Product Manual - Vorne Industries, Inc.
Contents
1. Model 77 712 BCD To Digital 3 Display Page 5 3 2 Data Examples BCD Data Character Displayed Character Displayed 0000 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 1111 ONU P LN Oh J Do Mm Hi mm Diop vo oo A Ch P GH ra o positive logic negative logic See Appendix A Model 77 712 BCD To Digital 3 Display Page 6 4 WIRING AND SPECIFICATIONS 4 1 Reset Internally pulled high active low contact closure to ground Requires 10 mS minimum duration signal Holding the reset line terminal 5 low forces the display to an all zero state and places the unit ina state equivalent to power up It is necessary to reset the unit in order to recognize any change in switch settings 4 2 DC Output Voltage Either 5 0 or 12 0 Volts DC regulated at 100 mA is available at terminal 7 for operating external devices 4 3 Power Requirements 120VAC 15 15 VA AC hot and neutral are wired to terminals 1 and 2 polarity not important Terminal 3 is Earth ground only 4 4 Timing Diagram lt TON gt STROBE TSETUP gt lt gt THOLD TON gt 20mS THOLD 2 OmS BCD 1 4 Model 77 712 BCD To Digital 3 Display Page 7 4 5 Wiring The output Voltage of the device driving the display must be compatible with the ordered input TTL 9 VDC 12 VDC 30 VDC of the display 5 30 VOLT DC SOURCE OUTPUT CARD 5 302. V Vorne Industries Model 77 712 BCD To Digital 3 Display User s Manual 1445 Industrial Drive Itasca IL 60143 1849 630 875 3600 Telefax 630 875 3609 Model 77 712 BCD To Digital 3 Display Page 2 5 MODEL 77 712 BCD TO DIGITAL 3 DISPLAY Table Of Contents INTRODUCTION TO THE 77 712 DISPLAY 1 1 Operation mire o O ieu 1 2 Display 0 9 ete ted e tbi vei le SETTING UP THE DISPLAY FOR YOUR APPLICATION 2 1 Selecting Sink Or Source Inputs 2 2 LADAL SEV ISS A NA SET eee USING THE DISPLAY 3 1 Data e E 3 2 Data Examples seuren neden teen Gas WIRING AND SPECIFICATIONS 4 1 RESA 4 2 DC Output Voltage cirie 4 3 Power Requirements ss adi ere ee eee 4 4 dr AAA oma sd 4 5 Klee 4 6 Terminal Strip Identification 4 7 Dimensions EEN 4 7 Dimensions Bezel Mount vesical device 4 8 Accessing the Logic Board eese APPENDICES Appendix A Character Set iuniindiia is Model 77 712 BCD To Digital 3 Display Page 3 1 INTRODUCTION TO THE 77 712 DISPLAY 1 1 Operation The model 77 712 accepts parallel or multiplexed BCD information with either positive or negative true logic and converts it to a digital display Hex values A through F can also be displayed 1 2 Display From2 to 6 digits with 3 3 high characters 2 SETTING UP THE DISPLAY FOR YOUR APPLICATION 2 1 Selecting Si
3. VOLT DC USERS SUPPLY V 4 NC GND 5 RESET 6 DC GND 7 V OUT 32 RETURN OUT 31 MST STB OUT OUT 29 DIG 6 D OUT 28 DIG 6 C OUT 27 DIG 6 B OUT 26 DIG 6 A OUT 5 LSD STB OUT 4 LSD D OUT 3 LSD C OUT 2 LSD B OUT 1 LSD A VORNE DISPLAY OUTPUT DEVICE 1 Tie external supply DC ground to Vorne DC ground 2 Tie external supply DC ground to Vorne Return terminal 8 Connect source outputs to Vorne inputs 30 DIG 6 STB 5 30 VOLT DC SINK OUTPUT CARD 5 30 VOLT DC USERS SUPPLY CONTACT OUTPUT CARD 5 30 VOLT DC USERS SUPPLY 4 NC GND 5 RESET 6 DC GND 7 V OUT 82 RETURN OUT 31 MST STB 30 DIG 6 STB 29 DIG 6 D 28 DIG 6 C 27 DIG 6 B 26 DIG 6 A 5 LSD STB 4 LSD D 3 LSD C 2 LSD B 1 LSD A VORNE DISPLAY OUTPUT DEVICE 1 Tie external supply DC ground to Vorne DC ground 2 Tie external supply V to Vorne Return terminal 3 Connect sink outputs to Vorne inputs 4 NC 5 RESET 6 DC GND 7 V OUT 5 S SS SQ 32 RETURN 31 MST STB 30 DIG 6 STB 29 DIG 6 D 28 DIG 6 C 27 DIG6 B REZZA 26 DIG 6 A ki 5 LSD STB e 4 LSD D dig 3 LSD C 2 LSD B L d 1 LSD A CONTACT VORNE OUTPUTS DISPLAY 1 Tie external supply DC ground to Vorne DC ground and to common of switches 2 Tie external supply V to Vorne Ret
4. digit 14 50 7 0 11 90 3 80 30 10 6 25 45 65 45 1360 5 90 5 digit 17 25 7 0 14 65 3 80 30 10 7 63 45 65 45 16 35 590 6 digit 20 0 7 0 18 40 3 80 30 10 9 00 45 65 45 1940 590 All dimensions in inches Dimensions of panel cutout 4 8 Accessing the Logic Board Alluser accessable functions and wiring points are located on the main logic board ofthe 77 712 For access remove the six 8 screws which hold the front panel to the rest of the enclosure Warning Shock Hazard Disconnect power to the display prior to removing the front panel Do not reapply power until the front panel has been reinstalled Model 77 712 BCD To Digital 3 Display Page 10 5 APPENDICES Appendix A Character Set 00000000 5 00 0 9 0000 D 0000 gt D m 3 0000 N 0000000 UJ TI 00000000 Model 77 712 BCD To Digital 3 Display Page 11 lt Vorne Industries Incorporated 1445 Industrial Drive Itasca IL 60143 1849 Tel 630 875 3600 Fax 630 875 3609 P0003R02
5. c should be selected if the return line is tied to V and negative strobe logic should be selected if the return line is tied to ground In this mode any BCD data will be instantaneously displayed 2 Master strobe mode As long as the master strobe input terminal pin 31 is held inactive display digits will ignore any change of BCD input data If the master strobe is brought to the active level any data on the inputs will be transfered to the respective display digits until the master strobe is brought inactive again 3 Independent strobe mode Each digit can have its own independent strobe As long as the digit strobe is held inactive the display will ignore any change of BCD data for that digit When the data strobe is active the BCD input data will be transferred directly to the display Note Formodes 1 2 and 3 switch 2 of the PC mounted selector switch must be in the off position parallel mode 4 Multiplexed mode In this mode BCD data is entered via pins 1 through 4 of the terminal strip To display data in this mode hold all strobe lines inactive until the data to be displayed is present then the strobe of the selected digit should be pulsed active This process is repeated for all of the digits on the display To select this mode switch 2 of the selector switch should be in the on position S1 S2 S3 S4 0123 4 VIE S1 S2 S3 S4 MUX NEG NEG ON PAR POS POS OFF IN TYP DATA STB
6. nk Or Source Inputs The BCD and strobe inputs can be selected as active low inputs normally pulled to V activated when input is switched to DC ground or active high inputs normally pulled to ground activated when input is switched to V To select active low inputs connect the V of your supply to the return line terminal pin 32 and tie the V ground of your supply to DC ground terminal pin 6 To select active high inputs connect the V ground of your supply to the return line terminal pin 32 and to the DC ground terminal pin 6 See Section 4 5 Wiring 2 2 Input Types Two standard input types are available L Low Voltage Logic 0 0 1 5VDC Logic 1 3 5 9VDC Input Impedance 680 Ohm Maximum Leakage Current 2 mA H High Voltage Logic 0 0 6 6VDC Logic 1 9 30VDC Input Impedance 3 3 K Ohm Maximum Leakage Current 2 mA Model 77 712 BCD To Digital 3 Display Page 4 3 USING THE DISPLAY 3 1 Data Entry Up to 6 digits of BCD data can be entered Each digit is made up of four BCD lines and one strobe line Data logic and strobe logic are independently user selectable as positive or negative logic via a PC board mounted selector switch Minimum input time duration is 20 mS The strobe inputs can be used in four different modes 1 Constant strobe mode To select this mode it is necessary to match the strobe logic with the return line via the PC board mounted selector switch Positive strobe logi
7. urn terminal 3 Connect contact outputs to Vorne inputs Model 77 712 BCD To Digital 3 Display Page 8 4 6 Terminal Strip Identification lolo pololo 1 2 3 4 5 6 7 120 120 EARTH NC RESET DC V OUT VAC VAC GND GND Screw Terminal Strip TERMINAL 1 3 4 5 6 8 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 LSD DIGIT 2 DIGIT 3 DIGIT 4 DIGIT 5 DIGIT 6 MST RTN BCD VALUE A C D STB A C STBA B C D STB A B C D STB A B C D STB A B C D STB STB BCD Terminals 4 7 Dimensions 3 16 Dia 6 Places 3 9 A B C D E F G H J K 3digit 10 85 7 10 9 15 3 80 35 55 487 1 05 225 85 4 digit 13 60 7 10 11 90 3 80 35 55 625 1 05 225 85 5 digit 16 35 7 10 14 65 3 80 35 55 7 63 1 05 225 85 6 digit 19 10 7 10 18 40 3 80 35 55 9 00 1 05 225 35 All dimensions in inches Model 77 712 BCD To Digital 3 Display Page 9 Bezel Mount 3 16 Dia 6 Places A B C D E F G H J K L M 3 digit 11 75 7 0 9 15 3 80 30 1 0 487 45 65 45 10 85 5 90 4
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