Milltronics ACCUMASS BW500 User manual

ACCUMASS BW500
Instruction Manual PL-565 January 2001
ACCUMASS BW500
33455650
Rev. 1.2

© Siemens Milltronics Process Instruments Inc. 2001
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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.
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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.
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PL-565 Accumass BW500 Page 3
Table of Contents
About this….................................................................................................................7
About This Manual ...........................................................................................7
About the Accumass BW500 ...........................................................................8
Accumass BW500 features: ......................................................................8
Specifications..............................................................................................................9
Installation .................................................................................................................13
Dimensions ....................................................................................................13
Optional Plug-ins............................................................................................14
SmartLinx®Module ..................................................................................14
mA I/O board ...........................................................................................15
Layout ............................................................................................................16
Interconnection ..............................................................................................17
System Diagram......................................................................................17
Scale – One Load Cell ............................................................................18
Scale – Two Load Cell ............................................................................19
Scale – Four Load Cell............................................................................20
Scale – LVDT ..........................................................................................21
Speed.............................................................................................................22
Constant Speed (No Sensor) ..................................................................22
Speed Sensor..........................................................................................22
Auxiliary Inputs...............................................................................................23
Auto Zero .......................................................................................................23
RS-232 Port 1 ................................................................................................23
Printers ....................................................................................................23
Computers and Modems .........................................................................24
Remote Totalizer............................................................................................24
mA Output 1...................................................................................................24
Relay Output ..................................................................................................25
RS-485 Port 2 ................................................................................................25
Daisy Chain .............................................................................................25
Terminal Device ......................................................................................25
RS-232 Port 3 ................................................................................................26
Power Connections........................................................................................26
mA I/O Board .................................................................................................27
Installing/Replacing the Memory Back-up Battery.........................................27
Start Up ......................................................................................................................29
Orientation .....................................................................................................29
Display and Keypad ................................................................................29
Program Mode ...............................................................................................30
General....................................................................................................30
Run Mode ................................................................................................31
Initial Start Up ................................................................................................32
Power Up.................................................................................................32
Programming...........................................................................................32
Load Cell Balancing .......................................................................................35
Typical two load cell belt scale................................................................35
Zero Calibration.......................................................................................38
Span Calibration......................................................................................39
Run Mode ................................................................................................40

Page 4 Accumass BW500 PL-565
Recalibration .............................................................................................................41
Belt Speed Compensation .............................................................................41
Material Tests ................................................................................................42
% Change................................................................................................42
Material Test............................................................................................44
Design Changes ............................................................................................44
Recalibration ..................................................................................................45
Routine Zero............................................................................................45
Initial Zero................................................................................................46
Direct Zero...............................................................................................46
Auto Zero.................................................................................................47
Routine Span...........................................................................................47
Initial Span...............................................................................................49
Direct Span..............................................................................................50
Multispan .................................................................................................50
Factoring ........................................................................................................53
Linearization...................................................................................................54
Parameter Description..............................................................................................57
Start Up (P001 to P017) ................................................................................58
Relay/Alarm Function (P100 - P117) .............................................................62
mA I/O Parameters (P200 - P220).................................................................65
Calibration Parameters (P295 –360) ............................................................69
Linearization Parameters (P390 - P392) .......................................................72
Proportional Integral Derivative (PID) Control Parameters, (P400 –P418) .......73
Batch Control (P560 –P568).........................................................................76
Totalization (P619 - P648) .............................................................................78
ECal Parameters (P693 –P698) ...................................................................81
Communication (P750 - P792) ......................................................................84
P750 –P769 SmartLinx®Module Specific Parameters...........................84
P770 –P789 Local Port Parameters.......................................................84
Test and Diagnostic (P900 - P951)................................................................85
Operation ...................................................................................................................89
Load Sensing .................................................................................................89
Speed Sensing...............................................................................................89
Modes of Operation .......................................................................................89
Damping.........................................................................................................90
mA I/O (0/4-20 mA)........................................................................................91
Output......................................................................................................91
Input.........................................................................................................91
Relay Output ..................................................................................................91
Totalization.....................................................................................................92
PID Control ................................................................................................................95
Hardware .......................................................................................................95
Connections ...................................................................................................95
Setpoint Controller –Rate Control ..........................................................96
Setpoint Controller –Load Control..........................................................96
Setpoint Controller –Master/Slave Control.............................................97
Setpoint Controller –Rate and Load Control ..........................................98
Setup and Tuning...........................................................................................98
Proportional Control (Gain), P.................................................................98
Integral Control (Automatic Reset), I.......................................................99

PL-565 Accumass BW500 Page 5
Derivative Control (Pre-Act or Rate), D...................................................99
Feed Forward Control, F.......................................................................100
PID Setup and Tuning..................................................................................100
Initial Start-Up........................................................................................100
Programming ...............................................................................................103
Batching...................................................................................................................107
Connections .................................................................................................107
Typical Ladder Logic .............................................................................107
Programming ...............................................................................................108
Operation .....................................................................................................109
Pre-act Function ....................................................................................109
Certification .............................................................................................................111
Communications.....................................................................................................113
BW500 and SmartLinx®...............................................................................114
Connection...................................................................................................114
Wiring Guidelines ..................................................................................114
Configuring Communication Ports ...............................................................115
P770 serial protocols.............................................................................115
P771 protocol address ..........................................................................116
P772 Baud Rate ....................................................................................116
P773 Parity ............................................................................................116
P774 data bits .......................................................................................117
P775 stop bits........................................................................................117
P778 modem attached ..........................................................................117
P779 modem idle time...........................................................................117
P780 RS-232 transmission interval.......................................................118
P781 data message ..............................................................................118
Dolphin Protocol...........................................................................................120
Dolphin Plus Screen Shot .....................................................................120
Modbus RTU/ASCII Protocol .......................................................................121
How Modbus Works ..............................................................................121
Modbus RTU vs. ASCII .........................................................................122
Modbus Format .....................................................................................122
Modbus Register Map ...........................................................................123
Modbus Register Map (cont’d) ..............................................................125
Modems.................................................................................................133
Error Handling .......................................................................................135
Troubleshooting......................................................................................................137
Generally ...............................................................................................137
Specifically.............................................................................................137
Error Codes..................................................................................................138
Appendices..............................................................................................................139
Memory Backup ...........................................................................................139
Software Updates ........................................................................................139
Calibration Criteria .......................................................................................139
Zero: ......................................................................................................139
Span: .....................................................................................................139
PID Systems:.........................................................................................139