Full Service Manual - Pennsylvania Scale Company
Contents
1. Emery Winslow Scale Company 73 Cogwheel Lane 4530 North 25th Street Seymour CT 06483 Terre Haute IN 47805 203 881 9333 812 466 5265 203 881 9477 FAX 812 466 1046 FAX INSTRUCTION amp SERVICE MANUAL 7400 Digital Indicator Emery 3 Winslow Model 7400E SCALE CO V1 96 TABLE OF CONTENTS SPECIFICATIONS coii iod eura e E20 y oS red oa Pa Ede van 3 INSTALLATION i52 6t n ETE FRn e 3E YEN SESS aa Ee PUES 4 SETUP ACCESS ico iov ox d iO an EAR E Rd 5 MENU LAYOUT aiii antici RE FERCRARUE ERE FE DER On ERE d 6 CONFIGURATION 7 REMOTE SERIAL 8 CALIBRATION 9 SERIAL PORTS eres aka rox EYE ain 10 SERIAL COMMUNICATIONS 11 ANALOG OUTPUT eee 13 DIGITAL 15 SETPOINTS 17 OVER UNDER rana a gabs a Ed Pha ur 17 BATCH MODE Enna 18 TIME invi lend rd vk etr nva enis 19 AC DC OPERATION 25573 anta phun rere a e aRan cS 19 DISPLAY 20 115 220 sidere evi Edna E kn ids 21 SPARE oxi CU a QU ERE REA DRE EROR 22 SPECIFICATIONS LOAD CELL A D CONVERTER TYPE 24 bit delta sigma EXCITATION 5 VDC 120 mA max SIGNAL INPUT 16 mv SENSI2. e g ol ul etc will de energize all relay outputs and abort a batch if one is in progress Four outputs are available to use as two setpoints with main and fast feed single setpoint main and fast feed plus tolerance and zero band Also Pre Act can be applied to the main for material in flight compensation 16 Step Parameter Definition Mode select setpoint over under check 20 OFF SP OU UN At2 Weighing Manual Batch Auto Batch 2 0 SP Setpoint 2 2 Off 81 s1 p s1 d s p d Dual Setpoint 1 pre act drib both Set1 A amp B 2 3 Gr nt dSP Count Setpoint 1 tracks Gross Net Display Count 2 4 POS ZER Output on below reading POS inverted ZER 2 6 Off 82 52 s2 d s2 p d tOL Setpoint 2 pre act dribble both f Dual Tolerance Set2 A amp B 2 7 Gr nt dSP Count Setpoint 2 pre act dribble both 2 8 POS ZER Output on below reading POS inverted ZER 2 10 20 Zero band output input weight value 241 Off On Hysteresis provides 3 grads to prevent relay chatter d SP1 trG Target 1000 Main and Fast Feed are on until reading reaches Sun le SP1 PrE Pre act 5 990 then Fast Feed turns off and Main continues P SP1 drb Dribble lt 10 until Pre act at 995 2 0 OU UN Over Under check weighing 22 Off HL tGt Ck1 High Low band Target and band Check Weighe
3. Inputs D1 D2 are not installed J1 short underside J2 open R1 R4 18k 3w 596 flame proof DC Inputs D1 D2 are installed J1 open cut trace J2 short R1 R4 1 5k 1 2w 5 carbon film AC Outputs Solid State Relays 120VAC 0 5A EW 1000 Rev 15 Option 2 DIO 2 First select the operating mode for Setpoint Over Under Manual or Auto Batch After setup the parameters for the selection are entered from the weighing mode Use Gross Net to enter the menu and step to each category Tare Recall to select parameters ENT to return to menu selection Note external Inputs are enabled in Configuration with 30 DIO Inputs can be configured for 120vac 5vdc or dry contact Normal Batch IN 1 Gross Net Stop IN 2 Tare Start IN 3 Zero Zero IN 4 Print Print DIO Outputs are 120vac 0 5 amp or optional 24 vdc based on operating mode Dual Setpt 1 Setpt 2 Ov Un Man B Auto B Out 1 Setpt1 A Main 1 Main 1 Low Main 1 Main 1 Out 2 Setpt1 B Fast F1 Fast F1 Accept Fast F1 Fast F1 Out 3 Setpt2 A Tol Main 2 High Main 2 Main 2 Out 4 Setpt2 B Zero B Fast F2 Zero Zero Fast F2 Checkweigher Bar graph legends Ck1 3 Out Low Low Accept High Out High Setpoint values are entered from Weighing Mode by the SET key and direct numeric entry Weight errors of any kind
4. Rx Tx 20ma Rx Tx RS485 or RS422 Note Position jumper on J2 for Port 2 receive selection A RS232 B 20ma C RS485 D RS422 Serial Communications Remote Commands lt Z gt lt cr gt Zero Scale Gross mode no motion inside zero range lt N gt lt cr gt Switch to Net Gross mode with Tare stored lt G gt lt cr gt Switch to Gross Net mode lt T gt lt cr gt Auto Tare Switch to Net no motion not at Gross zero lt P gt lt cr gt Print Valid display No motion Data Formats Demand Mode lt stx gt lt pol gt lt DATA gt lt sp gt lt lb kg gt lt sp gt lt GR NT gt lt cr lf gt Continuous Mode lt stx gt lt pol gt lt DATA gt lt L K gt lt G N gt lt status gt lt cr If gt Brackets lt gt are not sent stx Start of Text character ASCII 002 can be removed in continuous config 19 pol Polarity sign SPACE ASCII 032 for positive or sign ASCII 045 for negative sp Space character ASCII 032 DATA Seven 7 digit data field including decimal point or fixed dummy zero if selected Leading Zero Suppression with leading zeros transmitted as space characters Ib kg Two 2 character field data identification for weight units in demand printer mode Weight in Ib Ib ASCII 108 098 weight in kg kg ASCII 107 103 1 character field data identification for weight units in continuous computer nes Weight in Ib L ASCII 07
5. 6 weight in kg K ASCII 075 GR NT Two 2 character field data identification for weighing mode in demand printer mode Gross Mode ASCII 071 082 Net Mode NT ASCII 078 084 11 G N One 1 character field data identification for weighing mode in continuous computer mode Gross Mode ASCII 071 Net Mode ASCII 078 status One 1 character data identification used in the continuous computer output mode to identify the status of the indicator Characters are listed below in order of priority Calibration configuration D ASCII 068 Over Under Range lt gt ASCII 079 Motion lt M gt ASCII 077 Center of Zero lt C gt ASCII 067 None of the above lt sp gt ASCII 032 cr If Two 2 character field Carriage Return ASCII 013 Line Feed ASCII 010 Guidelines for Serial Output Demand format will inhibit print when scale is in motion or with negative Gross weight even in Net mode based on setting CFG 10 Local Network Protocol Command to the indicator lt gt lt DD gt lt 00 gt lt cmd gt lt data entry gt lt CR gt Response from indicator lt gt lt 00 gt lt DD gt lt cmd echoed gt lt data resp gt lt CR gt Where lt gt brackets not sent Message from master 2AH DD ndicators address 00 Master address fixed at 00 CR Message terminator ODH Response from indicator 3A
6. H cmd Command to indicator cmd ech Command echoed from indicator data ent Data entered into indicator data resp Data response from indicator 12 OPTION 1 Analog Output 0 10 Vdc or 4 20 ma select with jumpers J1 and J2 Transformer 2 Line Filter a oe 13 Option 1 Analog Output SEL OP1 Use Zero to enter the menu and step to each category Gross Net to select parameters Print to return to menu selection DISPLAY Parameters Definition 1 4 Gr Gr Net DSP Analog tracks gross net or display 1 5 Zr 0 00 flashes current analog starting point Gross Net select digit 00000 0 digit flashes Tare increments digit 0000 5 Increments Gross Net select digit 0000 2 5 digit flashes Adjustment complete 000025 adjusted value Print to adjust starting point 1 5 Zr 0 25 flashes current analog starting point 1 6 FS 0 00 flashes current analog span point Gross Net select digit 00 0 000 digit flashes Tare increments digit 00 5 000 Increments Adjustment complete 005000 adjusted value Print to adjust span point 1 7 While monitoring the output use Unit to decrease Tare to increase the analog reading Zero trim digi pot 1 8 FSA While monitoring the output use Unit to decrease Tare to increase the analog reading Span Trim digi pot Print to exit OP1 14 OPTIONS 2 DIO AC
7. TIVITY 0 1 uV grad UPDATE RATE 30 update second DISPLAY Six 6 Decades 0 6 inch LED CONTROLS ZERO GROSS NET TARE UNITS PRINT POWER INPUT 117 217 VAC 50 60 HZ 20 watts fuse 0 25 A Slo Blow SERIAL PORTS Port 1 RS232C or 20ma Port 2 RS485 RS232C or 20mA ENCLOSURE Stainless Steel NEMA 4x Tilt Stand Base 7165 CASE 10 w x 6 5 h x 4 d OPTIONS TIME amp DATE 12 24 hr battery backed ANALOG OUTPUT 0 10v 4 20ma 16 bit D A DIO 4 AC DC inputs 4 AC outputs SS Relays 0 5 amp lacis uM 4 3 8 INSTALLATION POWER WIRING The indicator is designed to be operated from 117 217 VAC 50 60 Hz The unit power cord must be plugged into a grounded 3 wire polarized AC wall socket normal wiring and grounding precautions should be observed including use of a clean AC power line SCALE WIRING The unit is equipped with cable gland entry for load cell cable insertion and internal pluggable terminal strip for 4 6 wire connection Remove sense jumpers 11 8 7 P11 6 5 for six wire GROSS TARE UNITS PRINT NET SETUP ACCESS To access instrument configuration calibration or to enable options depress the Zero key for five seconds The Audit Trail counters and Cxxxx are displayed first followed by access code request The initial factory setting is 0000 which can be entered with four steps of t
8. d to print the total the Ent key returns to weigh mode The Clear key is used to clear the totalizer by first changing the message from Clr ACC no to Clr ACC yes with the Units key and Ent to complete A Cleared message is provided for conformation Note Totalizer works with port 1 only and the Print key is disabled when Batch Mode and Totalizer are both enabled Option 8 AC DC operation 8 1 Off On Enables battery charger 8 2 Off 5 15 30 90 120 Auto shutoff in minutes timer resets with motion 19 DISPLAY MESSAGES MESSAGE DAC IIC ERR RST ON AUTO ERR6 x 232 UPDATE LO BATT D BATT ULULUL OLOLOL Err 13 ADC Err CHECK rC xxxx Err 80 Err 81 CAL Err OFF RTC RST RST ID AC OK E 1234 Err 40 Err 31 Err 30 PC Err DESCRIPTION D A card detected Displayed under the check function IIC short Power up hardware failure indication EEPROM is reset by EER command Power up message Displayed on power up when the DC power push button is pressed EEPROM is reset Power up message Key pad key is stuck Serial calibration setup is active Enhancement calculation in progress Low battery Dead battery Under load 400 graduations under dead zero Over load 9 graduations or 105 from dead zero reference A D acquisition is in progress Instrument mode selection Number 999999 Number 99999 A D hardware failure channel one onl C
9. he Gross Net key AC0000 and Print If no entry is made instrument returns to operate mode The access code can be changed to any four digit combination during setup exit when display again shows AC Use the Tare key to increment a digit and Gross Net to shift the digit position The display check feature is accessed during the initial entry point AC by a second step of the Zero key The software version V 1 XX will be displayed followed by a continuous display test routine Another step on the zero key returns to AC Front panel access is inhibited if conventional sealing is applied by setting jumper J1 1 in the B position The board mounted CAL button is then used for access After entry use the Gross net key to select a main menu configuration SEL CFG calibration SEL CAL or options SEL OPX The Zero key enters selected menu and is used to step through sub categories Individual parameter selection is made with the Gross Net key which then steps through the parameter choices The Print key is used at any point to back up from categories to menus and to save and AC and exit During the exit steps if changes were made the display is save with alternate no To save changes use the Tare key to select yes and Print to exit Calibration numeric entries are made with Tare key incrementing the flashing digit and the Gross Net key s
10. heck mode accessed Lower four digits of the ROM check sum Serial command data error Unknown serial command Remote calibration Hardware failure of the D C power on off circuitry The clock is reset to 01 01 04 12 00 00am The ID EEPROM has been reset since it was detected as corrupt Access code entered has been accepted EEPROM set 1 2 3 and or 4 have been fixed Positive or negative signal overload check sense connections Bad tare entry Push to Zero out of range Piece Weight Entry is out of range 20 21 Spare Parts 7400 Part No 57819 57512 57820 57675 56734 56734 57811 TBD TBD Description Main Board Display Board Keypad Overlay Display Cable Load Cell T Strip Conn U Bkt U Bkt Knobs Enclosure Analog Output Setpoint AC input Setpoint DC input Second Channel 22
11. hifting the digit selection Menu Layout CONFIGURATION Use Zero to enter the menu and step to each category Gross Net to select parameters Print to return to menu selection Capacity is the combination of 1 2 and 3 Example 1 100 2 2and3 0 0 2 000x0 Ib Step Parameters Definition 1 5 10 15 20 100 120 1000 Number of divisions x100 100 lt 10 000 divisions Count by selection _ 4559 19 20 90 2nd 199 10 000 divisions count by 2 20 000 3 0 0 0 0 00 0 000 and 0 0000 Decimal point selection 4 105P 105 or 9 divisions Overrange selection 5 1 2 3 4 5 6 8 10 12 15 90 Digital filter selection averaging 6 off 0 5 1 3 5 10 divisions Auto Zero Maintenance AZM 7 1 9 5 10 20 FS of capacity 452 Selb acelin 71 off on ISM Zero s scale on power up 8 off 1 3 5 10 divisions Motion Band selection 9 Ib kg con Units selection and convert Port 1 serial output selection 10 nt Gtn n nt n Gtn nt display only Gtn is Gross Tare Net and n nt n Gtn inhibit neg gross print 11 off co de Off Continuous or Demand 12 TE 8n 7 odd 7 even or 8 none 13 12 24 48 96 Baud rate selection 14 off 1 2 3 5 10 15 seconds Sur A lines or continuous 19 A b adds STX in continuous b No STX in continuous 20 n
12. nt 1 pre act dribble both 2 3 Gr nt dSP Count Setpoint 1 tracks Gross Net Display Count 2 4 POS ZER Output on below reading POS inverted ZER 2 5 Off 1 2 3 10 Time Delay settling before print 2 6 Off s2 s2 p s2 d s2 p d Setpoint 2 pre act dribble both 2 7 Gr nt dSP Count Setpoint 2 pre act dribble both 2 8 POS ZER Output on below reading POS inverted ZER 2 9 Off 1 2 3 10 Time Delay settling before print 240 ZbO Zero band output input weight value available if 52 dribble not used 18 Time amp Date 3 1 24H 12A 12P Skip time 24 hour 12 hour am 12 hour pm 3 2 T1 Set time hh mm ss 3 3 dA Set date mm dd yy Month print selection short numerical 3 4 S no no Let mm dd yy number 01 thru 12 month spelled out 3 5 Off Un Ab On Print under above or on the same line OP5 10 Point Linearity On Off see page 8 OP6 Totalizer 6 1 Off On Enable Totalizer operates with Batch or Print 6 2 Off 1 50 Totalizer reset band Option 6 Totalizer Operates with print function in normal mode or batch mode In normal mode current value is added to the totalizer with each Print command The reset band is used to inhibit a double add when not in Batch Mode View the Total with the 2 key and during the display AC XXXX the Print key is use
13. r 1 3 2 3 Gr net 45 Outputs track Gross Net Display 2 4 POS ZER Invert low 2 5 POS ZER Invert accept 2 6 POS ZER Invert high 2 10 20 Zero band output input weight value 241 Off On Hysteresis provides 3 grads to prevent relay chatter 2 12 Off On Enables Bar graph legends HL Low 950 Then low is on until 950 then accept is on until example High 1050 1050 and high is on above 1050 tGt Target 1000 poutine Low 50 Outputs match above example for HL P High 50 17 Note Batch printouts are from Port 1 2 0 1 Manual Batch mode pauses between setpoints 7400 uses print tare or external DIO for start 24 Prn tAr din a second push wil abort 7600E uses Starl Stop panel switch 2 2 Off s1 s1 p s1 d s p d Setpoint 1 pre act dribble both 2 3 Gr nt dSP Count Setpoint 1 tracks Gross Net Display Count 2 4 POS ZER Output on below reading POS inverted ZER 2 6 Off s2 s2 p s2 d s2 p d Setpoint 2 pre act dribble both 2 7 Gr nt dSP Count Setpoint 2 pre act dribble both 2 8 POS ZER Output on below reading POS inverted ZER 240 ZbO S RUNE eR weight value available if 2 0 Bat 2 Auto Batch mode continues without pause 7400 uses print tare or external DIO for start 24 Pr tAr din panel switch 2 2 Off s1 s1 p s1 d s p d Setpoi
14. ration If an error has been made exit without storing will return to prior setup KEY FUNCTION DISPLAY Definition Live weight 123 Ib __123 Cal mode scale reading Zero acquire dead load 0 0 acquires new dead load live weight 5000 Ib 4995 Scale reading with load Gross Net adjust span 004995 freezes display for adjustment Gross Net select digit 00499 5 digit flashes Tare increments digit 00499 0 Increments Gross Net select digit 0049 9 0 digit flashes Adjustment complete 005000 adjusted value Then with Print adjust span to C 5000 displays new span Repeat as required then use Print to exit CAL Save No or Save Yes use Tare to select and Print to store yes with changes to exit without changes Continue with Print to Ent AC which allows access code change by entering a new four digit code and press again or skip with no entry Option 5 Ten point calibration Allows up to 10 span points pt1 pt10 Zeroing the scale clears the existing values Points are assigned incrementally with error indication if the addition is not above the prior point or exceeding scale capacity Filter selection included for rolling or box averaging 5 1 OFF On Enable 10 point span A Rolling average B Box average 5 2 SERIAL PORTS Port 1 RS232 duplex Rx Tx 20ma Tx Port 2 RS232 duplex
15. t Gtn n nt n Gtn Port 2 serial output selection 21 off co de Ln Off Continuous Demand Network 22 8n 7 odd 7 even or 8 none 23 12 24 48 96 Baud rate selection 24 off 1 2 3 5 10 15 seconds e lines or continuous 25 1 16 RS485 RS422 Network address selection 30 off on DIO Inputs Remote Serial Display RSD Option In RSD mode the instrument can be set to work with another unit as a remote either as the main or the slave unit Communication is pre set for channel two only on both units RS232 9600 8 none When in remote mode re access to the following selections requires using the internal cal Switch Remote unit can have full or partial control of the main unit Devices are available to replace the cable for wireless communication rd En Selects Indicator as Remote refs efe Indis to operate w RSD 41 Allow remote keypad operation 42 2 Enable Disable zero key 43 tr On Enable Disable tare key 44 Un On Enable Disable unit key 45 Pr On Enable Disable print key 46 Fn On Enable Disable all other functions CALIBRATION SEL CAL Use Zero to enter the menu indicated by a flashing C on the left and live weight is displayed Scale zero dead load or adjusting span single or multi point are independent Therefore either can be done and repeated as necessary before exiting calib
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