 4 e 3 4 5 1 1 1 1 1 2 1 23 33 4 a A E lt E lt q m A A 1 2 3 4 5 To obtain the timing in terms of seconds divide the recorder reading by the frequency in cycles per second of the power source used When the only AC source available has a voltage of 220 volts the recorder may be used by connecting a 1500 ohm resistor in series with terminal CX Cycle recorder tape is National Cash Register Tape Size C Ref 2 Plate T 575 or it may be bought at any National Cash Register Supply Store Cycle Recorder Connections Figure 1 shows Cycle Recorder connections for measuring the timing of units either in the multiple code line installation or in the Test Set The right hand punches are for odd numbered pulses and the left hand punches are for even numbered pulses 5122 p 4 oh TJ ic zer 4 l l IA ME iin Y 110 vf A C CABINET OFFICE FIELD 4
38. numbered chain relays 2 4 6 8 In each case the time of LP is added to that of 1L or 2L to produce the long impulse at the transmitting station At the receiving station the time of Li does not enter into the registry of the long step Conditions and Set up for Checking Timing When timing checks and adjustments are made with the unit operating in the test set up timing shall be meas ured with unit sending codes under normal line current conditions local operating voltage of 16 18 volts D C and nominal temperature 70 F The procedure shown on D2547 sh 5 should be followed Order of Making Timing Measurements and Adjustments in Shop If it is necessary to change the timing of any relay the air gap stroke etc should be adjusted as illustrated in Service Spseilication 3701 After making any timing adjustment the electrical calibration of the relay should be rechecked 1 Check the timing of the short odd numbered im pulses If necessary to correct timing adjust T relay 2 Check the short even numbered impulses If in correct check stroke and contact adjustment of relay T and counting chain relays Resistor R4 in 506 system or T B in 506 A system can be inserted or cut out to further vary timing 5122 p 5 3 Check the ia time of IL ind 2L To do this insert a piece of paper to insulate contacts A3 and C3 on LP relay thus eliminating the LP relay from the timing Check the timing of the long odd numbered
39. phlet U 5463 describes and illustrates train graph mechanisms manufactured subsequent to January 1946 Instructions covering earlier train graph mechanisms are provided in Appendix I of Instruction Pamphlet U 5121 4 TM e 5 GENERAL INFORMATION Relay contact stacks are numbered A B C D E from left to right facing front of relay which in the type L relay is the armature end If a space for a stack is left PART V KP RELAY KP RELAY AS SHOWN ON CIRCUIT PLAN t 1 2 2 vacant the space is lettered as if the stack were present T Contact spring members are counted from top to bottom ii Y E 1 4 N a a f k oL l only the members appearing in the stack being counted Fr Coil connectors are counted as a contact member unless they are in the same space with the contact 2H 2R nu 3P y 3N b In soldering connections wireman faces rear of the c 7 relay so that his lettering is from right to left with A a Zum 4A stack at the right No 1 being top member of each stack Relay Racks The relay spaces of each strip are num CONTACT HUMBERING VIEWED FROM FRONT bered from left to right facing front or relay armature end Figure 5 of the rack or control unit Relay mounting strips are lettered A B C D E F from top to bottom Wiring diagrams show the rear of the relay rack con Table 7 trol unit or control panel hence the wiring diagrams should be r
40. rain Graph ee scd PART y General InformatioN oooooo L 8263 TI Field Code Setting Connections 11 Catalog Plate T 575 nee 12 Diagrams for Reference 506 506 A System System Circuit kk i rm Line Coding e h D 2547 Sh 1 Sh 11 Circuit Diagram Field Line Coding Storage Unit D 2547 Sh 2 Sh 8 Circuit Diagram Office amp Field Pyramid Unit D 2547 Sh 3 Sh 9 Graphic Code Chart D 2547 Sh 4 Sh 10 Circuit Diagram Test Set D 2547 Sh 5 Sh 5 Wiring Diagram Office L C Unit C 9362 Sh 523 Sh 1919 Wiring Diagram Field Storage Unit C 9362 Sh 524 Sh 868 Wiring Diagram Field L C S Unit C 9362 Sh 525 Sh 869 Wiring Diagram Field Pyramid Unit C 9362 Sh 526 Sh 526 Circuit and Wiring Diagrams for Control Machine are special for each installation Includes panel wiring terminals and connecting frame plug connectors and storage units Only Test Set circuit diagram is included with this pamphlet RECOMMENDED MAINTENANCE PROCEDURE It is recommended that Field Maintenance Tests be made at regular intervals as outlined in Part III of this pamphlet LIST OF FIGURES Figure 1 Cycle Recorder Connections to Code Units 4 Figure 2 Snap Action Thermal Cutout Plan View 5 Figure 3 Circuit Diagram for Checking KP Relay C Calibrations 24 2 UTER Figure 4 Contact Adjustments
41. s Orders should speclfy quantity and color desired NO 22 B amp 8 GAUGE FLEXIBLE COPPER WIRE in color code for wiring control machine and control units Orders should specify quantity and color desired PUNCH Used with Eyelet Rivets to attach Armature Bakelite to Relay Armatures Not shown 9 9 ea 9A 9 9 9 gor ae A 3586 34 TOOL for removing Lamps ete A P 9 3 5 sos tetau A 2589 21 BENDER STRAIGHT for Contact Springs urn j amp 2508 14 GRAM GAUGE W E 66B for measuring contact pressures Not shown BURNISHING TOOL W E 205C for cleaning contacte Not shown uat05100 l UM243028 UM244733 0245029 U0255604 UM244732 UN259500 UMI170241 UM282051 UM202634 UM243658 UN320728 UN243000 UN243001 UN243002 UJ38120 DESCRIPTION RESIN CORE SOLDER for making soldered hasse deis Do not use acia zore or acid soldering paste or fluid Not shown ANVIL Used with eyelet Rivets to attach Armature Bakelite to Relay E Armatures Not shown A A 2588 34 SOCKET for adjusting Spring Tension of C T C type plug Connectors 1 A 2588 80 PUNCH Used with Tubular Rivets to attach Armature Bakelite to Relay Armaturagd ccc sce me ree reese A 25898 12 PUNCH AND ANVIL SET Includes 1 20 and 1 21 A 2588 72 REPAIR SET FOR RELAY ARMATURES
42. tout is within the correct values it will reclose its contacts in 100 to 145 seconds and will reopen them in not less than 60 seconds provided the ST relay is kept reversed CODE TIMING Short Impulses A short odd numbered impulse line relay contacts counterclockwise is timed by the pick up of a counting relay release of T and the pick up of R A short even numbered impulse line relay contacts clockwise is timed by the pick up of a counting relay release of a counting relay pick up of T and the release of R These values are in general fixed with the type of relay Speed of Counting Chain If all contacts are properly adjusted and the armatures and cores are free from dirt the counting relays will follow a speed of about 24 pulses per second at normal voltage A test for the counting chain as well as the rest of the unit can easily be made by varying the voltage as outlined under Tests of Units on Voltage Limits Page 6 If a unit will work properly with this voltage varia tion ample margin is provided in the counting chain In timing a unit it is an aid to remember that 1L being odd numbered determines the length of all odd numbered long impulses and controls registry circuits over contacts on the odd numbered counting chain relays 1 3 5 7 Relay 2L being even numbered determines the length of all even numbered long impulses and controls those registry circuits which are taken over the even
43. vidence of heating or lightning shots Test insulations of contacts involved in the line circuit using an instrument which applies at least 100 volts between the contact mem bers and the relay frame A 500 volt megger is a very suitable instrument for this purpose Insulation tests may be made by meggering between terminal posts as tabulated below A more detailed check should be made inside the unit when the megger tests indicate the presence of damaged insulation All readings should be infinite except the reading between terminals 41 and 42 on the office line coding units When testing between these two terminals the needle should dip to a 5122 p 2 low value at the beginning of the test and should then climb upwards reaching a final value greater than 20 megohms in a few seconds Note that if an a c type tester is used a permanent low reading will be obtained on this test due to the impedance of the condenser When any contact stack shows evidence of break down all the bushings and insulating blocks in this stack should be replaced Also the contact springs should be carefully cleaned to eliminate any trace of carbonized material around the holes through which the bushings pass Test as follows Office Line Coding Units Make sure R relay is in the normal or clockwise position 41 to 19 20 42 53 case 42 to 19 20 63 case 53 to 19 20 63 case 63 to 19 20 case 19 to 20 case 20 to case Field L
44. witch to position 4 Operata Obsrrve that flaid Ml relay cannot d 4 fi ladicatlon code steps for function indicatlon are 1 short Operation ER j Balta Apoia PE org or ac Switch H STEP 14 H 1 mm cordance with Use posilions of the Function Indicalion Switchas These m pest ent amich 1o position son Clation Elimination Cireult Bet Sailon Selection Switch la office to 334 Role that CD relay Ihe field L l l 1 33 code steps wilt be long when their respective switches are to the right rapaz teste Enders Set Statica Selection Switch In flald 10 248 C 5 unit operates to Loterrugt the o j 1 3 1 And will be short when their respeclive switches are to ihe General Circuit Tesis Transmit an indication code tods 1 A l 1 adm 16 Functlon relay ER operates on slaps 9 to 15 of Control codes The MA tal mee TONS PA Fir filorr l o TIT l Shi 500 Uatie ta Remove the field R relay f ils p oes p AT 2 run nr eade af e dr i Ea foe ud T bp Qc i 4 e E te relay ls operated to Ihe reverse posllion by a long impulse ad to the c Check di ST relay fc Place Offica Circuit Test Switch to posi c Office Teal Lamp should be Lighted 6 508 Units te the Fla k thal the i 1 j 4 1 norinal position by a short Impulse The funclion position Lamps indi stick circull over Mon 8 Transmit a contro and an Lndicalion ontinzzusir except during the B ae l 5 A Fn Chaek Lar t
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