Milltronics CompuScale III Manuel utilisateur
COMPUSCALE III
Instruction Manual PL-367 January 2001
COMPUSCALE III
33453670
Rev. 1.4
INTEGRATOR
R2:RATE HI R1:SPEED LOMULT I SPAN NO : 1
-50% 0% 50% 100% 150%
TOTAL
1263957 T
© Siemens Milltronics Process Instruments Inc. 2001
Safety Guidelines
Warning notices must be observed to ensure personal safety as well as that of others, and to protect the product and the connected equipment.
These warning notices are accompanied by a clarification of the level of caution to be observed.
Qualified Personnel
This device/system may only be set up and operated in conjunction with this manual. Qualified personnel are only authorized to install and
operate this equipment in accordance with established safety practices and standards.
Warning:This product can only function properly and safely if it is correctly transported, stored, installed, set up, operated, and maintained.
Note: Always use product in accordance with specifications.
Copyright Siemens Milltronics Process
Instruments Inc. 2000. All Rights Reserved
Disclaimer of Liability
This document is available in bound version 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 Milltronics Process Instruments
Inc. will not be responsible for the contents of partial or
whole reproductions of either bound or electronic versions.
While we have verified the contents of this
manual for agreement with the instrumentation
described, variations remain possible. Thus we
cannot guarantee full agreement. The contents of
this manual are regularly reviewed and
corrections are included in subsequent editions.
We welcome all suggestions for improvement.
Technical data subject to change.
MILLTRONICS®is a registered trademark of Siemens Milltronics Process Instruments Inc.
Contact SMPI Technical Publications at the following address:
Technical Publications
Siemens Milltronics Process Instruments Inc.
1954 Technology Drive, P.O. Box 4225
Peterborough, Ontario, Canada, K9J 7B1
Email: techpubs@milltronics.com
For the library of SMPI instruction manuals, visit our Web site: www.milltronics.com
TABLE OF CONTENTS
TITLE PAGE #
General Information
About the CompuScale III 1 – 1
About this Manual
General 1 – 2
Conventions 1 – 3
Specifications CompuScale III 2 – 1
Options 2 – 2
Installation CompuScale III 3 – 1
Interconnection 3 – 1
Hazardous Locations 3 – 1
Start Up Hardware Set Up 4 – 1
Pre Start 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 5 – 3
Programming Sequence 5 – 3
Quick Start Guide 5 – 3
Calibration General 6 – 1
Initial Calibration References 6 – 1
Zero 6 – 1
Span 6 – 2
Calibration Accuracy 6 – 2
Calibration Alternatives 6 – 3
Auto Zero 6 – 3
Certification Mode 6 – 3
Alternate Test References 6 – 3
ECAL Calibrations 6 – 4
PL-367 i
Parameters General 7 – 1
Parameters 7 – 1
Programming Chart 8 – 1
Operation Initial Operation 9 – 1
Normal Operation
Start Up 9 – 1
Zero Calibration Check 9 – 2
Span Calibration Check 9 – 2
Reset Total 9 – 2
Run 9 – 2
Communication General 10 – 1
Host Communication 10 – 2
Remote Communication 10 – 2
Serial Printer Communication 10 – 2
Protocol 10 – 2
Data Field 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
Figures FIG. 1 Outline and Mounting 12 – 1
FIG. 2 Layout 12 – 2
FIG .3 CompuScale III / Belt Scale Interconnection 12 – 3
FIG. 4 CompuScale III / Belt Scale Interconnection (cont’d) 12 – 4
FIG. 5 CompuScale III / Speed Sensor Interconnection 12 – 5
FIG. 6 Power, Auto Zero, & Rate Output Wiring 12 – 6
FIG. 7 Relay Wiring 12 – 7
FIG. 8 Communication Wiring 12 – 8
■
PL-367 ii
GENERAL INFORMATION
ABOUT THE COMPUSCALE III
The Milltronics CompuScale III is a
microprocessor based integrator designed
specifically for bulk dry solids in-line
weighing applications.
The CompuScale III utilizes a load signal
(from a belt scale such as the Milltronics
MSI), and a speed input (from a speed
sensor such as the Milltronics MD-36, or a
programmed constant speed), to calculate
the material rate. This rate is integrated over
time to provide material totalization.
The CompuScale III provides:
» Load, Speed, Rate, and Total displays
» an analog mA output proportional to rate
» a relay contact for remote totalizer or PLC operation
» 2 alarm/control relays based on load, speed, or rate
» 2 ports for computer, remote terminal, PLC, or serial printer
The CompuScale III has three modes of operation; program, calibrate, and run.
The operator programs the CompuScale III via the keypad to provide displays and outputs in the desired units
of measure. The CompuScale III displays the name, range of acceptable values, (and additional
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 (test weight, test chain, or ECAL) is used to simulate the force of material applied to the belt
scale during the Span calibration. A material test is normally performed to verify the calibration accuracy. If
necessary, the material test results may be used to correct any deviation in calibration accuracy.
Calibration accuracy may be checked at any time. The results of this check are automatically compared to
system calibration and the deviation is displayed. The operator may choose to continue operation with the
previous calibration or the results of the calibration check.
All programming and calibration information is stored in non-volatile memory. If desired, the security
parameter may be set to ensure the CompuScale III programming and calibration is not inadvertently altered
in the run mode.
The run mode is the normal operating mode, providing dynamic measurement displays, analog mA output,
and a variety of other features.
R2:RATE HI R1:SPEED LOMULTI SPAN NO: 1
-50% 0% 50% 100% 150%
TOTAL
1263957 T
PL-367 1 – 1
ABOUT THIS MANUAL
GENERAL
This instruction manual contains information essential to successful CompuScale III operation.
SPECIFICATIONS, includes CompuScale III environmental, physical, and operational characteristics.
INSTALLATION, indicates the typical mounting and interconnection procedure.
START UP, prepares the CompuScale III for programming.
PROGRAMMING, details the activities required to tailor the CompuScale III to the particular application.
CALIBRATION, includes the CompuScale III input signal to output feature correlation procedure.
PARAMETERS, describes the function, factory setting, and range of possible settings, of
each parameter.
PROGRAMMING CHART, provides a space to record programmed parameter values for future reference.
OPERATION, describes initial and normal CompuScale III operation.
COMMUNICATION, provides CompuScale III serial communication information.
APPENDICES, Alphabetical Parameter List, Maintenance and Spare Parts, Error Messages,
Trouble Shooting.
FIGURES, includes a complete set of installation and interconnection drawings.
CONVENTIONS
Throughout this instruction manual the following symbols and presentation practices have been utilized:
[1234567ABCDEFG] alpha numeric characters enclosed within these brackets represents information
displayed by the CompuScale III display.
[T/h] units of measure were arbitrarily chosen from the imperial set. The actual units
displayed or otherwise applicable will be dependent upon operator programming.
indicates the following CompuScale III keypad button is to be pressed.
"RUN" or alpha numeric characters enclosed within quotation marks or this symbol represent
a key on the CompuScale III keypad.
Italics are used to identify the defined word(s) or phrase within a definition statement.
Information of a higher order of importance, is indented from
both left and right margins and in bold print.
ENTER
■
PL-367 1 – 2
SPECIFICATIONS
COMPUSCALE III
Power: » 100/115/200/230 V AC ±10%, jumper
selectable, 50/60 Hz, 65 VA
Fuses: » Main (FU1) » 3/4 Amp MDL SLO-BLO or equivalent
» Speed Sensor (FU2) » 1/4 Amp MDL SLO-BLO or equivalent
Operating » -20 to 50°C (-5 to 122°F)
Temperature:
Accuracy: » ±0.1% of span, typical
Resolution: » ±0.02% of span, typical
Inputs: » Load cell: » -20 to +45 mV DC per load cell
» 4 load cells max.
» LVDT: » 0 to 0.75 Vrms, 3 kHz
» Speed Sensor: » 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 request
Outputs: » Load cell: » 10 V DC, 250 mA max.
(excitation)
» LVDT: » 2.0 Vrms, 3 kHz, 50 mArms max.
(excitation)
» Speed Sensor: » 15 V DC, 150 mA max.
(excitation)
» Analog: » 4-20 mA (0-25 mA scaleable), isolated, proportional to rate
» 0.1% resolution
» 750 Ωmax. load
» Remote » SPST sealed relay
Totalizer:
» 1 form "A" contact rated 2A at 250V AC, 100 VA max.
» 25 msec. minimum contact closure duration
» 15 closures per second max.
PL-367 2 – 1
» Alarm: » 2 multipurpose relays for rate, load, or speed
» 1 Form "C" SPDT contact per relay, rated 5A at 230 V AC
» Communication: » 1 relay, 4PDT used for communication loop dropout,
» rated 1A at 230 V AC
» Display: » illuminated 256 x 128 dot matrix
Communication: » 2 serial ports
» RS232C and ±20 mA current loop
Enclosure: » NEMA4 style, steel construction with polycarbonate window
» 330 mm W x 406 mm H x 102 mm D
(13" W x 16" H x 4" D)
Shipping Weight: » 11.0 Kg (24.3 lbs), no options
OPTIONS
Cable: » Single load cell, 150m (500 ft) max. 20 AWG, 4 wire shielded,
Belden 8404 or equivalent
» Single load cell, 300m (1000 ft) max. 20 AWG, 6 wire shielded,
Belden 8426 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. 20 AWG, 4 wire shielded,
Belden 8404 or equivalent
» Speed Sensor, 300 m (1000 ft) max. 18 AWG, 3 wire shielded,
Belden 8770 or equivalent
Speed Sensor: » Milltronics MD36 or MD2000A for speed input
LCPA-08 » For connection to MMI-3 or MMI-4 scale configurations
interface:
Incline Compensator: » For variable incline conveyors
Barrier Strips: » For hazardous location belt scales
Enclosure Heater: » Recommended for operating temperatures below -10°C (14°F),
or excessive humidity.
Relay: » Food Grade remote totalizer relay
CVCC: » For bipolar current/RS-232C interface
BIC-II: » For 6 port bipolar current loop/RS-232C or RS-422 interface. ■
PL-367 2 – 2
INSTALLATION
COMPUSCALE III
The CompuScale III should be mounted in an area that is within the specified temperature range, and that is
suitable for Nema 4 style enclosures. The front cover should be accessible for keypad operation, display
viewing, and have sufficient room to swing open.
It is advisable to keep the CompuScale III away from high voltage or current runs, contactors, SCR control
drives and RF interference.
For proper totalizer relay operation, the CompuScale III must be mounted within 30° from vertical.
Refer to FIGURES.
Do not mount the CompuScale III in direct sunlight without the use of a sun shield.
INTERCONNECTION
Remove the enclosure bottom plate prior to drilling or punching cable/conduit entrance(s), to ensure metal
filings do not come in contact with the CompuScale 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 to Figures.
The power ground (TB1-50) is internally connected to SHLD connections (TB1-13,26 and TB2-5), and to the
mother board bottom mounting lugs. COM connections (TB1-15,29,32,36,37, and TB2-8) are connected to
power ground via jumper J2, (below TB1, between the mounting lugs). If the COM connections must be
isolated from power ground, remove J2.
Refer to FIGURES.
All wiring must be performed in accordance with all governing regulations.
HAZARDOUS LOCATIONS
The CompuScale III cannot be mounted in an area classed as hazardous. Where the associated belt scale is
mounted in a hazardous area, barrier strips must be used to isolate the CompuScale III from the hazardous
area for intrinsic safety. Contact Milltronics or your local representative for hazardous application information.
■
PL-367 3 – 1
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