PC-820/821 Parts Counter Service Manual
Contents
1. gt gt du 5 du 5 e 22 a oe 1500 3 17 84 gt 1 1 1 R7 R8 Li q E VRI 1 C4 52 52 Table Setpoints thru 16 Table 2 Setpoints 17 thru 32 1 R6 01 1 1 e h SWI 2 ON SWI 08 2ON E SETPOINT 5 PIN SETPOINT TB PIN PS 9 ATE U2 fe Yd 3 input 39 17 input 39 q output 39 2 17 output2. TO ADDITIONAL REMOTE BOARDS Table 1 Setpoints 1 thru 8 Table 3 Setpoints 17 thru 24 TO COM 2 MAIN BOARD REFER TO TABLES FOR SW1 1 ON 2 ON 3 ON SW1 1 ON 2 OFF 3 ON SI SETPDINT INFORMATION SETPOINT TB PIN SETPOINT TB PIN 1 46 1 17 46 1 46 2 7 46 2 REMOTE EXPANDED CONTRO 2 6 3 8 4 3 i IND I O BD P N 47183 0018 1 2 46 4 18 46 4 3 46 5 19 46 5 51 5 46 6 19 46 6 Hg H 4 46 7 20 46 7 NOTE 4 46 8 20 46 8 B35 B3 SOME COMPONENTS REMOVED 5 47 1 21 47 FOR CLARITY SSCU 8 47183 00xx 5 47 2 21 47 2 1 R 6 47 3 22
3. 32 15553 0082 OPTIONAL QUARTZELL BASE CABLE REMOTE ANALOG QUARTZELLL BOARD OPTIONAL CONNECTION DISPLAY CABLE CONNECTION Bl BATTERY P N 23597 0021 EXPNADED RAM KIT 2 CHIPS P N 51994 0050 CAUTI FAILURE 1 REPLAC REPLACE BSERVE BATTERY BAT PRO 17 M ERY ONLY WITH T PER P LARITY WHE USE AN EXPL SAME OR AY CA SION EQUIVELE YPE REC MME DED BY MANUFACTURER DISPOSE OF USED BAT MANUF ACTURER S INSTR FIRMWARE P N 51515 0019
4. O 1 fe IND 18 T ad DISPLAY INTERFACE 4 L BOARD E 820bd2 LOGIC GND DIAGRAM KEYPAD 15 14 13 12 1 10 9 87 6 54 38 1 DISPLAY BOARD PC 820 w BLUE BACKLITE P N 48622 1021 CDISPLAY SIDE SHOWN PS1 POWER SUPPLY INVERTER
5. P N 48618 0011 USED ON PC 820 ONLY gt P17 ON BACKSIDE OF BOARD J20 NOT INSTALLED ON BOARD S P N 7140 16193 HERE VOLTAGE Qv CUNNECT DISPLAY ASSY HIGH VOLTAGE AREA de HERE FOR PC 821 VERSION P21 NOT INSTALLED ON BOARD FOR BACKLITE CONNECTOR Pel PC 821 VERSION DISPLAY INTERFACE OO CONNECT 4 PIN BACKLITE CONNECTOR HERE FOR 820 VERSIUN R54 Pre oM ZSEE CONNECT TO J19 m VR4 Pi lt DISPLAY INTERFACE 55 BOARD ex 8 RAL RIS 9 ES S R42 R43 aS 5 V UB CD DISPLAY BOARD 821 BLUE amp BACKLITE 00 1 lt gt P N 48622 1013 u So 8 25 1 1 ij SY P18 CONNECT WITH DISPLAY SIDE SHOWN OO cmi KEYPAD CABLE 48 ue 20 1 1 3 C RIS Y l 1 ZZ 1551 R62 R l aa az ae e 1551 R63 v Bi Oo Aci a 820bd2 5 a 820 821 DISPLAY amp INTERFACE BOARD Fi m P N 50912 0010 lt PC 821 w o backlite amp blue M DISPLAY INTERFACE P N
6. 5 232 55 0 CABLE ASSEMBLY P N 51800 0013 0039 WEIGH TRBNIX RIGIN DESTINATION COLOR TERMINATION TERMINATION STGNAL YELLOW P9 3 2 2 RS232 RXD RED P9 4 2 9 5V SCANNER GREEN 9 5 P3 3 RS232 TXD 85232 BLACK 9 11 2 5 SIGNAL GND COMPUTER BROWN P9 10 P2 7 GIG GND J PA SSCU 8 Me P9 c Q D Es SCANNER a C 85232 BN _ MALE MALE 820cab RS 838 NULL MODEM PRINTER CABLE ASSEMBLY P N 51800 0021 DESTINATION COLOR TERMINATION TERMINATION STGNAL WHITE P9 3 P3 2 RS232 RXD GREEN P9 5 P3 3 RS232 TXD PRINTER BLAC 9 11 P3 7 SIGNAL GND PIN 1 Me P9 0 P3 PRINTER NOLE 5 25 820cab PIN 15 CREAR VIEW 820 821 FOUR DEVICE OCTAPUS CABLE ASSY P N 51800 0112 WEIGH TRONIX RIGIN DESTINATION COLOR TERMINATION ERMINATION STGNAL RED 9 1 J1 8 KBD TTL
7. MTG HOLES 2X IN DESIGNATED HOLES 821 ONLY 6X ENLARGED FOR CLARITY VIEWED FROM FRONT OF SCALE PC BOARD ASSY AND DISPLAY ASSY ARE SHOWN LARGER THAN NORMAL PROPORTION TO AID CLAIRTY REMOTE DISPLAY CABLE ASSY NOTE For more details for all PC boards including certain component part numbers ref the PC board assy pages in this manual PC 820 821 COUNTING SCALE 10 Ib 5 kg cap 12 x 14 BASE REAR VIEW OF SCALE SHOWING DECAL PLACEMENT WHEN USING REMOTE ANALOG QUARTZELL OPTION PARTS AND ASSEMBLY ITEM NO DESCRIPTION W T P N QTY 1 Main Bd to Display Cable Assy 51751 0012 1 2 Shroud 10 Ib 1076 16136 1 3 Quartzell Assy 7153 15694 05 1 Quartzell EPROM Programmed not shown 52036 0017 1 4 Screw 10 32 x 3 8 L 1006 02039 3 5 Vinyl Cap 1051 13968 3 6 Connector Mtg Bracket 1067 16154 1 7 Standoff f f 6 7 HX x 9 16 L 1044 16184 4 8 Display Mtg Plate 1069 16135 1 9 Standoff m f 6 x 1 4 x 9 16 L 15437 5000 4 10 Screw Flat Head Hex Soc 1 4 20 X 1 00 L 1018 11594 2 11 Main Computer and I O Pc Board 50908 0016 1 12 Power Supply 120VAC 14VDC 0 7 amp 1148 16069 1 Power Supply 230VAC 14VDC 0 7 amp 1148 16070 1 13 Pwr Supply Mtg Bracket 1067 15647 1
8. ERY ACCORDING U FLASH E PROM CTI NS FIRMWARE FLASH E PROM P N 31515 0027 PC 820 821 COUNTING SCALE MAIN COMPUTER amp I O REMOTE ANALOG INTERNAL BATTERY CHARGER PC BOARDS
9. Scale Division This menu m di displayed Type if only Remote 1 Analog H QDT Enter a display mode 5 kg gram 02 8 02 custom 1 custom 2 These appear only if enabled 1 1 Local 1 Remote 1 Remote 2 1 eee 4 wt Set time Numeric Numeric Reset Clear Enter value for and date tare entry piece weight Min Max internal checkweigher entry accumulators or bar graphs Min Max Over Under Serial if installed choices Baud Rate 1200 Exit is enabled patty None 098 Sei Data Bits gt 8 This choice 1 Handshake None CTS Xonxoft Both for ron only es ee gt Vies Port Mode BASIC Keyb rd Disable Spit 1 Dual 1 End of Message value 13 is default ieee ook These choices for Port 2 Enable Cap biv Zero Stable AZT Update Filter Ranges Tare RTZ TimeOut Intrval Continued on next page 0 5Hz 1Hz 2Hz 5Hz Figure 4a Setup Menus 10 PC 820 821 Parts Counter Service Manual FullRes Rounded Deadl d Zero
10. A B C D E SSCU 8 Caution 48552 0019 48552 0035 48552 0043 48552 0076 48552 0092 48552 0126 The Solid State Control Unit 8 SSCU 8 option boards require that the total cable length from PNE 48552 0027 48552 0050 48552 0068 48552 0084 48552 0100 48552 0134 the indicator to the last SSCU 8 box card be two 48552 0118 meters approx six feet maximum Noise prob B C D E lems and intermittent communications with the 58081 47183 00xx SSCU 8 card will occur if this guideline is not HR IUIS I oo followed The SSCU 8 card should be isolated from any S9 47183 00xx B 2 1 other possible grounds box conduit etc nssum n Only the cable connections from the indicator should provide ground to the SSCU 8 card SSCU 8 47183 00xx 33 EQUIVALENT EQUIVALENT EQUIVALENT EQUIVALENT EQUIVALENT CIRCUIT ONLY CIRCUIT ONLY CIRCUIT ONLY CIRCUIT ONLY CIRCUIT ONLY NEGATIVE TRUE LOGIC NEGATIVE TRUE LOGIC NEGATIVE TRUE LOGIC NEGATIVE TRUE LOGIC NEGATIVE TRUE LOGIC SSCU 8 4 47183 00 44 WIRING DIAGRAM FOR INPUT MODULES WIRING DIAGRAM FOR OUTPUT MODULES External Setpoint Card SSCU External Setpoint Card SSCU 846 p or TB47 TB47 51 51 52 52 51 51 52 52 e lolele le lelele EXTERNAL DC POWER SUPPLY EXTERNAL DC POWER SUPPLY L L i lt Li L LI LI LI LI LI LI
11. 45 Pages are numbered consecutively beginning with the cover page PC 820 821 Parts Counter Service Manual 3 Capacities and Resolutions Power Operational keys Annunciators Display Display rate Units of measure Displayed resolution Time and date Internal resolution Harmonizer digital filtering Memory Power saving Specifications Capacity Resolution Expanded p 10 Ib 001 Ib 00005 Ib 50 Ib 005 Ib 0002 16 In line transformer 115 VAC 50 60 Hz Optional 230 VAC 50 60 Hz Zero Tare Enter Escape Clear 0 9 Decimal Point Previous Next and 5 Softkeys All keys provide users with tactile and configurable audio acknowledg ment when they are activated Display symbols include Stability Active Tare Current Base Center of Zero Low Battery Unit of Measure and Display Label 240 x 64 dot matrix LCD display 5 x 1 33 displayable area PC 820 Cold cathode fluorescent backlit white on blue PC 821 LCD without backlight Selectable update rate 0 5 1 2 or 5 times per second Pounds kilograms grams ounces pounds and ounces and two fully customizable units of measure Up to 1 part in 500 000 Battery protected real time clock Y2K compliant Quartzell 1 part in 2 000 000 Analog optional 1 000 000 counts analog Fully selectable to ignore noise and vibration Capable of storing 1000 records including part number description count accumulator tare
12. i 8 44 7 44 422 BOTTOM VIEW rab 1 2 2 046 820011 D E 100 820011 13 33 A 4 75 MIN 1 06 378 5 75 i 8 94 z 4 50 5 MAX 5 94 DISH 11 82 DESCRIPTI P N SINGLE CABLE OPTIONS 9 2 BI DIRECTIDNAL 85235 9 PIN COMPUTER OR SCANNER 51800 0013 BI DIRECTIDNAL RS232 NULL MODEM 25 1 PRINTER 51800 0021 SSCU 9 SSCU ONLY 51800 0039 PC SERIAL KEYBOARD 51800 0047 TWO DEVICE CABLE OPTIONS C9 in 2 9 PIN SCANNER AND 25 PIN PRINTER 51800 0054 9 PIN SSCU PC SERIAL KEYBOARD 51800 0104 FOUR DEVICE CABLE OPTIONS 9 9 PIN SCANNER 9 SSCU 25 PIN PRINTER PC SERIAL KEYBOARD 51800 0112 PIN 1 PIN CONFIGURATION IS TYP FOR THE P9 15 PIN FEMALE CONNECTOR PC 820 821 COUNTING SCALE COM2 AND PIN OUTS IRMT_ANALUG RMT ODT mm COMI coma TN INTERFACE CABLE OPTIONS URATI P9
13. ipte 29 Draft Shield Parts and Assembly 000 30 50 Ib 25 kg and 100 50 kg 12 x 14 Parts and Assembly 31 System Wiring Block Diagram 44 32 Main Computer amp I O Remote Analog Internal Battery Charger PC Boards 33 Display amp Interface Bd Display Assembly Keypad Assembly and Matrix 34 Internal Battery amp Charger PC Board Parts and Assembly 35 Dimensional Outline for 12 x 14 Base 55 55909999 9555555590099 5 36 Interface Cable Options and 37 COM Interface Cables 820 to Quartzell Base and 820 to Eltron Printer Gable AsSembli88 Ker e EU oo 38 BP 25R Exterridl Battery Bias 39 Zeus Kits Internal and enne 40 SSCU Parts and Assembly 41 SSCU 8 Remote Expanded Control I O Board 42 SSCU External 16 I O Cutoff Expansion Board 43 Opto 22 Control Interface 44 Wiring Diagram for Input and Output Modules
14. LOAD LOAD VDC GND i VDC GND i i LI External Setpoint Card SSCU External Setpoint Card SSCU 46 or TB46 TB47 SI 2 52 lo le e EXTERNAL POWER SUPPLY T TB47 51 1 6225 52 6 9 EM GROUND LI LI LI HOT LOAD LOAD i TOSTUD 4 ry NEUTRAL LI LI 45 Weigh Bar is registered trademark of Weigh Tronix Inc July 2008 820 S P65 PN29724 0012 Issue AE Printed in USA Avery Weigh Tronix pue ome Avery Weigh Tronix USA 1000 Armstrong Dr Fairmont MN 56031 USA Tel 507 238 4461 Fax 507 238 4195 Email usinfo awtxglobal com www wtxweb com Avery Weigh Tronix UK Foundry Lane Smethwick West Midlands England B66 2LP Tel 44 0 8453 66 77 88 Fax 44 0 121 224 8183 Email info awtxglobal com www averyweigh tronix com
15. P4 MAIN COMPUTER 1 0 BD gt QDT REMOTE Jed SEE SYSTEM DIAGRAM FOR PIN SIGNAL DATA m e EL 14 M coy L 5 cs Serer NOT FUNCTIONAL maa A 05 REMOTE SENSING ON THIS BOARD A EAA 1 Eae SCALES 6 WIRE PLUS SHIELD INTFC CABLE INSTALL TER EL24 al R16 vre H Eal JUMPER 24 1 ONLY amp P25 1 ONLY p 4 z J Le LL ug E 27 TR HL ELE yl 84 SCALES w 4 WIRES PLUS SHIELD INTFC CABLE INSTALL JUMPER q y CONNECT 24 1 24 2 AND 5 1 Pes e I 05 6 1 vr6 E VET 10 61651 tere PES ANALOG REMOTE BASE cial a1 13 lt ei 1 88 VEA SEE SYSTEM DIAGRAM FOR PIN SIGNAL DATA ELI q RL Sad a Las O R4 L7 Rar 4 up Cad E JUMPER P87 1 amp 27 2 w BARRIER 820091 P27 3 amp 7 4 w o BARRIER 820 821 REMOTE ANALUG QUARTZEI BOARD 2 52111 0015 lt FIELD INSTALL KIT P N 52107 0011 33 PC 820 821 COUNTING SCALE DISPLAY amp INTERFACE BD DISPLAY ASSY KEYPAD ASSY And MATRIX KEYPAD 820 821 ESCAPE m amp i
16. 47 3 ue B 49583 00XX 6 47 4 22 47 4 Q Q Q Q 7 47 5 23 47 5 7 47 6 23 47 6 8 47 7 24 47 7 8 47 8 24 47 8 s 1e 438 339111440 J41 J42 J43 J44 J45 SSCU 8 47183 00 1 5 49583 00XX Table 2 Setpoints 9 thru 16 Table 4 Setpoints 25 thru 32 2 METERS SW1 1 OFF 2 ON 3 ON SW1 1 OFF 2 OFF 3 ON SETPOINT PIN SETPOINT 8 PIN St B461 TB47 EN 1 1 9 46 25 46 51 9 46 2 25 46 2 LL Q4 10 46 3 26 46 3 LETS NE SP toT too AH dec SP iDO d 15 ig 10 46 4 26 46 4 iii pii PN i 5 mo 1 47183 00 gt 46 6 27 46 6 SET 12 46 7 28 46 7 6 25 12 46 8 28 46 8 13 47 29 47 219 DIA 13 47 2 29 47 2 6 75 14 47 3 30 47 3 14 47 4 30 47 4 15 47 5 3 47 5 SSCU 8 15 47 6 31 47 6 REFER TABLES F R 16 47 7 32 47 7 51 5 INFORMATION 1 47183 00 l 47 8 31 49 47 8 820 1 42 PC 820 821 COUNTING SCALE SSCU EXTERNAL 16 I O CUTOFF EXPANSION BOARD P N 49853 0013
17. 9 2 85232 WHITE P9 3 Pe e SCANNER RS232 RXD RED P9 4 Pe 9 5V GREEN 9 5 P3 3 PRINTER RS232 TXD ORANGE P9 6 4 1 SDA BROWN P9 7 P4 4 SCC GREEN P9 8 4 5 TNT BLAC 9 9 41 5 5 YELLOW P9 10 1 4 GND 29 11 2 7 GND SSCU BLAC P9 12 P3 7 GND BLAC P9 13 4 6 GND RED P9 14 P4 2 5 YELLOW 9 15 4 3 RESET euis 820cab PIN 3 PIN 1 KEYBOARD FEMALE J1 PIN 4 PIN 5 PIN 1 SSCU PS 3 Bo SCANNER 1 0 85232 lt COMPUTER E PIN 9 0 0 P3 PRINTE MALE 25 820cab 37 PC 820 821 COUNTING SCALE COM1 INTERFACE CABLES 820 TO QUARTZELL BASE AND 820 TO ELTRON PRINTER CABLE ASSEMBLIES 820 TO QUARTZELL BASE CABLE ASSEMBLY P N 49387 0026 lt 10 gt DESTINATI Drm WIRE COLOR TERMINA
18. Remote analog 60 updates second set AVG to 12 AVG is the number of conversions you want to average For example with an analog base if you pick 30 the unit will average the weight values from the last 30 conversions or 2 second and uses that value for displayed data The next choice you have is for turning the Harmonizer filtering on or off If you turn the Harmonizer filtering on you need to set the Harmonizer Constant Typical values are between 1 and 8 Set the number low for small vibration problems and higher for more dampening effect The purpose of the Harmonizer Threshold is so the indicator will respond quickly to large weight changes Harmonizer Threshold is the amount of weight change in calibration units beyond which the Harmonizer will be temporarily disabled For example if you set this to 10 16 a weight change over 10 pounds occurring during the sample time 1 second in our example will disable the Harmonizer until the weight change during the sample time drops below 10 pounds Press the ROC softkey to calculate Rate of Change for time weight based applications You are prompted to enter an ROC Samples value Default is 50 You are then asked to enter an ROC Multiplier value Default is 50 Explanations for these are given below ROC Samples The number of samples over which the rate of change of weight is deter mined The PC 820 samples the Quartzell at 50 times per second 60 times per second for external Qua
19. lt gt nm sssssss CR pd_sssssss lt CR gt td_hh mm_AP_www_dd _yy tr_x xx_U lt CR gt wb x CR wd lt gt we U CR wg UxCR X XX CR ws HML CR x xx HML CR 22 SSS CR lt LF gt lt CR gt ASCII space character units of measure characters LB for pounds for kilograms GM for grams ASCII carriage return character represents the three bytes of scale status information as described on the next page Table 3 Accumulate present count weight Request accumulator count Request accumulator weight with units Request accumulator transaction count Clear accumulator amp transaction counter Clear sample Request count value Request piece weight value Sound beeper Clear description Request description Enter description Clears invalid information Requests stored ID Requests stored lot number Requests stored name Clear part number Requests part number Enter part number Enter piece weight Requests time and date Request tare value Clear current tare value Enter tare value Tare the scale Changes unit of measure Request base number Switch to base x Request net weight Request net weight with units Request gross weight with units Request net weight unrounded in current unit of Request scale status Zero the scale Request net weight with units and status Shows software revision Unrecognized c
20. CONNECT P34 USING CABLE P N 51809 0014 TO BATTERY 820 821 BATTERY CHARGER BOARD INTERNAL BATTERIES P N 51770 0019 CUNNECT P33 CUSING CABLE P N 51809 0022 TO Pe MAIN BOARD O FLI 6 ER 8 b DC POWER IN 111 81 3 DEDI DN P3 77 13 9 0 5 o c o v o 16 18 q 8 i CUM D te REF SYSTEM WIRE DIAGRAM FOR 828 ual q PIN SIGNAL DATA 11 986 us d NOTE w 51 NOT FUNCTIONAL Gu 5 Ei ON THIS BOARD EIE ues p 1 n T CUM 1 us d 1 REF SYSTEM WIRE DIAGRAM FOR 030 wh 553 SIGNAL DATA e 05 019 S i CPS i R7 1 T 1 7 11 us 82 O 1 1919 Boneh 59 ge 1 m 1 R2 HAS BEEN PRE SET AT FACTORY PIS PR PM Ple DO NOT RE ADJUST 1 1 PC 820 821 MAIN COMPUTER amp 1 0 BOARD SY 50908 0016 PINS 1 amp 2 RS 232 JUMPER PINS I amp 2 PINS 2 8 3 RS 485 DO REMOVE FOR NORMAL OPERATION x REMOVE JUMPER FROM ONLY WHEN INSTALLING INTERNAL BATTERY KIT P N 31799 0057 AND CONNECT 51809 00222 TO Pe COM 1 J7 JUMPER CHART JUMPER PINS ON RS 232 RS 485 P12 1 amp 2 RTS 2
21. NO YES Int 1 Cap Int 1 Div Continued from previous page Enable Enable Set display Set volume Enable Enable Enable Assign print formats remote units and backlight level keys displayable display to serial port destination bases of measure timers values parameters 1 or 2 Fast Figure 45 Setup Menus Select Softkey Press Select The following softkeys are displayed Display You are prompted to enter a display mode number 1 20 See Appendix A Available PC 820 Displays Base You are asked to pick the active scale base Only active bases are offered as choices Unit You are asked to select the active unit of measure from this list Ib kg gram oz 16 02 custom 1 custom 2 BASIC Softkey In this selection you can view the values of all the variables in the BASIC program Vars and all the values stored in nonvolatile memory Stores Under Vars are softkeys for moving through the list of variable values FIRST Moves to the first variable in the list NEXT Moves to the next variable in the list EXIT Returns to the previous menu PC 820 821 Parts Counter Service Manual 11 Configuration Menu pass word is 2045 Scale Softkey Bases Softkey Units Softkey Ib is the only enabled unit of measure in a new scale If only one unit of measure is enabled there is no UNITS softkey available 12 Under Stores there are two types of volatile memory you can choose to See
22. The same stipulation 2 devices on Com Port 2 cannot send data at the same time applies as in Dual Mode This mode is useful if you have a keyboard and 2 other devices which may send data EX a keyboard and a bar code scanner on Com Port 2 along with a PC on Com Port 1 End of Message Character Key in an ASCII character value Default is 13 which is a carriage return Exit Softkey Press this key to exit this menu and return to the higher menu level Calibration Menu password is 30456 The next menu is the Calibration menu See Figure 4a Access this menu by following these steps 1 Press and hold the ESCAPE key until the scale beeps and new softkeys appear 2 Press the SETUP softkey Scale prompts for a password 3 Key in 30456 and press ENTER You are then given the choice of Local Remote 1 or Remote 2 20 PC 820 821 Parts Counter Service Manual Display Softkey Setup Softkey Appears only if one remote base is enabled Zero Softkey Span Softkey Calibration Error Messages 4 Select the base you want to calibrate The following softkeys are then displayed Display Setup Zero Span Exit Each of these keys is discussed below Press the Display softkey to see the weight display for the currently selected base This allows you to see the weight without exiting the calibra tion menu Press the Setup softkey to enter the capacity and division size of the currently selec
23. 28 input 41 7 dE IN IN 820expe 12 output 4l 8 28 output 4l 8 IN 13 input 42 29 input 42 13 output 42 2 29 output 42 2 14 input 42 3 30 input 42 3 SW3 14 output 42 4 30 output 42 4 15 input 42 5 31 input 42 5 0 15 output 42 6 31 output 42 6 EXTERNAL 16 input 42 7 32 input 42 7 E SWe 16 output 42 8 32 output 42 8 SUPPLIED T output RELAY VOLTAGE _ K3 60 VDC MAX 1 TYPICAL RELAY CONNECTION Ke TYPICAL REMUTE 2 1 NPUTS ZERO TARE PRINT 43 22 CONTROL INTERFACE DEVICES Specifications 1 Amp The OPTO 22 Generation 4 I O modules can be used on the optional Remote Expanded Control Interface Boards max 32 NEW OLD OPTO 22 Type External circuit External Turn on Turn off operating P N P N P N AC or DC Color voltage range circuit ime msec time temperature Opto 22 Output Module Fuse Table 48552 46571 Input or Output Max Current range 1 5 nated Rated Current Wickmann W T P N Current Wickmann amp TR5 F P N 46618 amp TR5 F P N 0015 19373K 50A 0122 19373K 630A 0023 19373K 63A 0130 19373K 800A 0031 19373K 80A 0148 19373 1 0049 19373K 100A 0155 19373 1 25 G4IDC5D DC only input 2 5 28 vdc only 30mA 1 0 30 Cto 70 G4IDC5B DC only input 4 0 16 vdc only 45mA 0 05 30 Cto 70 G4IDC5 AC DC input 12 32 25mA 5 30 Cto 70 C G4IDC5G AC DC inpu
24. 39 2 DT ERE 2 input 39 3 18 input 39 3 1 1 1 1 2 output 39 4 18 output 39 4 Uu d US d U6 d J 3 input 39 5 19 input 39 5 B gt 3 39 6 19 output 39 6 04 Qe Q8 Q6 012__ 010 916 014 4 input 39 7 20 input 39 7 R13 Ql R33 2 05 R37 09 R4 013 4 output 39 8 3 ind Reg R17 Rel gt 823 5 input 40 input TB38 R28 Q3 R16 Q7 R20 Qu R24 015 5 output 40 2 21 output 40 2 56 4 SS 1 8 535 CRT THE CRI6 6 input 40 3 22 input 40 3 1 R27 R31 CR7 R35 39 j gt CRIS 6 output 40 4 22 output 40 4 R26 CR R30 CR6 R34 CRI10 838 14 7 input 40 5 23 input 40 5 510 514 1 85 I R18 cR9 URE 0818 7 output 40 6 23 output 40 6 zo gt 8 input 40 7 24 input 40 7 gt 1 TB40H 8428 8 output 40 8 24 output 40 8 gt lt 2 E 9 input 4l 25 input 4l id TB39 41 Q 9 output 4l 2 25 output 4l 2 X epus 254542625 45454545 45454545 10 input 41 3 26 input 41 3 1 1 8 22325 48 S1 5 g amp 75 g8 9210 11 12 3 14 15 16 10 output 41 4 26 output 4l 4 0 1 17 18 19 20 l UIN 21 22 23 24 25 26 27 28 29 30 31 32 input 41 5 27 input 41 5 1 0 33 34 35 36 0 37 38 39 40 41 42 43 44 45 46 47 48 output 41 6 27 output 4l 6 0 0 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 12 input 41 7
25. 50912 0028 PC 820 w backlite amp blue 1 JI9 NOT INSTALLED ON BOARD FOR PC 821 VERSION B820bd2 19 CONNECTS WITH DISPLAY ASSY FOR PC 820 VERSION 34 I AS PLAC z AS SHOWN LA USE THE TWO 2 STANDOFF CONFIGURATION AS SHOWN WHEN ANALOG BOARD OPTION HAS NOT BEEN INSTALLED E BEHIND TABS CONFIGURATION AS SHOWN WHEN USING ANALOG BOARD M OPTION PLACE 12 APPROXIMATELY AS SHOWN 820batl ROTATED 90 FROM MAIN VIEW Pe USE THE SINGLE STANDOFF PC 820 821 COUNTING SCALE INTERNAL BATTERY amp CHARGER PC BOARD PARTS AND ASSY KIT P N 51799 0057 mts ITEM NO DESCRIPTION W T P N 1 Battery Bracket 51793 0012 14573 0124 EA 11 Standoff m f 6 x 1 4 HX 9 16 L 15437 5000 Mounting Device 17887 0010 Cable Tie 13762 0019 Standoff m f 6 x 1 4 x 5 8 L 15437 0456 Internal Battery Battery Charger PC Board Installation Instructions 1 Remove shroud refer to parts amp assembly pages in service manual when needed 2 Remove loadbridge by removing bolts attaching loadbridge to quartzell torque wrench required to reassemble 3 Remove the two screws from main board or analog board if installed where battery charger pc board will be installed see illustration These screws will be used to install battery charger
26. Configuration menu password 2045 Calibration menu password 30456 See Figure 4 and the Setup Menu section below for more information Off Press this softkey to turn the PC 820 off Pressing any key will turn the scale on The Test menu shown in Figure 3 lets you test your scale operation Normal Operation Press and hold ESCAPE for five seconds About Audit Test Setup otf displays displays Explained Turns scale off model name calibration later in this firmware and manual version etc configuration audit trail counters Display Keypad Bases Serial Outputs Inputs Performs a Lets you Displays Interna Enabled display test test front weight sensor serial inputs are Press ESCAPE panel keys information port tests shown to stop test I Next Toggle All On All Off Cycle Figure 3 Following are explanations of the tests in this menu PC 820 821 Parts Counter Service Manual 7 Display Softkey Keypad Softkey Bases Softkey Serial Softkey Outputs Softkey Inputs Softkey Display Keypad Bases Serial Outputs Inputs This test continuously cycles the display through various patterns This test lets you check each front panel key for proper opera tion This key allows you to view the output from the selected base Local Remote 1 and Remote 2 if co
27. PIN 9 PIN 1 3 0R PUIS LUE VIEN DUTSIDE VIEW 0 0 MALE FEMALE CONNECT TO 4 DEVICE OCTAPUS 1888 aca By l CABLE P N 51800 0118 OR DUTSIDE VIEW 2 DEVICE CABLE 51800 0054 PIN 9 oE Pe FEMALE OUTSIDE VIEW L 820cab2 C MALE COMPUTER PIN 9 0022 VERSION 38 820cab2 PC 820 821 COUNTING SCALE BP 25R EXTERNAL BATTERY w BUILT IN CHARGER OPTIONAL P N 46839 0018mts 115VAC 0026mts 230VAC WEIGH TRONIX ON B Pe2 5 R OFF 4 79 A LOW BATTERY BP 85R 1 820 821 CABLE ASSY P N 46850 0012 RIGIN ESTINATIUN m WIRE COLOR TERMINATIU ERMINATION BLK 15 14 1 12 WHT P15 B P14 3 RETURN PIN B bre END VIEW D aay S CBLIO P 14 PIN 1 Mos PIN A BLK gt OUTSIDE VIEW MALE OUTSIDE VIEW MALE BP2SR2 7 125018 Brecon 39 ZEUS INTERNAL KIT P N 53700 0010 gt INCLUDES BOARD MOUNTING PLATE RIBBON CABLE AND ALL NECESSARY HARDWARE KIT DOES NOT INCLUDE ANTENNA INTERNAL ZEUS RF REMOTE RADIO amp SCALE IDENTIFICATION DECAL SOLD SEPERATELY ZEUS EXTERNAL P N 53700 0028 KIT DOES NOT INCLUDE ANTENNA 820z
28. Samples to Average to 60 A Ds Check the stability of the scale How to Do It Save changes and exit to normal weight mode Observe the Center of Zero light If it is on all the time your scale is stable within 1 4 division If the Center of Zero light blinks more filtering is required Go to step 5 Repeat step 4 but increase the Constant by 1 0 Keep repeating steps 4 and 5 until the scale is stable or you ve tried the entire range of Constant 10 If the scale is still not stable decrease your display update rate and start over at step 1 using the new slower display rate After the Constant value is established you may wish to lower the Samples to Average value to improve display response time After a final value for Constant and Samples to Average has been set enter the Threshld value established in step 1 If this value is too small your scale will act as if the filtering is off or not working Increase the Threshld value until your scale stabilizes If the Threshld value is too high your scale will react slowly to weight changes When Harmonizer is properly adjusted the scale will be stable at zero and will rapidly display a stable test weight value 2 SN PC 820 821 Parts Counter Service Manual 27 28 820 821 Parts Counter Service Manual 8 places SHIPPING INSERT DO REMOVE 2 places TORQUE TO 90 5 IN lbs TORQUE 90 5 lbs
29. This section describes command set and protocol for interfacing a per PC and Scanner sonal computer PC or a Bar Code Scanner with the PC 820 The BASIC Interfacing application must support these devices via this command set and protocol The computer interface for the PC 820 will support bidirectional communi cation in a master slave protocol The computer master will send a command code sequence to the scale slave which will respond by returning the requested data or by performing the specified scale function Commands to the scale will be in uppercase and will be terminated with a carriage return character Scale responses will begin with the lowercase equivalent of the command code 22 PC 820 821 Parts Counter Service Manual COMMAND RESPONSE DESCRIPTION AC CR AR CR AW lt CR gt AT lt CR gt AZ lt CR gt CA lt CR gt CC lt CR gt CP lt CR gt DB lt CR gt DC lt CR gt DD CR DSssssssss lt CR gt IC lt CR gt ID lt CR gt LT lt CR gt NM lt CR gt PC lt CR gt PD lt CR gt PSssssssss lt CR gt PWx xx_U lt CR gt TD lt CR gt TR lt CR gt TZ lt CR gt Tx xx_U lt CR gt T lt CR gt U lt CR gt WB CR WCx lt CR gt WD lt CR gt WE CR WG lt CR gt WR lt CR gt meas WS lt CR gt WZ CR W lt CR gt ZZ lt CR gt UNRECOGNIZED lt gt aw U CR at lt gt CC XXXXXXX CR cp U CR dd sssssss CR id_ssssssss lt CR gt
30. numerics or strings Under each you are given these softkey choices Prev Moves to the previous indexed location Next Moves to the next variable in the list Select Lets you enter the index number you want to recall Exit Returns to the BASIC menu Below are the memory locations for standard and expanded memory Standard 0 8191 0 4095 Expanded 0 16383 0 8191 The next menu is the configuration menu See Figure 4 Access this menu by pressing and holding the ESCAPE key until the unit beeps Press Setup Softkey then key in 2045 and press ENTER The following softkeys are displayed Scale Base Serial Exit The items found under each of these keys is discussed below The Scale softkey gives you access to items for setting general scale parameters For example you set the number of bases attached count parameters sleep timer enable and disable keys select date format The first softkey under Scale is 4 Bases Press this and you are prompted to key in the number of remote bases 0 2 attached to the PC 820 0 local 1 Local and one Remote Quartzell by default You can set Re mote 1 to work with an analog base 2 Local two Remotes If two remote bases are used remote 2 must be analog Press the Units softkey and you are prompted to enable or disable each of the following units of measure lb only one enabled on first power up kg g 02 6 07 Custom 1 Custom 2 If you enable a cu
31. pc board 4 Install standoffs item 11 Use two if you have analog board or total of four 2 item 11 2 item 14 if not using analog board see illustration 5 Install battery charger board item 9 on standoffs using screws referred to in step 3 6 Install battery bracket item 1 with four screws item 2 as shown in illustration 7 Cut weather stripping item 3 into desired lengths and apply as shown 8 Place batteries into battery bracket and install cover item 5 on battery bracket using four screws item 6 9 Place the three mounting devices item 12 as shown 10 Remove the 2 pin jumper from P2 1 P2 2 on main board 11 Connect batteries with battery jumper cable assembly item 7 as shown 12 Using battery to charger board cable assembly item 8 connect red wire to positive terminal of one battery then connect black wire to negative terminal of other battery as shown Now connect the 3 pin connector to P34 on charger board item 9 13 Connect battery charger board to main board using charger board to main board cable assembly item 10 as shown 14 Attach cable assemblies items 7 8 amp 10 to the already attached mounting devices item 12 with cable ties item 13 as shown DO NOT FULLY TIGHTEN CABLE TIES AT THIS TIME 15 Verify that the wires in cable assemblies do not touch the quartzell or loadbridge or be pinched by them in any way then finish tightening the cable ties REF step no 14 16 Make sur
32. you enable this mode you are asked to choose the sampling scale and then the counting scale The default sampling scale is Local and the default counting scale is Last Choose Last to return to the scale you were using before you did your sampling Sample Parameter Switching Options When the scale is in sampling mode there are several features functions or modes you can change if they are enabled If they are not enabled the configured choices are used Here is where you can enable or disable those features The features are Sample Mode Switching Lets you switch between bulk and dribble sampling while in the sample mode Sample Base Switching Lets you switch bases for sampling and counting while in the sample mode Minimum Sample Weight Switching Lets you change the minimum sample weight while in the sample mode Sample Accuracy Switching Lets you change the sample accuracy while in the sample mode Count filter and sample latching mode Count filter You can choose a count filter of OFF Fast or Slow Default is Fast The count filter which can also be called count latching PC 820 821 Parts Counter Service Manual 13 Sleep Softkey To replace default values key in a new value and press ENTER to accept it ber you can press the CLEAR key to erase entered numbers Beeper Softkey Keys Softkey To enable the UNITS softkey you must enable more than one unit of measure If the remote base
33. 1 PC 820 front panel The display is a 64 x 240 dot matrix which allows several lines of text and the ability to display graphics See Appendix A Available PC 820 Displays There are five softkeys located directly below the display a numeric keypad to the right and six other labeled keys The keys will be described in the next section Built into the PC 820 are two RS 232 serial communication ports Com1 Com2 Com1 can also be used as an RS 485 port See the section Serial Communication for information on setting up Com1 as RS 485 Com can be bidirectional RS 232 port or a printer keyboard and scanner port This scale has an internal database and can have the option card to support a remote Quartzell or analog base Com3 is the local Quartzell interface PC 820 821 Parts Counter Service Manual 5 Front Panel Keys The keys on the front panel of the PC 820 are of two types hard keys and softkeys Hard keys are labeled directly and softkey labels appear on the display Softkeys function differently at different times and their labels change as needed Hard Keys ESCAPE ZERO 0 center of Zero icon 2e Stable scale icon TARE ENTER CLEAR 098 Right Arrow Left Arrow Below are brief descriptions for each of the hard key functions Press the ESCAPE key to back out of menus or cancel a numeric entry without accepting the value Press the ZERO key to establish a zero reference When the scale is
34. 14 Platter 1076 14702 1 15 Screw 6 x 38 L 1009 05758 7 16 Aluminum Spacer 1043 13977 1 17 Foot Assy 7075 15475 03 4 18 Capscrew 1 4 x 1 00 L 14527 0054 2 19 Standoff f f 6 x 1 4 HEX x 1 1 4 L use w 820 only 1044 16185 8 Standoff f f 6 x 1 4 HEX x 7 8 L use w 821 only 1044 80021 8 20 Standoff m f 4 3 16 HEX x 3 16 L 1044 01085 8 21 Cable Clamp 1074 00392 1 22 Level Bubble 1083 00095 1 23 Level Bubble Tape 1045 15177 1 24 Flat Washer 1 4 1029 80008 2 25 Acorn Nut 10 1028 16157 4 26 Base 7069 16183 02 1 27 Remote Analog QDT PC Board optional 52111 0015 1 Kit for above Incl Board hardware amp decal 52107 0011 1 28 Slotted Stud 1 4 20 x 2 00 L 1015 14427 4 29 Shroud Spacer 1043 14426 4 33 Loadbridge 1066 16179 1 34 Lock Screw load cell overload 1011 15213 1 35 Cable Assy Quartzell to main 7140 15668 1 36 Screw 26 32 x 471 1009 10039 2 37 Screw 6 32 x 5 8 L 1006 16265 1 38 Display Enclosure Top 1069 15966 1 39 Display Enclosure Bottom 1069 15967 1 40 Keypad Backer Plate Assy 51938 0018 1 41 Display Keypad Interface Pc Board Assy PC 820 50912 0028 1 Display Keypad Interface Pc Board Assy PC 821 50912 0010 1 43 Display Assy LCD w Backlite PC 820 48622 1021 1 44 Display Assy LCD w o Backlite PC 821 48622 1013 1 45 Screw 6 1002 01394 15 46 Complete PC 820 Display Head Assy 7131 15964ser 1 47 Standoff m f 6 x 1 4 HEX x 3 8 L 821 only 15437 0423 6 Optional items not shown Remote QDT Base
35. 83 XMITA P13 1 amp 2 XMIT 2 amp 3 XMIT B P14 1 amp 2 CTS 2 amp 3 RCVA P15 1 amp 2 RCV 2 amp 3 8 SEE JUMPER CHART o 0c n o o 81 O T ara us Riu m m d wi RIS HAS BEEN PRE SET AT COE DO NOT RE ADJUST 44 L9 b ue P ole 1 Eu OF ENCLOSURE REMOVED n 1 4 9 ioo FDR CLARITY q 1 ad E 88 ib 11 BACKSIDE OF BD CONNECTS Ut ule Ll FL 26 1 2
36. Avery Weigh Tronix V EET PC 820 821 Parts Counter Service Manual Table of Contents Tabl8 OF asics 3 SHECIIGATIONS 4 1111619118 9411610 5 About This 5 PC 820 Description 5 Front Panel KOS inte 6 6 lx SEN aq TEN 6 Entering the MP Los eot troi dote ueteres n 7 7 Setup Menus E E 9 User Menu password is 111 9 Configuration Menu password is 2045 12 Calibration Menu password is 30456 20 Configuration of Remote 1 for Analog Scale Base 21 Calibration Error Messages p t 21 Serial Communication 22 Scale Status Byte Definition erect 24 Appendix A Available PC 820 Displays 25 Appendix B Tips on Using 27 Technical Drawings and Parts Lists ro ro o tt rere ee 29 45 1010 5 kg 12 x 14 Parts and Assembly ort er
37. C subroutine call and is disabled when BASIC is running if the BASIC application is programmed to do so Press the Beeper softkey to choose a beeper volume Choices are OFF Low Medium and High Default is medium Press the Keys softkey to enable the following keys TARE ZERO Print softkey Select softkey Recall softkey DBase softkey Accum softkeys Base softkey OFF softkey Clear softkey All these keys can be enabled by the firmware in the PC 820 but the BASIC application in the PC 820 will need additional code for these keys to function Press the Values softkey to enable the viewing of the following values when you press the Select softkey This assumes you have the Select softkey enabled 0 Gross default is Yes 1 Net default is Yes 2 Tare default is Yes Minimum default is No 4 Maximum default is No 5 Rate of Change default is No 6 Gross Total default is No PC 820 821 Parts Counter Service Manual Display Softkey See Appendix A Avail able PC 820 Displays for examples of each display mode When this key is enabled it allows the display to toggle through all the display modes found in Appen dix A This allows the tare annunciator on the display to distinguish between a semi automatic tare SAT is a European term same as push button tare in USA and a preset tare PST is a European term same as entered or recalled tare in USA Date Softkey Print Fm Softke
38. SET 4 SSCU EXTERNAL I O CONTROL MAIN COMPUTER amp I NOTE designates Active Low Signal P N 30908 0016 2 REC B EN 3 XMTB 8 5 EXTERNAL BP esR 12 CABLE ASSY 1 J7 4 No connection P N 46839 0018mts P N 46850 0012 1 5 SIG GND OPTIONAL BLK 2 RS 232 QDT 6 No connection 4 1 7 5 7 7 2 COM 1 2 8 85485 8 1 2 08 9 FEMALE 3 XMIT XMIT B RS485 R 5 J 1 9 4 No connection 9 No connection 5 5 Sig gnd Sig gnd 3 SUPPLY 6 5 0 VDC 120 os AME V DC 7 RTS XMIT A RS485 LE n P N 1148 16069 8 CTS REC RS485 DR 242 215 14 15 9 connection 123456 1e03H123H123H123 230 VAC 14 VDC 0 7 L T JUMPER oe seob P N 1148 16070 COM 1 47 JUMPER CHART JUMPER PINS TEF ON RS 232 RS 485 BATTERY 6V 3 2AH P12 182 RTS ge P33 P N 15553 0082 2 amp 3 OPTIONAL P13 1 amp 2 XMIT INTERNAL BATTERY CHARGER BATTERY TD CHARGER BOARD 54 2 BOARD CABLE P14 1 amp 2 CTS P N 51770 0019 3 51809 0014 283 OPTIONAL P15 1 amp 2 ROV BATTERY 6V 3 2AH 283 RCV
39. SIDE PANEL 1069 14604 2 6 SUPPORT POST w SIDE HOLE 1058 14424 2 THREADED SPRING PLUNGER 1068 14610 2 8 1091 14144 1 9 10 32 14506 0059 1 10 SCREW 6 32 x 31 LG 1001 13790 2 11 STANDOFF 6 32 x 31 LG 1044 00121 2 12 VINYL CAP 1051 13968 2 13 SCREW 25 20 x 50 LG 1007 00538 4 30 820 821 COUNTING SCALE MAIN BD TO DISPLAY CABLE 50 Ib 25 kg AND 100 Ib 50 kg cap 12 x 14 Base PARTS AND ASSEMBLY For more details for all PC boards including certain component part ITEM numbers ref the PC board assy NO DESCRIPTION W T P N QTY pages in this manual 1 Main Bd to Display Cable Assy 51751 0012 1 2 Shroud Dished stainless 1076 16556 1 3 Quartzell Assy 50 b 25kg cap 7153 16863 25 1 Quartzell Assy 100 b 50kg cap 7153 16863 50 1 Quartzell Board EPROM Programmed not shown 1150 16263 1 p EE 4 Screw 10 32 x 3 8 L 1006 02039 2 __ 5 Standoff m f 6 x 1 4 x 9 16 L 15437 5000 4 P 22 8 6 Connector Mtg Bracket 1067 16154 1 TORQUE TD 61 38 7 Standoff f
40. TION TERMINATION RED 1 1 P2 1 7 5 BLUE 1 2 P2 2 REC B YELLOW Pl 3 Pe 3 XMT B ELTRON PRINTER TO 820 7821 CABLE ASSY P N 52002 0017 BLACK P1 5 5 GROUND SIGNAL NAMES WEIGH TRONIX RIGIN DESTINATION SIGNAL ARE FROM E 525 WIRE CULDR ERMINATION TERMINATION GREEN 1 7 2 7 INDICATUR WHITE P1 8 P2 8 REC A DRAIN WIRE NC NC SHIELD DRAIN WIRE SHELL SHELL SHIELD RED P1 3 P2 5 TXD BLACK P1 5 P2 10 GND PIN 1 PIN 9 PIN 1 PIN 1 T 0 0 36 Pe 1 94 CONNECT REMOTE QDT BD J26 CONNECT 10 QDI BASE PIN 1 COM 9 OUTSIDE VIEW OUTSIDE VIEW PIN 9 CONNECT TU PRINTER Bios INDICATOR PIN 15 MALE MALE DUTSIDE VIEM DUTSIDE VIEW C MALE C MALE 820cab2 B20cabe COM 1 CABLE ASSEMBLIES P N 58039 0014 AND 0022 RIGIN DESTINAT m NAL ELTRON PRINTER TO OCTAPUS CABLE CABLE ASSY P N 52001 0018 WIRE COLAR TERM TERMINAL WE IGH TRINIX RIGIN DESTINATI YELLOW P1 2 Pe 3 SCALE RXD WIRE COLOR TERMINATION TERMINATION GREEN P1 3 P2 2 SCALE TXD RAIN AUTRE m SHIELD BLACK 1 5 2 5 SIGNAL GROUND RED P1 3 Je 3 TXD ORANGE Pl 7 Pe 8 SCALE RTS ARE FROM BLACK P1 5 98 7 GND BROWN P1 8 P2 7 SCALE CTS INDICATOR DRAIN WIRE SHELL SHELL SHIELD PIN 1 TO CUM 1 7 gt 820 821 INDICATO 0014 VERSIUN SIN S P1 Je 6 PIN 1 OUTSIDE VIEW P2 CONNECT ELTRON PRINTER
41. XTERNAL ZEUS OUTSIDE VIEW DUTSIDE VIEW MALE C MALE 820cob3 ITEM NO DESCRIPTION W T P N QTY 1 Ribbon Cable 52962 0015 1 2 Antenna Mtg Plate 53549 0015 1 3 Screw 4 x 5 16 L 14473 0116 4 4 Screw 6 x 3 8 L 14473 0249 4 5 Standoff m f 6 15437 5000 4 6 ANTENNA 2 2 dbi approx 500 ft range 48686 0067 1 5 1 2 articulating 90 degree 3 dbi approx 800 ft 48686 0075 1 9 1 2 articulating 90 degree 5 dbi approx 1 000 ft 48686 0083 1 7 Cable assy External Zeus unit to PC 6 ft 53868 0034 1 8 Cable assy External Zeus unit to Scale 6 ft 53868 0042 1 DUE te ig WEIGH TRONIX CHART PART DESCRIPTIUN 47192 0017 STAINLESS 47192 0025 PAINTED CARBON DIM A 82055 VIEW PC 820 821 COUNTING SCALE SOLID STATE CONTROL UNIT SSCU PARTS AND ASSEMBLY ITEM NO DESCRIPTION W TP N 1 Strain Relief 22380 0053 1 2 Strain Relief 15257 0024 2 3 Sscu Interface Cable 9 pin 47388 0029 1 Sscu Interface Cable 15 pin 47388 0037 1 4 Enclosure St
42. ad Stop Pin 100Ib 50kg 1090 16074 50 4 pd 33 Ball Top Shroud optional 7076 15118 1 34 Lock Screw load cell overload 1011 15213 1 35 Cable Assy Quartzell to main 7140 15668 1 36 Screw 426 32 x 1009 10039 2 37 Screw 46 32 5 8 L 1006 16265 1 38 Display Enclosure Top 1069 15966 1 39 Display Enclosure Bottom 1069 15967 1 40 Keypad Backer Plate Assy 51938 0018 1 Sane 41 Display Keypad Intfc Board Assy PC 820 50912 0028 1 PC BOARD ASSY AND DISPLAY ASSY Display Keypad Intfc Board Assy 821 50912 0010 1 COHERENT AIG CERI 43 Display LCD w Backlite PC 820 48622 1021 1 lt M 44 Display LCD w o Backlite PC 821 48622 1013 1 45 Screw 6 x 7 1006 02598 5 N 46 Shroud Pad with Ground strip 1075 16616 1 pair 47 Standoff m f 6 x 1 4 HX x 3 8 L use w 821 only 15437 0423 6 48 Complete PC 820 Display Head Assy 7131 15964ser 1 Optional items not shown SHIPPING INSERT Remote QDT Base cable Assy 10 ft length 49387 0026 1 DONETE RENOME Bar Code Gun w cable 48549 1039 1 2 gt Standard Keyboard alpha numeric 47853 0017 1 Tufkey spill resistant Keyboard alpha numeric 47854 0016 1 lt gt External Battery BP 25R 12vdc w Charger see system lt block diagram for connection location 46839 0018mts 1 Interface Cable to 820 821 for BP 25R 6 ft long 46850 0012mts 1 usu Internal Battery Kit 12vdc w Charger PC 51799 0057mts 1 90 5 inlbs F Cable 9 pin RS 232 comput
43. al Entering the Menu The display will instruct you how to exit from a display screen Press ESCAPE to back out of most screens This will cancel any values you ve keyed in Press ENTER to accept changed values Test Menu To enter the menu press and hold the ESCAPE key until the unit beeps The menu structure is pictured in Figure 2 The words in the rectangles represent softkeys you will see on the display Upon entering the menu the display shows the following softkeys About Press this softkey to see the scale model name firmware version license number and licensed company of the downloader program the file name download time and date the file was downloaded Audit Press this softkey to display the calibration and configuration audit trail counters The configuration counter increments each time the configuration menu is accessed or when a new configu ration file is downloaded The calibration counter increments each time a base is calibrated These numbers cannot be erased or changed by the user Test Press this softkey to access the test menus for the display keypad local or remote Quartzell bases or a remote analog base serial ports outputs and inputs Follow prompts on the display to accomplish these tests See Figure 3 and the Test Menu section below for more information Setup Press this softkey to access the password protected menus The names and passwords for the Setup menus are User menu password 111
44. and piece weight Database is very flexible and number of records is dependent upon record content and BASIC application Scale has 2 power saving timers one controls backlight and another has capability of shutting the scale off Any keypress wakes the scale PC 820 821 Parts Counter Service Manual Introduction About This Manual References to the PC 820 also apply to the PC 821 you upgrade the firmware the scale you must download your software program from SimPoser PC 820 Description To increase the contrast of the display press and hold the CLEAR and 9 keys until the desired contrast is reached To decrease contrast press and hold the CLEAR and 3 keys Warning The unit must be plugged into an easily accessible outlet that is earth grounded and of the appropriate voltage This manual covers the information you need to configure and service your PC 820 parts counting scale Major sections of this manual are headed by titles in a black bar like Introduction above Subheadings appear in the left column Instructions and text appear on the right side of the page Occasionally notes tips and special instructions appear in the left column The PC 820 is a 12 x 14 scale with an attached 5 x 12 display housing See Figure 1 The scale base is cast aluminum enclosing a Quartzell weight sensor and electronics package The scale platter is stainless steel 000 Figure
45. ap 42 INTE ACE heH VOLTAGE ANALOG SIGNAL 7153 16863 25 50 1 25 dad 1 SIGNAL 7153 16863 50 100 50 kg cap 2 SIGNAL R 3 EXCITATION COM 2 J9 4 EXCITATION SIGNAL DEVICE 5 SENSE ANALOG REMOTE DISPLAY INTERFACE PIN NAME USED WITH SPECIAL NOTES 6 08 9 MALE CABLE P N 51751 0012 B 1 TTL Keyboard TTL DATA IN do not 7 No connection vug 2 ea 2 RS 232 B Magnetic Card Reader Keyboard RS 232 DATA IN do not 8 SENSE 090129508 o 3 RECV RS 232 A Scanner RS 232 DATA IN do not gnd 166 o es 4 5 0 VDC Scanner do not gnd 2 GND dB alo 0612 5 232 Printer Computer Remote Displ P23 Modem RF link IR link RS 232 DATA OUT P3 zli ells P6 1 6 SDA SSCU EXTERNAL CONTROL 7 7 SCL SSCU EXTERNAL I O CONTROL 75 3 2 ANALOG QUARTZELL 18 4 8 INT SSCU EXTERNAL I O CONTROL QDT REMOTE Ne 4 7 9 5 0 VDC Keyboard SIGGND 5 52111 0015 7 10 GROUND Keyboard DB 9 FEMALE Nes J26 OPTIONAL 44 4 19 5 2 11 GROUND GND Scanner REC H 5 T DB 15 FEMALE 12 GROUND GND Printer Computer RemoteDispl Modem 9 L oo E RS 232 RF link IR link RS 232 26 25 2526 13 13 GROUND GND SSCU EXTERNAL I O CONTROL n 14 5 0 VDC SSCU EXTERNAL I O CONTROL J26 820 821 15 RE
46. at zero the center of zero icon will be dis played When scale motion ceases the stability symbol will appear above the center of zero icon With an empty container on the scale press the TARE key to enter an active tare weight The display shows net weight Press the ENTER key to accept displayed information whether it is numeric characters you have keyed in or if it is a choice displayed while in the menus Press the CLEAR key to clear a displayed number while in the data entry mode Use the numeric keys for entering in numbers or a decimal Press this key to scroll through extra softkeys available in some applications and to move to the right in the menus Press this key to scroll through extra softkeys available in some applications and to move to the left in the menus PC 820 Menus Information about the scale testing functions data management scale configuration and calibration are accessed through menus some of which are protected by passwords The password protected menus appear under Setup The user menu is also protected by a password It is covered in the User s Manual Normal Operation Press and hold ESCAPE for five seconds Audit Test Setup Off displays displays Expanded Expanded Turns scale off model name calibration Figure 3 in Figure 4 firmware and version etc configuration audit trail counters Figure 2 Menu Structure 6 PC 820 821 Parts Counter Service Manu
47. ation Allows you to Activate Deactivate any output setpoints you are using on the SSCU8 to verify correct hardware operation during installation or for troubleshooting purposes The same as Outputs except you are activating an input setpoint device such as a switch or contact closure remotely and monitoring it with this menu PC 820 821 Parts Counter Service Manual Setup Menus User Menu password is 111 Set Softkey This section covers the User Configuration and Calibration menus shown in Figure 4a and 4b The user menu is explained below Refer to Figure 4a Access this menu by followin 1 Press g these steps and hold the ESCAPE key until the scale beeps and new softkeys appear 2 Press the SETUP softkey Scale prompts for a password 3 Keyin Press Set 111 and press ENTER New softkeys appear Set Select and BASIC Each of these are discussed below The following softkeys are displayed Clock Tare Pc Wt Peaks Accum Graph PC 820 821 Follow the prompts on the screen to set the time and date Prompts you to enter a tare value Use this when you want to set a long term tare value for all scales If you set this tare you should disable the TARE key See the Service Manual Prompts you to enter a piece weight value Use this when you want to set a long term piece weight value If you set this tare you should disable the SAMPLE softkey See the Service Manual Pro
48. cable Assy 10 ft length 49387 0026 1 Bar Code Gun w cable 48549 1039 1 Standard Keyboard alpha numeric 47853 0017 1 Tufkey Keyboard alpha numeric spill resistant 47854 0016 1 External Battery BP 25R 12vdc w Charger see system block diagram for connection location 46839 0018mts 1 Interface Cable to 820 821 for BP 25R 6 ft long 46850 0012mts 1 Internal Battery Kit 12vdc w Charger PC Bd 51799 0057mts 1 Cable 9 pin RS 232 computer or scanner 51800 0013 1 Cable 25 pin RS 232 Null Modem printer 51800 0021 1 Cable 9 pin SSCU only 51800 0039 1 Cable PC serial keyboards 51800 0047 1 2 Device Cable 9 pin Scanner and 25 pin Printer 51800 0054 1 4 Device Cable 9 pin Scanner 25 pin Printer 9 pin SSCU PC keyboard 51800 0112 1 Interface Cable 6 ft to remote the display assy 53970 0013 1 29 SQ SSX 0 NO DISCARDE PC 820 821 COUNTING SCALE DRAFT SHIELD optional 10 Ib 5 kg 12 x 14 base only PARTS AND ASSEMBLY complete assy p n 7200 15397 ITEM NO DESCRIPTION W T P N RNER RODS 1 SUPPORT POST 1058 15413 2 2 SHIELD DOOR 1069 15404 1 3 SHIELD TOP PANEL 1069 15403 1 4 SHIELD REAR PANEL 1069 15406 1 5 SHIELD
49. e scale is unplugged from wall outlet Press any key to verify that scale turns on and operates 17 Press off key to verify scale turns off IMPORTANT SCALE MUST BE PLUGGED IN TO WALL OUTLET AND TURNED OFF TO PERFORM VOLTAGE CHECK AND OR CHARGE THE BATTERIES 18 Connect power cord to wall outlet and verify that the battery voltage is higher than 12 5 VDC and is increasing 19 When the battery is 9096 of full charge the green LED DS1 on charger board will flash on and off When fully charged the LED will stay on continuously BATTERY DOES NOT NEED TO BE 10096 CHARGED Normal charging time is approximately 4 6 hr If battery is totally discharged a longer charging time may be necessary The charger system will automatically shut off when battery is fully charged 20 When the green LED begins to flash unplug the scale and reinstall the loadbridge and shroud Using a torque wrench tighten the load bridge bolts to specs 90 5 ft Ibs 14 08 17 50 sooo 820011 PC 820 821 COUNTING SCALE SCALES AND BASES DIMENSIONAL OUTLINE FOR 12 x 14 BASE BALL TOP OPTION BALL TUP BALL SPACINGS f
50. eel Painted 47665 0031 1 5 Enclosure Stainless 47665 0049 1 6 Remote 16 TTL Control I O Pc Bd 49853 0013 1 Remote 8 Solid State Control I O Pc Bd 47183 0018 1 7 Lock Nut Self Sealing 22381 00111 1 cot g WEIGH TRONIX J 9 PIN SSCU INTERFACE CABLE P N 47388 0029 oa ORIGIN DESTINATION SIGNAL WIRE COLOR TERMINATION TERMINATION ORANGE TB37 1 SCL YELLOW TB37 2 SDA GREEN TB37 3 INT BLACK 37 4 GND RED TB37 5 5 BROWN TB37 6 RESET SHIELD SHELL TB37 7 SHIELD PIN 1 OUTSIDE VIEW FEMALE CONNECT TO SSCU 820ssc A 15 PIN SSCU INTERFACE CABLE ASSY P N 47388 0037 vigere ORIGIN DESTINATION WIRE COLOR TERMINATION TERMINATION ORANGE F9 7 TB37 1 SCL YELLOW P9 6 TB37 2 SDA GREEN 9 8 37 3 BLACK P9 10 37 4 GND RED 9 14 TB37 5 5V BROWN p9 15 TB37 6 RESET SHIELD P9 11 TB37 7 SHIELD PIN 15 DUTSIDE VIEW lt MALE CUNNECT SSCU CDM e 41 PC 820 821 COUNTING SCALE SSCU 8 REMOTE EXPANDED CONTROL I O BOARD P N 47183 0018
51. er or scanner 51800 0013 1 74 P 2 Cable 25 pin RS 232 Null Modem printer 51800 0021 1 3 ONLY 6 Cable 9 SSCU only 51800 0039 1 Cable PC serial keyboards 51800 0047 1 2 Device Cable 9 pin Scanner and 25 pin Printer 51800 0054 1 lt places 4 Device Cable 9 pin Scanner 25 pin Printer 9 pin SSCU PC keyboard 51800 0112 1 Interface Cable 6 ft to remote the display assy 53970 0013 1 820dsp 31 PC 820 821 COUNTING SCALE SYSTEM WIRING BLOCK DIAGRAM 1 1 KEYPAD ASSY P18 mH KEYPAD ASSY P18 P N 51938 0018 J19 DISPLAY BOARD ASSY P N 51938 0018 BLU w BACKLITE 15 PC 820 P N 48622 1021 15 PC 821 NOTE a 20 For remote base wiring information Ref r2 m 112 DISPLAY K PAD INTFC BD Bench Scale Bases installation manual 9 5 DISPLAY K PAD BD o P N 50912 0010 P N 16783 0017 shipped with your base P N 50912 0028 1 m P17 1 BACKLITE CABLE FROM 17 J20 w o BACKLITE 21 2 at DISPLAY BD ASSY P N 48622 1021 E PSI 4 ae 2 QUARTZELL PC BOARD L BG L 2919 TRANSDUCER 100 QUARTZELL MAIN MEER EP S I 1Ni ABLE 23 7153 15694 05 10 5 kg c
52. eul EXTERNAL ZEUS RF IDENTIFICATION DECAL USE ONE OF THE TWO STANDOFFS INCLUDED IN BATTERY KIT WHEN INSTALLING BATTERY BOARD OPTION 027 CONNECTOR ON COMPUTER 1 0 BOARD PC 820 821 COUNTING SCALE ZEUS KITS INTERNAL AND EXTERNAL REMOTE RADIO amp SCALE SOLD SEPERATELY ZEUS ANTENNA CONNECTOR CUSTOMER ANTENNA CONNECTS TO THIS CONNECTOR ZEUS RIBBON CABLE CONNECTS WITH U27 40 PIN 1 PIN 9 OUTSIDE VIEW MALE EXTERNAL ZEUS CUNNECT PC EXTERNAL ZEUS TO PC CABLE ASSEMBLY P N 53868 0034 6 Ft WE IGH TRONIX RIGIN DESTINATION SIGNAL WIRE COLOR TERMINATION TERMINATION RED P1 2 GREEN P1 3 P2 3 TX SIGNAL NAMES BLACK 1 5 5 GROUND FROM PIN 1 85 Bg P i P1 0 9 Pe 9 OUTSIDE VIEW FEMALE 820cab3 EXTERNAL ZEUS TO COM 1 SCALE CABLE ASSY P N 53868 0042 6 Ft gt ORIGIN DESTINATION WE IGH TRONIX WIRE COLOR TERMINATION TERMINATION SIGNAL RED Pise Pe e REC GREEN P1 3 2 3 TX SIGNAL NAMES ARE FROM BLACK Piss Pe 5 GROUND INDICATOR PIN 1 PIN 9 a pi 9 _ 2 1 gt 90 SING CONNECT TO SCALE CDM 1 CONNECT TO E
53. f 6 x 7 HX x 9 16 L 1044 16184 4 lbs 8 Display Mtg Plate 1069 16135 1 9 8 i Gui 9 Loadbridge 1066 15993 1 i 10 Capscrew 1 4 20 X 1 0011 1007 02617 4 11 50908 0016 1 12 Power Supply 120VAC 14VDC 07amp 1148 16069 1 Power Supply 230VAC 14VDC 0 7 1148 16070 1 SPEC STALE SHOWING 13 Pwr Supply Bracket 1067 15647 1 P N 1070 60107 REMOTE ANALOG QUARTZELL OPTION 14 Sealing Cover Label 1070 60103 1 15 Screw 6 X 38 L 1009 05758 7 77 77 zs E 77 1 16 Neoprene Pad Conductive 62 dia 60068 0011 5 17 Foot Assy 7075 15475 03 4 ENLARGED CLARITY 18 Bolt 4 x 1 01 14527 0054 4 VIEWED FROM FRONT p 19 Standoff f f 6 x 7 HX x 1 use w 820 only 1044 16185 4 OF SCALE Standoff f f 6 x HX x 7 8 L use w 821 only 1044 16185 4 hy 20 Standoff m f 4 x 3 16HEX x 3 16 L 1044 01085 8 acc 21 Cable Clamp 1074 00392 1 22 Level Bubble 1083 00095 1 23 Adhesive Tape for bubble 1045 13049 1 24 Flat Washer 1 4 1029 80008 4 25 Access Security Cover 1069 15766 1 26 Base 7069 16183 01 1 27 Remote Analog QDT PC Board optional 52107 0011 1 Kit for Above Incl Board hardware decal 52111 0015 1 28 Shipping Block 1084 15131 1 29 Load Stop Pin 50 6 25kg 1090 16074 32 4 8 places Lo
54. ing Display Update 10 sec Ave 8 disp or 48 A Ds Constant Level 4 Threshold Zero To find the best settings for your filter needs follow the steps listed below 1 What to Do Determine the amount of positive and negative force exerted by the vibration on the scale How to Do It Set Threshld to 0 0 Constant to OFF and Samples to Average to 1 0 A Ds Return to weigh mode and observe the weight swings Record the difference between the highest and lowest displayed weight values Add 30 to 50 to this value This is a good starting value for the Threshld setting Do not set your indicator to this value until told to in step 7 Setting the Average to higher values increases the filtering effect What to Do Set Threshld to 0 0 Constant to OFF and Samples to Average to 12 0 A Ds Check the stability of the scale How to Do It Save changes and exit to normal weight mode Observe the Center of Zero light If it is on all the time your scale is stable within 1 4 division If the Center of Zero light blinks more filtering is required Go to step 3 Repeat step 2 but increase the Samples to Average by 12 0 A Ds Keep repeating steps 2 and 3 until the scale is stable or you ve tried the entire range of Samples to Average 60 A Ds If the scale is still not stable go to step 4 Setting the Constant to higher values increases the filtering effect What to Do Set Threshld to 0 0 Constant to 1 0 and
55. mpts if you want to clear the minimum and maximum peak values in memory Display gives you YES and NO softkeys Prompts if you want to clear all accumulators Display gives you YES and NO softkeys You are then asked if you want to enable or disable count subtracting Choose from YES or NO Prompts you to key in values for each of the following values used when in checkweigher display Min for minimum value Under for lowest acceptable target weight Over for highest acceptable target weight Max for maximum value Basis select the basis from this list of values 0 Gross 1 Net 2 3 Min 4 5 ROC 6 Gross total 7 Net total 8 Count total 9 Transaction total 10 Count 11 Variable 12 Piece weight 13 Parts Counter Service Manual 9 Normal Operation T Press and hold ESCAPE for five seconds key in 111 password Set Select BASIC To see see all variables in values BASIC stored in program non volatile memory 8192 numeric locations 4096 string locations Display key in 2045 password Configuration key in 30456 password Calibration Turns scale off Local Remote 1 2 Exit Display Setup Zero Capacity
56. n the current port and what format is assigned to it for formats 1 16 The display is shown like this format port 1 1 2 1 3 1 4 1 5 1 6 1 7 1 8 1 1 10 1 11 1 12 1 9 13 1 14 1 15 1 16 1 The Edit softkey lets you change a setting The Next softkey lets you view formats 17 32 Press Done when you are finished The Base softkey gives you access to all the configuration parameters for all enabled bases See Scale Bases to enable remotes You are given the choice of which base to configure Local Remote 1 or Remote 2 After you make the choice the following softkeys appear Press the Enable softkey to enable or disable the current base When the base is disabled the base is not available for selection by the user and the base is ignored on power up Press the Cap Div softkey to enter the capacity and division size Press the Zero softkey to enter a zero range 0 100 for the ZERO key Default is 100 Also you can enable or disable default is disabled an automatic zeroing of the scale on power up If enabled the scale will power up and zero any weight on the scale disabled the scale will show any weight on the scale at power up Press the Stable softkey to set the stability range in divisions and the stability delay in seconds For example if you set the range to three divisions and the delay to one second if the weight value does not change more than three di
57. nnected For Quartzell bases you will see a screen similar to this Quartzell Base S N 735769 Raw Counts 81654 Ft 47253 301 47212 416 D 30Kg 10000d vD A LOCAL Press ESCAPE to return This screen shows you the serial number of the Quartzell in the currently selected base the raw counts from the cell which should be stable 200 counts and increase when weight is applied the tension frequency Ft and compression frequency Fc Each should be as stable as the other and within 10 of each other As weight increases the tension count should increase and the compression count should decrease Cell size 30Kg for example Display resolution for maxi mum efficiency 10000 is shown Software version of the cell vD A in this example For analog bases you are shown araw count value and its equivalent mV V value These values should be positive and increase as weight is applied Use this to test your ports Select Port 1 2 or 3 then short the TX and RX on the selected port The display will change from NO LOOP to LOOP indicating the port is good Port 1 is Comm1 a 9 pin connector Short pins 2 and 3 for Loop No Loop test Short pins 7 and 8 for Ready Busy test Port 2 is 2 15 pin connector Short pins 3 and 5 for Loop No Loop test on RS 232 A Short pins 2 and 5 for Loop No Loop test on RS 232 B Port 3 is the local Quartzell Use the local base test to verify current cell communic
58. ommand response represents a floating point ASCII string value that can have a varying number of digits to the left and right of the decimal point location Also there may be a leading minus sign character to indicate nega tive polarity alphanumeric characters hours minutes AM or PM day of week day of month Computer commands and responses PC 820 821 Parts Counter Service Manual 23 Scale Status Byte Definitions 24 Status Byte H bit 76543210 set 0011XXXX 1 Status Byte M bit 76543210 set 0011 1 1 1 Status Byte bit 76543210 set 0011 0 in motion at zero center zero under capacity tare active negative over capacity PROM checksum error faulty calibration low battery unused unused unused PC 820 821 Parts Counter Service Manual Appendix Available 820 Displays gt Mode 6 2 7 Mode 7 Mode 3 Mode 8 Mode4 Mode 9 Mode 5 Mode 10 820 821 Parts Counter Service Manual 25 N k o o o 26 820 821 Parts Counter Service Manual Appendix B Tips Using Harmonizer Do not use Harmonizer with QDT Quartzell bases We recommend the following values as a starting point for Harmonizer filter
59. or the interval Key this in and press ENTER PC 820 821 Parts Counter Service Manual 19 Serial Softkey Press the Serial softkey to configure the serial port parameters Choose from Port 1 or Port 2 The choices under each are the same They are as follows Parity Baud Rate 300 1200 2400 4800 9600 19200 38400 and 56700 rong 15 90 Bis Data Bits Party Parity None Odd Even Set and Clear Odd 102 7 Odd pata Bits 7 or8 Even tor2 7 Even Se 2 Handshake NONE CTS or Both Clear 8 Port Mode BASIC Keyb rd Disable Port 2 only has Split and Dual Port 1 only has PWLU PWLU is for Piece Weight Lookup DUAL MODE Dual Mode allows for 2 BASIC CON TROL devices to be connected to Port 2 A COM2 MESSAGE event responds to data received on Com 2 A while a COM2B MESSAGE responds to data received on Com 2 REC B The only stipulation is that the 2 devices on Com Port 2 cannot send data at the same time This mode is useful if you have 2 devices which may send data and you need to be able to differentiate the data received from the 2 de vices EX a bar code scanner and a magnetic strip reader SPLIT MODE Split Mode allows for a KEYBOARD and a BASIC CONTROL device to be connected to Port 2 The port works like BASIC CONTROL for data re ceived on Com 2 REC A while also allowing for KEY BOARD data to be received on Com 2 REC B
60. ored PC 820 821 Parts Counter Service Manual Interval Softkey When tares are configured for Rounded the PC 820 only allows them to be captured or entered up to the Interval 1 capacity Tares greater than the Interval 1 capacity are rejected Press the Intrval softkey to set the multi interval option The multi interval option allows you to specify an alternate division size for the first X pounds you place on the scale X is the interval size which you specify When multi interval is enabled the division used to check for stability center of zero and AZT is always the Interval 1 division Overload and underload is always calculated based on the normal division size The displaying and printing division size depends on which interval the scale is in The active interval is chosen based on net when when a tare weight is active and gross weight when a tare is not active When weight gross or net is below the Interval 1 capacity the Interval 1 division size is used If the weight is above the Interval 1 capacity the standard division is used When gross is displayed or printed regardless of the tare value the division size used depends on the interval used Choose YES to enable or NO to disable multi interval then press ENTER If you choose YES the unit defaults to an interval size of one half of capac ity You can key in any interval size you want After entering the interval size you are prompted to enter the division size f
61. rrent division size before calculations are performed Press the RTZ softkey to set the Print Return to Zero and Accumulate Return to Zero Set these as a percentage of scale capacity Enter in an amount from 0 100 To disable RTZ enter a zero for the percent Print Return to Zero means if you press the PRINT key with weight above this value a print operation will occur if and when motion stops then the weight must fall below this percentage of scale capacity before another print operation will be allowed Default value is O which disables RTZ Accumulate Return to Zero means if you perform an accumulation with weight above this value an accumulation operation will occur if and when motion stops then the weight must fall below this percentage of scale capacity before another accumulation operation will be allowed Default value is 0 which disables RTZ Press the TimeOut softkey to set the timeout value in seconds for each of the following parameters default is O for all Print timeout Accumulate timeout Zero timeout Tare timeout Sample timeout Timeout is the amount of time the PC 820 will wait for motion to cease and perform the function after the key is pressed For example if Zero Timeout is set to 3 seconds when the ZERO key is pressed the unit will zero the scale if there is no motion If there is motion and motion ceases within 3 seconds the unit will zero the scale If motion doesn t cease the key press is ign
62. rtzells and analog bases If ROC Samples is set to 50 the PC 820 is determining the rate of weight change over one full second ROC Mult The ROC Multiplier allows you to enter a conversion factor to translate weight to some other unit of measure such as gallons piece weight or some other weight unit based upon the calibration unit of measure PC 820 821 Parts Counter Service Manual 17 Ranges Softkey Tare Softkey RTZ Softkey TimeOut Softkey Press the Ranges softkey to set the overload and underload limits You can base the range on deadload or zero and then choose an over and under range limit If you choose deadload as the basis the overload and underload ranges are based on calibration zero and the ranges are en tered as a percent of capacity Default is deadload and 102 5 of capacity If you choose Zero as the basis the overload and underload ranges are based on current zero and the ranges are entered as a number of divisions over capacity Default is 9 for both over and under Press the Tare softkey to select between live tare value and recalled or entered tare value When you have chosen you are then prompted to choose between FullRes full resolution or Rounded FullRes allows the scale to use its maximum internal resolution 2 000 000 to set tare This allows tare values to be double precision floating decimal point This is usually used for counting scale applications Choosing Rounded causes rounding to the cu
63. softkey is en abled the units softkey moves one screen to the right Values Softkey 14 helps lock onto a count value when piece weights are less than a division size Choose Fast for some filtering and Slow for more filtering Sample Latching Off 1 piece 2 pcs Latching if enabled gives the appearance of stability immediately following the sample process The sample latch is broken when motion is detected or if the calcu lated count is over two pieces away from the sample size The latch will not function again until another sample process is completed Press the Sleep softkey to enable or disable the sleep timer and the backlight timer If you enable default is disabled the sleep timer you are prompted for a time in minutes default is 10 then prompted to enable or disable a sleep warning beeper default is Yes If no scale activity occurs in this period the scale will turn itself off preceded by a series of warning beeps Press any key to reactivate the scale You are also prompted to enable the backlight timer default is yes If you choose Yes you are prompted for a time in minutes default is 5 After no scale activity for the specified time the backlight will turn off Press any key to reactivate the backlight Scale motion also turns the backlight on The sleep and backlight timers reset when there is motion a keypress remote input or a keypress from a remote keypad The sleep timer also resets upon a BASI
64. stom unit you are asked to key in a multiplication factor based on the calibration unit of measure to be used to calculate the custom unit PC 820 821 Parts Counter Service Manual Count Softkey Press the Count softkey to set the following counting parameters sMode Without a BASIC application you will not be able to do a sample routine sSize sWeight Piece weight rounding occurs pw Rnd after the piece weight has been calculated Base Sw Options Latch Sample Mode Choose from Bulk or Dribble default is Bulk Bulk mode Place all of the sample on scale at one time After motion stops the count is automatically displayed Dribble mode Place sample on scale then press ENTER After motion stops the count is displayed Sample Size Key in a minimum sample size default is 5 Minimum Percentage Sample Accuracy Choose from OFF 95 98 or 99 default is 98 Minimum Sample Weight as percentage of full scale Choose from 0 01 0 005 0 002 and 0 001 default is 0 001 Piece Weight Rounding Choose from OFF 0 5 1 and 2 default is OFF Base Switching You must have selected and config ured a remote base for this function to work Choose to enable or disable auto base switching mode default is No Auto base switching lets you perform sampling on one scale local or remote and the scale will automatically switch to another scale for counting If
65. t 35 60 25mA 10 30 Cto 70 C G4IAC5 AC DC input 90 140 11mA 11 30 Cto 70 C G4IAC5A AC DC input 180 280 6 5 2 30 Cto 70 G40DC5 DC ouput 5 60 vdc only 3A 45 C 30 Cto 70 C Normally Open 2 70 G4ODC5A output 5 200 vdc only 1A 45 C 30 Cto 70 C Normally Open 0 55A 70 C G40AC5 output 12 140 AC only 3A 45 C 30 Cto 70 C Normally Open 2A 70 C G4OAC5A output 24 280 AC only 3A 45 C 30 Cto 70 C Normally Open 2A 70 C G4OAC5A6 AC output N C 24 280 AC only 3A 45 C 30 Cto 70 C Normally Closed 2A 70 C 4 5 AC DC output 130VAC 100VDC 1 5A 0 C to 70 C N O Dry contact Normally Open G4ODC5R5 AC DC output 130VAC 100VDC 0 C to 70 C N C Dry contact Normally Closed 15 68 16 9579494 646 sene 20 40 8 22 25 19373 25 20 3 5 365 set 40 0 8 423 50 0114 19373 500 0221 19373K 6 3A Each I O module has an LED that lights indicating an active state The output modules also have a replaceable fuse for circuit protection These modules are LOW CURRENT devices Refer to OPTO 22 data specifications for additional information Below is a diagram of the different I O control modules
66. ted scale If you are using a Quartzell base the serial number of the Quartzell is displayed This is a alternate place for setting the capacity and division size You can also do this under the BASE section of the Configuration menu If you change it in one place it automatically changes in the other menu If you press the Remote 1 softkey you can then choose between analog or Quartzell base Quartzell is the default setting for Remote 1 Remote 2 is always an analog base if it is used Press the Zero softkey to start the zero part of the calibration process The display prompts you to remove any load from the scale and press ENTER When you do the display will show Determining Zero and then say Done Press any key to continue After you press a key the display returns to the previous softkey selection Press the Span softkey to start the span part of the calibration process The display first prompts you to enter the calibration unit of measure 16 or kgs The scale prompts you to key in a span calibration weight and press ENTER Do this and the display prompts you to place that amount of test weight on the scale and press ENTER When you do the display will show Determining Span and then say Done Press any key to continue After you press a key the display returns to the previous softkey selection and the calibration process is complete If the message No Sense is displayed this means there is a communica tion problem
67. visions in one second the scale is considered stable Default is 1 division and 1 second Press the AZT softkey to set Automatic Zero Tracking AZT range and delay The division size you pick defines a range above and below zero When scale weight is inside this range for the number of seconds you picked 1 2 of the weight will be zeroed The indicator will repeat removing the weight every X seconds X being the number of seconds you have picked Default is 0 5 division and 1 second Set division size to zero to disable AZT PC 820 821 Parts Counter Service Manual Update Softkey Filter Softkey The Harmonizer default is off Harmonizer filtering is not recommended for parts counting applications using Quartzell bases ROC Softkey For example If you have one part that weighs 8 16 you calculate the multiplier using this formula Cal Unit Custom Unit Weight in Cal Units Multiplier So in our example the equa tion becomes 1 8 0 125 and the multiplier is 0 125 Press the Update softkey to select a display update rate from these choices 0 5 Hz 1 Hz 2 Hz 5 Hz Default is 5 hz or five times per second Press the Filter softkey to set up the Harmonizer filtering A full explana tion of the Harmonizer is given below The weight conversion for PC 820 connected bases is Local Quartzell 50 updates second set AVG to 1 Remote Quartzell 6 updates second set AVG to 1
68. with your QDT base Verify correct cable connections then setup the capacity and division size in the calibration menu This forces the PC 820 to scan the QDT cell for its serial number and that may be viewed in the Test menu If the message Reversed is displayed check the connections for reversed Signal and Excitation lines on the analog base Also verify that the scale is empty when capturing the Zero value and that you actually put the test weight on the scale when setting Span PC 820 821 Parts Counter Service Manual 21 Serial Communication Com1 is a 9 pin DE type connector at the rear of the PC 820 The func tional pin out is as follows RS 232 RS 485 _ 2 85881 4 No conn No connection 5 Siggnd Siggnd 6 50VDC No connection 8 CTS REC A RS485 5 No connection Table 1 Port 1 Com 1 pin outs Com 2 is a 15 pin DE type connector at the rear of the PC 820 The functional pin out is as follows SIGNAL NAME DEVICEUSEDWITH SPECIAL NOTES Scanner RS 232 DATA IN do not gnd Printer Computer Remote Display Modem DATA OUT RF link IR link RS 232 Keyboard gt SSS oo Keyboard 1 Scanner GROUND GND Printer Computer Remote Display Modem RS 232 HF link IR link RS 232 NOTE designates Active Low Signal Table 2 Port 2 Com 2 pin outs
69. y 7 Net Total default is No 8 Count Total default is No 9 Transaction Total default is No 10 Count default is Yes 11 Value default is No 12 Piece Weight default is Yes 13 Ato D Counts default is No Press the Display softkey to configure the power up display mode and other display items shown below Enter a value or choice and press the ENTER key for each Power up display mode Choose from 1 20 Default is 2 Power up display value Choose from 310 13 See list above under Values Softkey Default is 1 Power up 2nd display value Choose from 40 13 See list above under Values Softkey Default is 10 Enable HIDDEN key display cycle Default is No Enable lowercase for small text Default is Yes Enable Low Battery indication Default is Yes Enable Preset Tare annunciator Default is off SAT push button PST or Preset Recalled Tare annunciator Tare annunciator Press the Date softkey to choose the date format you want from these choices M D Y Month Day Year D M Y Day Month Year Y M D Year Month Day Default is M D Y Press the Print Fm softkey to configure the port to use for each print format First you choose the default print format Choices are from 0 32 Default is 0 PC 820 821 Parts Counter Service Manual 15 16 Softkey Enable Softkey Cap Div Softkey Zero Softkey Stable Softkey Motion AZT Softkey Next you are show
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