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TROUBLE SHOOTING

Every CompuScale III integrator is subjected to extensive quality assurance procedures to ensure the highest
possible degree of quality, reliability, and performance is achieved.

The following listing indicates the probable cause, and proper course of action to be taken should the
specified fault symptom occur.

SYMPTOM

CAUSE

ACTION

Display blank

» Loss of power

» check power wiring, jumpers, and fuses

» check POWER switch is ON

» check AC supply

» check display board HD2 - 1,4

Will not complete a Zero or

» Loss of input signal(s)

» check P80 - 84 (load)

Span calibration

» check P19 (speed)

» check load sensor wiring

» check speed sensor wiring or constant

speed jumper

» Wrong Design Parameter

» check programming value(s)

Calibration takes too long

» Calibration Duration too long

» reduce P30 value

Zero calibration deviation drifts

» Loose mechanical assembly

» tighten all bolts and clamps

» Material build up on belt

» run belt empty as long as practical

before Zero

Span calibration deviation drifts » Loose mechanical assembly

» tighten all bolts and clamps

Accuracy is not within

» Test Reference doesn’t represent » perform Zero and Span calibration,

desired limits

true operating conditions

followed by a Span Adjust (P8)

» Calibration Duration too low

» increase P30 value *

» Belt Length (P6) incorrect

» enter correct Belt Length (P6)*

» Belt Speed (P4) incorrect

» perform Speed Adjust (P19)

» Load cell signals not

» perform load cell signal

balanced

balance (P90 - P95)*

» Conveyor incline varies

» Install a Milltronics Incline Compensator*

* Perform a new Zero and Span calibration, and a Span Adjust (P8) after the recommended action.

For more trouble shooting information, refer to the belt scale and application guideline instruction manuals.

■

Pl-367

11 – 4

Содержание CompuScale III

Страница 1: ...COMPUSCALE III Instruction Manual PL 367 January 2001 OMPUSCALE II 33453670 Rev 1 4 INTEGRATOR R2 RATE HI R1 SPEED LO MULTI SPAN NO 1 50 0 50 100 150 TOTAL 1263957 T...

Страница 2: ...n and in electronic version We encourage users to purchase authorized bound manuals or to view electronic versions as designed and authored by Siemens Milltronics Process Instruments Inc Siemens Millt...

Страница 3: ...tart Up Checks 4 3 Initial Start Up 4 3 Programming General 5 1 Keypad 5 1 Parameter Entry 5 2 Direct Parameter Access 5 2 Automatic Parameter Access 5 2 Altering Parameter Values 5 3 Parameter Reset...

Страница 4: ...ield Descriptions 10 3 Message Requests 10 3 Message Responses 10 4 Appendices Alphabetical Parameter Listing Maintenance and Spare Parts Maintenance Spare Parts Error Messages Trouble Shooting Figure...

Страница 5: ...itional information instruction of the parameter programming feature accessed In the calibrate mode the system Zero empty belt and Span 100 material rate calibration is established A test reference te...

Страница 6: ...II serial communication information APPENDICES Alphabetical Parameter List Maintenance and Spare Parts Error Messages Trouble Shooting FIGURES includes a complete set of installation and interconnecti...

Страница 7: ...sor 5 15 V DC pulses 2 Hz to 10 kHz Multispan 4 contact inputs for up to 8 spans Auto Zero contact input for enable Keypad 20 key sealed membrane with tactile feedback Printer contact input for print...

Страница 8: ...or equivalent Dual load cell 150 m 500 ft max 20 AWG 6 wire shielded Belden 8426 or equivalent Dual load cell 300 m 1000 ft max 20 AWG 8 wire shielded Belden 8418 or equivalent LVDT 150 m 500 ft max...

Страница 9: ...cale III electronics Load cell or LVDT speed sensor rate output communication and low voltage contact wiring may be run in a common conduit separated from power and high voltage contact wiring Refer t...

Страница 10: ......

Страница 11: ...formed To alter the Units of Measure of a programmed CompuScale III set SW1 5 as desired then perform a Reset Refer to Parameters P99 Reset CERTIFICATION Leave SW1 contact 6 SW1 6 in the open position...

Страница 12: ...uScale III is used SW2 6 of the remote CompuScale III only must be closed PORT 2 COMMUNICATION MODE Leave SW2 contact 7 SW2 7 open for normal operation or closed if a serial printer is connected to Po...

Страница 13: ...d SW1 and SW2 have been set as required the POWER switch is in the OFF position Connect power to TB1 51 52 and ground to TB1 50 of the CompuScale III Ensure all connections are secure Do not operate t...

Страница 14: ...ode ECAL indicates ECAL simulated rate signal is on If ECAL is off the field is blank BELT REV full belt revolutions remaining before calibration completion calibrate mode CALIB calibrate mode indicat...

Страница 15: ...ed display any mode enter the program mode access parameter for entry or viewing any mode access zero calibration view current zero count any mode access span calibration view current span count any m...

Страница 16: ...he AUX 1 field To view the current parameter value and auxiliary messages for the displayed parameter PARAMETER 0 is displayed in the FEATURE field 1 is displayed in the VALUE field unless previously...

Страница 17: ...ate parameter values to the spaces provided on the PROGRAMMING CHART fold out b Perform a MASTER RESET P99 c Access each parameter in sequence from P0 and enter the parameter values from the PROGRAMMI...

Страница 18: ......

Страница 19: ...TIAL CALIBRATION REFERENCES The first calibration performed establishes the Initial Zero and Initial Span calibration references Subsequent Zero and Span calibration results are compared to these refe...

Страница 20: ...LIB displayed in the CALIB field apply the Test Weight to the belt scale as described in the belt scale manual If CALIB is not displayed respond to the CompuScale III display prompts until this indica...

Страница 21: ...CERTIFICATION LOCKOUT is displayed in the AUX 2 field To activate the Certified Mode close SW1 contact 6 SW1 6 after the CompuScale III is programmed and calibrated The maximum acceptable deviation be...

Страница 22: ...ted so ECAL will accurately simulate material flow during future Span calibrations For best results if the new P7E value is not between 50 to 100 of the Design Rate P1 value perform an ECAL Adjust Ref...

Страница 23: ...roduce the full scale Rate output F 0 0000 enter Design Rate from Design Data Sheet Range 0 0001 to 99999 P2 LOCAL TOTAL E Defines the amount of material to be totalized prior to initiating an interna...

Страница 24: ...ference m or ft Per Revolution see speed sensor nameplate or consult Milltronics P6 BELT LENGTH E Defines the length of the conveyor belt which passes over the belt scale Range 0 0001 to 99999 If SW1...

Страница 25: ...just not required F 1 manual enter current deviation in percent 2 automatic enter the material test results P9 FACTORING Adjusts the Test Reference value P7 of the Test Reference selected P20 After th...

Страница 26: ...es provide more stabilization Press Run to instantly update the Rate display to the current rate enter desired value F 1 P12 LOAD DISPLAY DAMPING Defines the level of damping to be applied to the Load...

Страница 27: ...before keying in the estimated reference value and pressing ENTER c Repeat step b as required to produce the desired minimum Rate Output Briefly press 4 increase by 10 s or 8 decrease by 1 s to fine a...

Страница 28: ...d A Zero and Span calibration is not required as a result of the use of this parameter enter the actual belt speed the adjusted parameter value is automatically displayed P20 TEST REFERENCE SELECTION...

Страница 29: ...otalizer values before and after adjusting ECAL To adjust ECAL a Enter the RUN mode before accessing P22 and selecting the adjust option b Press CLEAR before keying in the estimated reference value ra...

Страница 30: ...or more temporary or permanent closed contacts between the TB1 COM e g TB1 37 and the following TB1 terminals O contact open C contact closed For convenience the Multispan number selection may be prov...

Страница 31: ...weight portion of the Rate Unit P0 is assumed enter 0 same as the Local Total P2 value F 1 1 10 of the Local Total P2 value P40 BAUD RATE Defines the baud rate for PORT 1 data message communication T...

Страница 32: ...alue which will cause the relay to de energize If a low alarm is not required set the Low Limit to 0 The Deadband is the amount by which the High and Low Limit must be exceeded above the low limit bel...

Страница 33: ...Limit value Range 0 000 to 100 0 F 0 advances to Low Limit desired Low Limit value Range 0 000 to 100 0 F 0 advances to Deadband desired Deadband value Range 0 000 to 100 0 F 0 P55 100 TEST REFERENCE...

Страница 34: ...cured 3 parameter values Zero and Span calibrations secured 4 parameter and Total display values Zero and Span calibrations secured P70 CLOCK CALENDAR Defines the current Time and Date to be maintaine...

Страница 35: ...connected to TB1 5 6 in mV Range 0 00 to 50 00 Access to this parameter is gained when SENSOR TYPE P21 is set to 4 This feature is normally used to verify the integrity of the load cell after initial...

Страница 36: ...of the conveyor When the load cell balancing procedure is completed for all MSI s of an MMI application perform a Zero and Span calibration before entering the RUN mode enter 1 MSI 1 advance to P91 F...

Страница 37: ...ber selected For LCPA 08 applications leave the LCPA 08 SW3 load cell contacts in the P94 position Adjust the appropriate LCPA 08 balancing potentiometer until the P95 display value 0 5 Close all LCPA...

Страница 38: ......

Страница 39: ...BAUD RATE 300 1200 2400 9600 P41 DATA TRANSMIT INTERVAL 0 to 99999 F 30 P42 DATA MESSAGE 0 off 1 Rate 2 Total 3 Load 4 Speed 5 1 2 3 4 9 System P43 SERIAL PRINTER 0 off 1 on P51 RELAY 1 0 off 1 Rate 2...

Страница 40: ......

Страница 41: ...t speed Ensure the design Speed is maintained to display the current material rate Ensure the design Rate is not exceeded to display the current material total Observe the total value incrementing A p...

Страница 42: ...peed to initiate a Span calibration When complete time dependent on programming the deviation from the span calibration is displayed if the span deviation is acceptable If the span deviation is not ac...

Страница 43: ...be used to convert the Bipolar Current Loop to RS 232C The BIC II is also capable of Bipolar Current Loop to RS 422 conversion The CompuScale III RS 232 port may be connected directly to an RS 232C de...

Страница 44: ...ERIAL PRINTER COMMUNICATION Two modes of serial printer operation are available The Port 1 mode similar to previous Milltronics integrator versions printout is initiated each time a dry contact is pro...

Страница 45: ...racters 00 to 15 MT Identifies the message type transmitted ASCII characters 50 material flow rate 51 material load 52 belt speed 53 totalized material READING Contains the measurement value in the en...

Страница 46: ...request will be in the following format som DEVICE MT READING eom Example Data ASCII Example Field Character Description som STX start of message DEVICE 00 from CompuScale III 0 MT 50 material flow r...

Страница 47: ...S A A B P94 L C Balance POS A B P93 Load Cell Input A P81 Load Cell Input B P82 Load Cell Input C P83 Load Cell Input D P84 PARAMETER PARAMETER NAME NUMBER Multispan P26 Parameter List P100 Rate P1 Ra...

Страница 48: ...tor batteries should be replaced annually The 3 6 Volt lithium battery located on the mother board top right corner should only be replaced while the CompuScale III power is ON The 9 Volt calibrator b...

Страница 49: ...s to a function which is restricted by Security P66 Refer to Parameters P66 Security SPAN CALIB REQUIRED Attempted RUN mode operation prior to accepting an initial Span calibration Refer to Calibratio...

Страница 50: ...Duration too long reduce P30 value Zero calibration deviation drifts Loose mechanical assembly tighten all bolts and clamps Material build up on belt run belt empty as long as practical before Zero Sp...

Страница 51: ...178 mm 7 330 mm 13 101 mm 4 435 mm 17 1 406 mm 16 enclosure bottom plate for cable conduit entrance 11 mm dia 0 4 4 places OUTLINE and MOUNTING FIG 1 PL 367 12 1...

Страница 52: ...NGS BOOK FOR RELAY SEE INSTRUCTION SN PETERBOROUGH ONTARIO MADE IN CANADA COMPUSCALE COMPUFLO MILLTRONICS SELECT VOLTAGE 100VAC 115VAC 200VAC 50 60 HZ VA VAC OPERATION 100 115 200 230 POSITION J1 FOR...

Страница 53: ...ing instructions 2 Where the integrator to load cell belt scale cable exceeds 150m 500 ft A remove jumpers from Compuscale III TB1 9 10 and TB1 11 12 B run an additional shielded conductor to the junc...

Страница 54: ...ructions 2 Where the integrator to load cell belt scale cable exceeds 150m 500 ft A remove jumpers from Compuscale III TB1 9 10 and TB1 11 12 B run an additional shielded conductor to the junction box...

Страница 55: ...necting ther speed sensor 2 Connect Compuscale III TB1 31 to the speed sensor junction Position 2 for clockwise speed sensor shaft rotation Position 3 for counter clockwise speed sensor shaft rotation...

Страница 56: ...lied to TB1 51 52 2 The Auto Zero contact must be closed when the material feed is stopped if Auto Zero calibration is desired AUTO ZERO Voltage Select prefeed activated dry contact Power Connection 1...

Страница 57: ...rol devices Compuscale III TB1 48 49 R1 C1 R2 C2 POWER SOURCE CompuScale III TB1 AC Some totalizers have an internal power source Shaded area recommended for inductive load L R1 R2 20 to 30 W C1 01 to...

Страница 58: ...ommunication of the other CompuScale III s FIG 8 to device current loop connection CompuScale III CompuScale III to device current loop connection CompuScale III to device RS 232 port CompuScale III t...

Страница 59: ...c 1954Technology Drive P O Box 4225 Peterborough ON Canada K9J 7B1 Tel 705 745 2431 Fax 705 741 0466 www milltronics com Siemens Milltronics Process Instruments Inc 2001 Subject to change without prio...

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