Service-Instructions TNC 114
Contents
1. 50 nF analog voltage 0 to 12 V contact loading 48 V 0 3 A max switching power 10 W working contacts axis release X working contact regulator release switch over contact traversing direction switch over contact momentary traversing speed internal external 2 Interface wiring CONTROL user multipoint terminal ov 0v feed 0 e12V 15 V max 2 mA 12V EMERGENCY OFF regulator release OV load referenced to O V analog R 2 2 4 kOhm he 0 12V output C Sp nF regulator release neg traversing directidh pos control 36 manual Z axis relay eS ee E3 Y axis relay eo X axis relay DR JOHANNES HEIDENHAIN TNC 114 D 8225 Traunreut EXCHANGE Telefon 086 69 31 0 Telex 56831 Control Exchange page 2 stand 01 10 83 Kundendienst 3 Exchange 1 Note operating program nr and ident nr of the control 2 Disconnect mains coupling of the control 3 Isolate connections on the multipoint terminal Order 1 22 and note wire colors 4 Disconnect transducer systems for X Y Z Assembly in reverse order Important Observe correct positioning of the line voltage selector Fusing T 0 4 A B DR JOHANNES HEIDENHAIN D 8225 Traunreut Telefon 086 69 31 0 Telex 56831 Kundendienst 1 General Observe MOS protection procedures 2 Exchange 1 2 3 4 5 6 7 8 9 Remove the 4 Phillips m2. control keyboard LEDs PSP s TEE Tt RT RE oe a pl ft EBERLE ee Ee momentary display X DR JOHANNES HEIDENHAIN 7 D 83225 Traunreut Telefon 08669 31 0 Telex 56831 Kundendienst 1 Automatic fail diagnostics With operating faults an automatic fault message is issued by the TNC 114 which simultaneously opens the regulator release contact a Transducer is defective The accompanying momentary position LED will blink with a transducer defect Erasing the message Switch off line voltage switch on line voltage after fault has been remedied b Defect in the electronic Faults of this type are coded by the TNC 114 the lamps over the reference point keys will illuminate Erasing the message if after switching on the fault message reappears the TNC 114 must then be sent to the factory for repair with noted lamp fault coding c Positioning direction error If for a selected positioning direction the machine coupling lever is switched in the false direction the feed will be switched off after 200 um of traversing A U shaped symbol will appear in the display Erasing the message press the key restart and bring the coupling lever in the correct position 2 TNC 114 FAIL DIAGNOSTICS page 1 stand 01 10 83 Internal test program The internal test program will begin after switching on Visual control All segments of the momentary position value and the preset display must illuminat
3. 0 Position several values in incremental dimensioning in both positive and negative directions in all axis Traverse a larger value 1000 test feed potentiometer during the positioning as well as the STOP key and Repeat the test for Y and Z axis traverse functioning DR JOHANNES HEIDENHAIN D 8225 Traunreut Telefon 08669 31 0 Telex 56831 Kundendienst Reference pulse evaluation Select operating mode HAND Set axis to reference Press the REF key REF diode must luminate Rotate rotary encoder Shaft over reference impulse REF LEDs off press REF key press again and hold Rotate rotary encoder shaft until reference impulse stops the display The displayed value must evaluate to impulse count x signal subdivision x evaluation x counting step example MINIROD 450 100 impulse rotation TNC 114 signal subdivision 2 x evalution 4 x counting step 5 um 100 x 2 x 4 x 5 um 4 000 displayed value Axis supervision The axis supervision is active on all 3 axes within a distance of 205 um The standstill of the remaining axes that are momentary not controlled is supervised The direction of the momentary controlled axis is supervised TNc 114 FAIL DIAGNOSTICS Test Instructions page 3 stand 01 10 83 Direction supervision test Connect rotary encoder to transducer system input X axis and dummy connections on transducer input X and Z axis Select operating mode absolute dimensioning Fo
4. 1 DR JOHANNES HEIDENHAIN TNC 114 page 3 stand 01 10 83 Kundendienst For reasons of complexity of the interdependent control functions the following information regarding the possible fail source location serves as guide only Occuring fault Possible fault location transducer supervision system addressed transducer system analog board counting error analog display board counting direction switch over not functioning power supply analog board no reference impulse transducer system analog board key does not function display board control LED dark display board momentary position display faulty undefined display board preset display faulty undefined display board set function faulty display board reference values are not faulty stored display board direction supervision does not respond power supply analog board analog output board no standstill supervision l display analog board no faulty momentary value output manual feed potentiometer analog output board no EMERGENCY OFF traversing direction axis relays X Y Z closed loop release speed momentary value internal analog output board external approach behaviour faulty analog output board coded failure display after switch on He Ag x display board x display board x analog board x x analog board x x analog board x x x analog board x analog board x x analog board EN DR JOHANNES HEIDENHAIN 2 D 8225 Traunreut wes Telefon 08669 31 0 Tel
5. 1 0 Telex 56831 Test Instructions page 2 stand 01 10 83 Kundendienst Storage function Switch off line voltage 4 3 Testing the dessembled control then switch on again After switch on select the INCH Supervision function operating mode The following Disconnect transducer connections for X Y and Z axes values must be displayed The momentary value display must blink in the same order of disconnection Level 1 Level X axis set to 11111 115 X axis 437 4454 Counting function X axis set to 12222 225 Y axis 481 1900 Connect rotary encoder to X axis input dummy connectors Z axis set to 13333 335 Z axis 524 9344 on X and Z axis Test the counting function in positive and negative directions of all axis and decades 2 Level 2 Level On the backside of the unit the counting direction for X axis set to 14444 445 X axis 568 6788 every axis can be selected using the DIL switch 1 2 and 3 Y axis set to 15555 555 Y axis 612 4234 The counting direction is positive when switch is closed Z axis set to 15555 665 Z axis 656 1678 3 Level 3 Level X axis set to 17777 775 X axis 699 9124 Y axis set to 18888 885 Y axis 743 6568 Z axis set to 19999 995 Z axis 787 4014 EXE ilr 4 Level 4 Level counting direction positive X axis set to 10000 000 X axis 393 7008 Y axis set to 12345 675 Y axis 486 0502 Z axis set to 19876 545 Z axis 782 5410 Control function Position a positive and negative value in absolute dimensioning e g 100 10
6. Service Instructions HEIDENHAIN TNC 114 DR JOHANNES HEIDENHAIN Feinmechan k Optik und Elektronik Pr zisionsteilungen Postfach 1260 D 8225 Traunreut Telefon 08669 31 1 Telex 56831 Telegrammanschrift DIADUR Traunreut Customer Service Printed in West Germany All nghts reserved DR JOHANNES HEIDENHAIN D 8225 Traunreut Telefon 086 69 31 0 Telex 56831 Kundendienst TABLE OF CONTENTS o IMPORTANT INSTRUCTIONS o DESCRIPTION Block Diagrams o FAIL DIAGNOSTICS o EXCHANGE Control Exchange Board Exchange Software Exchange TNC 114 SERVICE INSTRUCTIONS stand 01 10 83 D 8225 Traunreut Telefon 08669 31 0 Telex 56831 2 DR JOHANNES HEIDENHAIN Kundendienst TNC 114 IMPORTANT INSTRUCTIONS page 1 stand 01 10 83 Subject to change without notice HEIDENHAIN is constantly working on further developement of its TNC controls It is therefore possible that details of a certain control may differ slightly of the control version which is being described herein For this reason it may be necessary to request an updated service manual from us Note Reproduction of this service manual is not permitted without our consent The TNC 114 contains sub assemblies with CMOS elements Although MOS IC s are equipped with an input protection diode network to eliminate the build up of static charges care must be taken when handling these elements The following requireme
7. e together with the same intensity All decimal points of the preset value must illuminate The decimal points of the momentary position value must illuminate from the second decade After approx 3 sec the preset values will be in the axis display the present value display 0 Operating mode with pj is selected The momentary test condition will be displayed in a coded manner with the LED s of the p z EJ keys The lower LED row will blink with a fault The following ICs are teste one after another ROM RAM TIMER The following fault conditions may occur X 0 0 X 0 X 0 X 0 0 o ROM error X 0 0 RAM error O X 0 timer 1 022 counter O Pin 9 X forwards 0 X 0 timer i counter 1 Pin 15 Y n X x 0 timer 1 counter 2 Pin 18 Z X X 0 timer 2 026 counter O Pin 9 X backwards 0 0 X timer 2 counter 1 Pin 15 Y 0 0 X timer 2 counter 2 Pin 18 Z x DR JOHANNES HEIDENHAIN D 8225 Traunreut EM Telefon 08669 31 0 Telex 56831 Kundendienst 3 Failure localization The following directions are only valid if the prerequisite that all secondary power supply voltages are present is met power supply board TNC 114 FAIL DIAGNOSTICS page 2 stand 01 10 83 soldering terminal voltage 6 5V 7 OV 8 Ur gp 9 OV Ep 13 15V 17 12V 18 15V 19 30v 4 5 23 6V 10 1i 20 5V 20 21 37 5V D 8225 Traunreut FAIL DIAGNOSTICS Telefon 086 69 31 0 Telex 5683
8. er XXX XXX XX programm nr current stand IC program ident number XXX XXX XX IC program nr pos nr current stand 2 Program program description standard program program ident number 212 927 02 IC program ident number 212 927 1B issue 04 09 1981 TNC 114 EXCHANGE Software Exchange page 1 stand 01 10 83 display board DR JOHANNES HEIDENHAIN D 8225 Traunreut Telefon 08669 31 0 Telex 56831 Kundendienst 3 Characteristic curve description The ramp characteristic curve can be adjusted by the DIL switches S1 2 and 1 3 on the analog output board 4 different ramp lengths are possible DIL switch up switch closed DIL switch down switch open DIL switch 2 and 3 up curve 1 DIL switch 3 up curve 2 DIL switch 2 up curve 3 all DIL switches down curve 4 Ramp characteristic curve TNC 114 viv 12 amp 15 ans s Kurve 0 66 1 08 da EY Kurve2 02 09 1844 Kurve ON GET 922 Xuves QG 023 4 61 TNC 114 EXCHANGE Software Exchange page 2 stand 01 10 83 HB uuum c analog output board 2 DR JOHANNES HEIDENHAIN TNC 114 D 8225 Traunreut EXCHANGE Telefon 086 69 31 0 Telex 56831 Software Exchange page 3 stand 01 10 83 Kundendienst 4 Program exchange Important observe MOS protection procedures In order to exchange the operating program the display board must be demounted from the control Necessary tools IC extract insertion too
9. er supply board series switching regulator power supply voltage Supervision 15 V SV Ur ep 5V 12 Vv 15V 30V Signal Netz P CTUM ee ee TERRA N EE N ernennen t Mandates dititi DR JOHANNES HEIDENHAIN TNC 114 D 8225 Traunreut DESCRIPTION Telefon 086 69 31 0 Telex 56831 Block Diagrams page 3 stand 01 10 83 Kundendienst analog board A Do A D7 Oe signal signal subdivision evaluation EXE 2x with 90 ref imp RIDI and evaluation momentary value aquisition RI u aZ Aa d D ie n 9 vl jie ie transducer supervision TNC 114 723 DR JOHANNES HEIDENHAIN i D 8225 Traunreut DESCRIPTION Telefon 08669 31 0 Telex 56831 Block Diagrams page 4 stand 01 10 83 Kundendienst analog output board are Eois switch 5 switching 3 E outputs E 12 V u H 9 feed Q DAC potentiometer K level converter 0 12 V intended value output OV A DO A D7 e PEE TAMAS EIT EATER UTE IE TE TE erem EE emere 5 DR JOHANNES HEIDENHAIN TNC 114 D 8225 Traunreut DESCRIPTION Telefon 086 69 31 0 Telex 56831 Block Diagrams page 5 stand 01 10 83 Kundendienst 6 144 MHz display board 1 address bus AB A15 EPROM IC P1 withI 0 Ports and Timer address data bus A DO A D7 programmable interface programmable interface
10. ex 56831 Kundendienst 4 Test instructions 4 1 Necessary equipment For testing purposes the following equipment is required digital multimeter rotary encoder with photo element signal output e g MINIROD 450 2 dummy connectors for transducer inputs TNC 114 FAIL DIAGNOSTICS Test Instructions page 1 stand 01 10 83 4 2 Testing the set function of an assembled control Operating mode HAND and key Input 11111 111i 15555 555 16666 666 19999 990 1 1 11 111 1111 11111 11111 19876 543 12345 678 0 0001 0 0009 10 100 Key e 9 BW sy 8 Ss ON NS nun w NON MRK HE HE Me rd HE red HE rd Hd re re NNN NN NNNNNNNNN DA DE DE DE PA Pd D4 DE P4 DE DE PA DE P OM 9 Y Z 0 01 0 005 mm inch 0 01 0 005 mm CE X Y Z X Y Z x Y 2 Inch D 2 D 2 D 2 Inch Preset 11111 115 15555 555 16666 670 19999 990 0 100 1 000 11 000 111 000 1111 000 11111 000 11111 000 19876 545 12345 680 12345 680 486 0504 486 0504 0 0000 0 0002 0 0010 0 025 5 000 95 000 100 000 3 9370 Axis display 11111 115 15555 555 16666 670 19999 990 0 100 1 000 11 000 111 000 1111 000 11111 000 11111 000 19876 545 12345 680 12345 68 486 0505 486 0504 0 0000 0 0002 0 0010 t 0 025 T 0 0010 DR JOHANNES HEIDENHAIN TNC 114 D 8225 Traunreut FAIL DIAGNOSTICS a Telefon 086 69 3
11. l small screwdriver remove EPROM from display board using extraction tool place EPROM onto MOS protection mat insert new EPROM correctly using insertion tool Important The inserted IC must be pointing in the same direction as the remaining IC s on the display board Before installing the board into the control visually check if all the IC pins are contacting the IC socket After an operating program exchange the program nr has to be changed on the backside of the control
12. nts in the work area must be met Prior to working with CMOS components or with assemblies equipped with CMOS elements all table coverings all operated instruments and or tools as well the work personnel must be properly grounded A portable MOS HANDLING SET for field service is necessary when exchanging the operating software and or servicing the TNC 114 1 a cable that equalizes potential differences between conductive work surface and ground 2 a wristband that provides an electrical connection between person and conductve work surface 3 a conductive work surface rV M Pos mA ER m OF TREE ORLA UOTE T2 T gt DR JOHANNES HEIDENHAIN TNC 114 E D 8225 Traunreut DESCRIPTION 7 Telefon 08669 31 0 Telex 56831 Block Diagrams page 1 stand 01 10 83 Kundendienst power supply compl P3 PL analog output board P2 analog board cable connection compl flat 50 x AWG 28 power supply board keyboard 8 keys TNC wiring multipoint soldering terminal Ea on 2 UR Qo x display board P2 2 63 g 18 n gt oo hx ci muna 773 in K 8855 ah b 22 Eee Oes JI J2 J3 iM volta 2 ge selector n with fuse x Y Z compl DR JOHANNES HEIDENHAIN D 8225 Traunreut Telefon 086 69 31 0 Telex 56831 Kundendienst TNC 114 DESCRIPTION Block Diagrams page 2 stand 01 10 83 pow
13. ounting screws of the control backside Service block including front plate display board analog board remove from frontside Disconnect DIL switch connector located on the analog board Disconnect grounding connector located on the analog output board Disconnect transducer system connector for X Y Z located on the analog board Disconnect flat cable connector for control input outputs located on the analog output board Disconnect the supply voltage to the analog board Remove the 5 Phillips mounting screws of the analog output board Disconnect flat cable connector located on the analog output board 10 11 12 13 14 15 16 17 TNC 114 EXCHANGE Board Exchange page 1 stand 01 10 83 Remove analog output board Disconnect the analog board supply voltage Remove the 5 mounting bolts of the analog board Disconnect flat cable Remove analog board Remove the 5 mounting bolts of the display board Disconnect the 4 keyboard connectors Remove display board Assembly in reverse order Observe the correct location of the LEDs when assemblying The power supply is offered complete inclusive line transformer and inclosure backwall as replacement part DR JOHANNES HEIDENHAIN D 8225 Traunreut Ew Telefon 08669 31 0 Telex 56831 Kundendienst 1 General The operating program for the TNC 114 is contained in an EPROM IC Pl 028 on the display board program ident numb
14. r example enter 1000 and initiate traversing with the X key Rotate rotary encoder counter clock wise minus direction With a value gt 205 um the segments b f and g must luminate on the preset display for all decades UUHHUUUU Repeat the test with negative positioning values and positive rotation directions Repeat test for Y and Z axis Standstill supervision test Connect rotary encoder on transducer system X axis input and dummy connectors on transducer Y and Z axis inputs Start X axis postioning Connect rotary encoder to transducer system Y axis input and rotate shaft The error message UUU OLU L appears in the preset display for a displayed momentary value of gt 205 um Repeat the test in positive and negative directions for all axes D 8225 Traunreut Kundendienst DR JOHANNES HEIDENHAIN Telefon 086 69 31 0 Telex 56831 TNC 114 EXCHANGE Control Exchange page 1 stand 01 10 83 1 General Caution Do not disconnect connectors under voltage All inputs outputs must only be connected to circuits having voltages produced according to VDE 0100 5 73 S8 low protection voltage Control inputs Momentary position output Control switching outputs VV ADIRI RS EA BG CAN SEA GEE ac Vt RE om r es giga mr input resistance approx 100 kOhm voltage input to determine feed rate regulated voltage of 0 to 12 V is required loading with respect to O V R22 4k C
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