Siemens Milltronics BW500 User manual

Instruction Manual May 2008
BW500
milltronics

© Siemens Milltronics Process Instruments Inc. 2008
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.
Unit Repair and Excluded Liability:
•The user is responsible for all changes and repairs made to the device by the user or the user’s
agent.
•All new components are to be provided by Siemens Milltronics Process Instruments Inc.
•Restrict repair to faulty components only.
•Do not reuse faulty components.
Warning: This product can only function properly and safely if it is correctly transported, stored,
installed, set up, operated, and maintained.
This product is intended for use in industrial areas. Operation of this equipment in a residential area
may cause interference to several frequency based communications.
Note: Always use product in accordance with specifications.
Copyright Siemens Milltronics Process
Instruments Inc. 2008. 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 European Authorized Representative
at the following address:
Technical Publications Siemens AG
Siemens Milltronics Process Instruments Inc. Industry Sector
1954 Technology Drive, P.O. Box 4225 76181 Karlsruhe
Peterborough, Ontario, Canada, K9J 7B1 Deutschland
Email: [e-mail]
•For a selection of Siemens Milltronics level measurement manuals, go to:
www. siemens.com/processautomation. Under Process Instrumentation, select
Level
Measurement
and then go to the manual archive listed under the product family.
•For a selection of Siemens Milltronics weighing manuals, go to:
www. siemens.com/processautomation. Under Weighing Technology, select
Continuous
Weighing Systems
and then go to the manual archive listed under the product family.

i
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Table of Contents
Table of Contents
Milltronics BW500 ..............................................................................................................1
Milltronics BW500 features ........................................................................................................1
Safety Notes .............................................................................................................................................2
The Manual ...............................................................................................................................................2
Specifications ......................................................................................................................3
Installation ...........................................................................................................................6
Dimensions ...............................................................................................................................................6
Layout ........................................................................................................................................................7
Optional Plug-ins .....................................................................................................................................8
SmartLinx® Module .....................................................................................................................8
mA I/O board ...................................................................................................................................8
Interconnection .....................................................................................................................................10
System Diagram .........................................................................................................................10
Scale – One Load Cell ................................................................................................................11
Scale – Two Load Cell ................................................................................................................12
Scale – Four Load Cell ...............................................................................................................13
Scale – LVDT .................................................................................................................................14
Speed .......................................................................................................................................................15
Constant Speed (No Sensor) ....................................................................................................15
Main Speed Sensor ....................................................................................................................15
Auxiliary Speed Sensor .............................................................................................................16
Auxiliary Inputs .....................................................................................................................................17
Auto Zero .................................................................................................................................................17
RS-232 Port 1 ..........................................................................................................................................17
Printers ...........................................................................................................................................17
Computers and Modems ...........................................................................................................18
Remote Totalizer ....................................................................................................................................18
mA Output 1 ............................................................................................................................................18
Relay Output ...........................................................................................................................................19
RS-485 Port 2 ..........................................................................................................................................19
Daisy Chain ...................................................................................................................................19
Terminal Device ............................................................................................................................19
RS-232 Port 3 ..........................................................................................................................................20
Power Connections ..............................................................................................................................20
mA I/O Board ..........................................................................................................................................21
Installing/Replacing the Memory Back-up Battery ......................................................................21
Start Up ...............................................................................................................................22
Orientation ..............................................................................................................................................22
Display and Keypad ....................................................................................................................22
PROGRAM Mode ..................................................................................................................................23
PROGRAM Mode Display .........................................................................................................23
To enter the PROGRAM mode .................................................................................................23
RUN Mode ....................................................................................................................................25
Initial Start Up ........................................................................................................................................25
Power Up .......................................................................................................................................25

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Table of Contents
Programming ................................................................................................................................25
Load Cell Balancing ..............................................................................................................................28
Typical two load cell belt scale ................................................................................................29
Zero Calibration ...........................................................................................................................32
RUN Mode ....................................................................................................................................33
Recalibration .....................................................................................................................34
Belt Speed Compensation ..................................................................................................................34
Material Tests ........................................................................................................................................35
% Change ......................................................................................................................................35
Material Test .................................................................................................................................37
Design Changes .....................................................................................................................................37
Recalibration ...........................................................................................................................................38
Routine Zero .................................................................................................................................38
Initial Zero .....................................................................................................................................39
Direct Zero ....................................................................................................................................39
Auto Zero .......................................................................................................................................40
Routine Span ................................................................................................................................41
Initial Span ....................................................................................................................................42
Direct Span ...................................................................................................................................43
Multispan ......................................................................................................................................43
On-line Calibration ................................................................................................................................46
Factoring .................................................................................................................................................50
Linearization ...........................................................................................................................................51
Operation ............................................................................................................................54
Load Sensing ..........................................................................................................................................54
Speed Sensing .......................................................................................................................................54
Differential Speed Detection ..............................................................................................................54
Moisture Compensation ......................................................................................................................55
Incline Compensation ..........................................................................................................................55
Modes of Operation ..............................................................................................................................56
Damping ...................................................................................................................................................57
mA I/O (0/4-20 mA) ................................................................................................................................57
Output .............................................................................................................................................57
Input ................................................................................................................................................57
Relay Output ...........................................................................................................................................58
Totalization ..............................................................................................................................................59
PID Control .........................................................................................................................61
Hardware .................................................................................................................................................61
Connections ............................................................................................................................................61
Setpoint Controller – Rate Control ..........................................................................................62
Setpoint Controller – Load Control ..........................................................................................62
Setpoint Controller – Master/Slave Control .........................................................................63
Setpoint Controller – Rate and Load Control .......................................................................64
Setup and Tuning ...................................................................................................................................64
Proportional Control (Gain), P ..................................................................................................64
Integral Control (Automatic Reset), I ......................................................................................65
Derivative Control (Pre-Act or Rate), D ..................................................................................66
Feed Forward Control, F ............................................................................................................66
PID Setup and Tuning ...........................................................................................................................67

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Table of Contents
Initial Start-Up ..............................................................................................................................67
Programming ..........................................................................................................................................70
Batching ..............................................................................................................................73
Connections ............................................................................................................................................73
Typical Ladder Logic ...................................................................................................................73
Programming ..........................................................................................................................................74
Operation .................................................................................................................................................75
Pre-act Function ..........................................................................................................................75
Communications ...............................................................................................................76
BW500 and SmartLinx® .....................................................................................................................77
Connection ..............................................................................................................................................77
Wiring Guidelines ........................................................................................................................77
Configuring Communication Ports ....................................................................................................78
P770 Serial protocols ..................................................................................................................78
P771 Protocol address ................................................................................................................79
P772 Baud Rate ............................................................................................................................79
P773 Parity .....................................................................................................................................79
P774 Data bits ...............................................................................................................................80
P775 Stop bits ...............................................................................................................................80
P778 Modem attached ...............................................................................................................80
P779 Modem idle time ...............................................................................................................81
P780 RS-232 Transmission interval .........................................................................................81
P781 Data message ....................................................................................................................82
P799 Communications Control .................................................................................................82
Dolphin Protocol ....................................................................................................................................83
Dolphin Plus Screen Shot ..........................................................................................................83
Modbus RTU/ASCII Protocol ..............................................................................................................84
How Modbus Works ...................................................................................................................84
Modbus RTU vs. ASCII ...............................................................................................................85
Modbus Format ............................................................................................................................85
Modbus Register Map ...............................................................................................................85
Modbus Register Map (cont’d) ................................................................................................88
Modems .........................................................................................................................................98
Error Handling ........................................................................................................................... 100
Parameters ....................................................................................................................... 102
Start Up (P001 to P017) ..................................................................................................................... 102
Relay/Alarm Function (P100 - P117) ............................................................................................... 106
mA I/O Parameters (P200 - P220) ....................................................................................................110
Calibration Parameters (P295 – 360) ...............................................................................................114
On-line Calibration Options (P355 to P358) ...................................................................................115
Linearization Parameters (P390 - P392) .........................................................................................117
Proportional Integral Derivative (PID) Control Parameters (P400 – P419) ............................119
Batch Control (P560 – P568) ..............................................................................................................122
Totalization (P619 - P648) ...................................................................................................................123
ECal Parameters (P693 – P698) ........................................................................................................127
Communication (P750 - P799) ...........................................................................................................129
SmartLinx Hardware Testing ............................................................................................................129
Test and Diagnostic (P900 - P951) ...................................................................................................130

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Table of Contents
Troubleshooting ............................................................................................................... 133
Generally ......................................................................................................................................133
Specifically ..................................................................................................................................133
Certification ..................................................................................................................... 136
Certification Printing .................................................................................................................136
Glossary ............................................................................................................................ 137
Appendix I ........................................................................................................................ 140
Memory Backup ..................................................................................................................................140
Software Updates ...............................................................................................................................140
Calibration Criteria ..............................................................................................................................140
Zero ...............................................................................................................................................140
Span ..............................................................................................................................................140
PID Systems ................................................................................................................................140
Appendix II: Software Revision History ..................................................................... 141
Index .................................................................................................................................. 144

7ML19985DK03 Milltronics BW500 – INSTRUCTION MANUAL Page 1
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Introduction
Milltronics BW500
The Milltronics BW500 is a full-featured integrator for use with belt scales and weigh
feeders. The speed and load signals from the conveyor and scale, respectively, are
processed to derive rate of material flow, and totalization. The primary values of speed
and load, and the derived values of rate and total are available for display on the local
LCD, or as output in the form of analog mA, alarm relay and remote totalization.
BW500 supports Siemens Milltronics Dolphin Plus software and Modbus protocol on the
two RS-232 ports and the RS-485 port for communication to customer PLC or computer.
BW500 also supports Siemens SmartLinx®for communication with popular industrial
communication systems.
Milltronics BW500 features
Reliable and robust user interface
• multi-field LCD display
• local keypad
Instrumentation I/O
• two remote totalizer contacts
• five programmable relays
• five programmable discrete inputs
• two programmable isolated mA input, for PID* control
• three programmable isolated mA output for rate, load, speed or PID* control
Popular Windows®and Industrial communications
• two RS-232 ports
• one RS-485 port
Individual port configuration for:
•Dolphin
•ModbusASCII
•ModbusRTU
•Printer
• SmartLinx®compatible
Note:
• The Milltronics BW500 is to be used only in the manner outlined in this instruction
manual.
• This product is intended for use in industrial areas. Operation of this equipment in
a residential area may cause interference to several frequency based
communications.

Page 2 Milltronics BW500 – INSTRUCTION MANUAL 7ML19985DK03
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Introduction
Controls and operation functions
• load linearization
• auto zero
• PID control*
• batch control
• multispan operation
• moisture compensation*
• incline compensation*
• differential speed detection
*PID control, Moisture and Incline Compensation requires the optional mA I/O board.
Safety Notes
Special attention must be paid to warnings and notes highlighted from the rest of the text
by grey boxes.
The Manual
It is essential that this manual be referred to for proper installation and operation of your
BW500 belt scale integrator. As BW500 must be connected to a belt scale, and optionally
a speed sensor, refer to their manuals as well.
The manual is designed to help you get the most out of your BW500, and it provides
information on the following:
If you have any questions, comments, or suggestions about the manual contents, please
email us at [email protected].
For the complete library of Siemens manuals,
go to www.siemens.com/processautomation.
WARNING means that failure to observe the necessary precautions
can result in death, serious injury, and/or considerable material
damage.
Note: means important information about the product or that part of the operating
manual.
• How to install the unit
• How to program the unit
• How to operate the keypad
and read the display
• How to do an initial Start Up
• How to optimize and
maintain accurate operation
of the unit
• Outline diagrams
• Wiring diagrams
• Parameter values
• Parameter uses
• MODBUS register mapping
• Modem configuration

7ML19985DK03 Milltronics BW500 - INSTRUCTION MANUAL Page 3
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Specifications
Specifications
Power
• 100/115/200/230 V AC ±15%, 50/60 Hz, 31 VA
• fuse, FU1 2AG, Slo Blo, 2 A, 250 V or equivalent
Application
• compatible with Siemens belt scales or equivalent 1, 2 or 4 load cell scales
• compatible with LVDT equipped scales, with use of optional interface board
Accuracy
• 0.1% of full scale
Resolution
• 0.02% of full scale
Environmental
• location: indoor / outdoor
• altitude: 2000 m max
• ambient temperature: -20 to 50 °C (-5 to 122 °F)
• relative humidity: suitable for outdoor (Type 4X / NEMA 4X /IP 65
enclosure)
• Installation category: II
• pollution degree: 4
Enclosure
• Type 4X / NEMA 4X / IP 65
• 285 mm W x 209 mm H x 92 mm D (11.2” W x 8.2” H x 3.6” D)
• polycarbonate
Programming
• via local keypad and/or Dolphin Plus interface
Display
• illuminated 5 x 7 dot matrix liquid crystal display with 2 lines of 40 characters each
Memory
• program stored in non-volatile FLASH ROM, upgradable via Dolphin Plus interface
• parameters stored in battery backed RAM, battery P/N PBD-2020035 or use equivalent
3V Lithium battery, 5 year life

Page 4 Milltronics BW500 - INSTRUCTION MANUAL 7ML19985DK03
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Specifications
Inputs
• load cell: 0 - 45 m V DC per load cell
• speed sensor: pulse train 0 V low, 5-15 V high, 1 to 3000 Hz,
or
open collector switch,
or
relay dry contact
• auto zero: dry contact from external device
• mA see optional mA I/O board
• auxiliary: 5 discrete inputs for external contacts, each
programmable for either display scrolling, totalizer 1
reset, zero, span, multispan, print, batch reset, or PID
function.
Outputs
• mA: - 1 programmable 0/4 - 20 mA, for rate, load and speed
output
- optically isolated
- 0.1% of 20 mA resolution
-750Ωload max
- see optional mA I/O board
• load cell: 10 V DC compensated excitation for strain gauge type, 4
cells max, 150 mA max
• speed sensor: 12 V DC, 150 mA max excitation for each speed sensor
• remote totalizer 1: - contact closure 10 - 300 ms duration
- open collector switch rated 30 V DC, 100 mA max
• remote totalizer 2: - contact closure 10 - 300 ms duration
- open collector switch rated 240 V AC/DC, 100 mA max
• relay output: 5 alarm/control relays, 1 form 'A' SPST relay contact per
relay, rated 5 A at 250 V AC, non-inductive
Communications
•twoRS-232ports
• one RS-485 port
• SmartLinx®compatible (see
Options below)
Cable
• one load cell:
non-sensing: Belden 8404, 4 wire shielded, 20 AWG or equivalent,
150 m (500 ft.) max
sensing: Belden 9260, 6 wire shielded, 20 AWG or equivalent,
300 m (1000 ft.) max
• two / four* load cells:
non-sensing: Belden 9260, 6 wire shielded, 20 AWG or equivalent,
150 m (500 ft.) max

7ML19985DK03 Milltronics BW500 - INSTRUCTION MANUAL Page 5
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Specifications
sensing: Belden 8418, 8 wire shielded, 20 AWG or equivalent,
300 m (1000 ft.) max
*for four load cell scale, run two separate cables of two load cell configuration
• speed sensor: Belden 8770, 3 wire shielded, 18 AWG or equivalent, 300m
(1000 ft.)
• auto zero: Belden 8760, 1 pair, twisted/shielded, 18 AWG, 300 m
(1000 ft.) max
• remote total: Belden 8760, 1 pair, twisted/shielded, 18 AWG, 300 m
(1000 ft.) max
Options
• Speed Sensor: Siemens MD-36 / 36A / 256 or 2000A, or RBSS, or
compatible
• Dolphin Plus: Siemens Windows®based software interface (refer to
associated product documentation)
• SmartLinx®Modules: protocol specific modules for interface with popular
industrial communications systems (refer to associated
product documentation)
• Siemens Milltronics Incline Compensator:
- for load cell excitation compensation on variable incline
conveyors
•mAI/Oboard:
inputs: - 2 programmable 0/4 – 20 mA for PID, control
- optically isolated
- 0.1% of 20 mA resolution
-200Ωinput impedance
outputs: - 2 programmable 0/4 – 20 mA for PID control, rate, load
and speed output
- optically isolated
- 0.1% of 20 mA resolution
-750Ωload max
• output supply: isolated 24 V DC at 50 mA, short circuit protected
• LVDT interface card: for interface with LVDT based scales
Weight
• 2.6 kg (5.7 lb.)
Approvals
•CE*,CSANRTL/C
• Legal for Canadian Trade - Measurement Canada approved
• Legal for US Trade - NTEP approved
*EMC performance available upon request

Page 6 Milltronics BW500 - INSTRUCTION MANUAL 7ML19985DK03
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Installation
Installation
Dimensions
Notes:
• Installation shall only be performed by qualified personnel and in
accordance with local governing regulations.
• This product is susceptible to electrostatic shock. Follow proper grounding
procedures.
Note: Non metallic enclosure does not provide grounding between connections.
Use grounding type bushings and jumpers.
1
5
9
2
6
0
3
7
4
8
M
A
RUN
ALT
DISP
PAR
RESET
TOTAL
ZERO
CLEAR
SPAN
ENTER
209
mm
(8.2")
172 mm
(6.8’)
lid screws
(6 pieces)
92 mm
(3.6")
16 mm
(0.6")
285 mm
(11.2")
lid
enclosure
customer
mounting screw
mounting hole
(4 places)
Conduit entry area.
Recommend drilling the enclosure with
a hole saw and the use of suitable cable
glands to maintain ingress rating.
267 mm
(10.5")

7ML19985DK03 Milltronics BW500 - INSTRUCTION MANUAL Page 7
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Installation
Layout
*To reduce communication interference, route SmartLinx®cable along right side of
enclosure wall.
WARNING:
• All field wiring must have insulation suitable for at least 250 V.
• dc terminals shall be supplied from SELV source in accordance with IEC
10101-1 Annex H.
• Relay contact terminals are for use with equipment having no accessible
live parts and wiring having insulation suitable for at least 250 V.
• The maximum allowable working voltage between adjacent relay contact
shall be 250 V.
1
2
3
4
5
6
7
8
9
10
LOAD CELL INPUTS
+
LCA
LCB
SHLD
LCCLCD
SHLD
-
+
-
-+
+
-
11
12
13
14
15
16
17
18
19
20
V+
S+
S-
V-
SHLD
SIG
COM
CNST
+EXC
SHLD
SPEED SENSOR
EXCI TATION
LOAD CELL
100
V
115V
200V
230V
OFF
VOLT SELECT
50/60HZ
SW2
MILLTRONICS
VENTURE ANALOG I /O
PN _____ ___-__
MADE IN CANAD A PET ERB OROUGH ONT
KA
21
22
23
24
25
26
27
28
29
30
MA+
MA-
SHLD
AUX1
AUX2
AUX3
AUX4
AUX5
COM
A-Z
31
32
33
34
35
36
37
38
39
40
TX
COM
RX
SHLD
T1+
T1-
SHLD
T2+
T2-
SHLD
RS-232
51
52
53
54
55
56
57
58
59
60
L1
RLY3
RLY4
RLY5
SHLD
L2/N
41
42
43
44
45
46
47
48
49
50
-
+
COM
-
+
SHLD
RLY1
RLY2
RS485
optional
Analog I/O
board
certification
switch
battery,
memory
back up
optional SmartLinx
®
module port 3 (RJ-11)
power
switch
fuse
FU1

Page 8 Milltronics BW500 - INSTRUCTION MANUAL 7ML19985DK03
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Installation
Optional Plug-ins
SmartLinx®Module
The BW500 is software/hardware ready to accept the optional Siemens
SmartLinx®communications module that provides an interface to one of several popular
industrial communications systems.
Your BW500 may be shipped to you without a SmartLinx®module, for installation at a
later date.
If you are ready to install your SmartLinx®module, or want to change it, please follow the
instructions as outlined.
Installation
1. Isolate power and voltages applied to the BW500.
2. Open the lid.
3. Install the module by mating the connectors and secure in place using the two
screws provided.
4. Route communication cable to SmartLinx®module along the right side of the
enclosure wall. This route will reduce communication.
5. Close the lid.
6. Apply power and voltage to the BW500.
Refer to:
• SmartLinx®Module in the Specifications section on page 3,
•
P750 – P769 SmartLinx
®Module Specific Parameters
on page 129 in this
manual,
• the SmartLinx®manual for wiring.
mA I/O board
The BW500 is software/hardware ready to accept the optional mA I/O board. The mA I/O
board provides 2 programmable 0/4-20 mA outputs, 2 programmable 0/4-20 mA inputs and
a nominal 24V DC supply for loop powered devices.
Your BW500 may be shipped to you without an mA I/O board, for installation at a later
date.
If you are ready to install your mA I/O board, please follow the instructions as outlined.
Note: Refer to the SmartLinx® module documentation for any required hardware
settings prior to closing the lid.

7ML19985DK03 Milltronics BW500 - INSTRUCTION MANUAL Page 9
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Installation
Installation
1. Isolate power and voltages applies to the BW500.
2. Open the lid.
3. Install the board by mating the connectors and secure the card in place using
the 3 screws provided.
4. Close the lid.
5. Apply power and voltage to the BW500.
Refer to:
• Specifications on page 3
• mA I/O board on page 21
•
mA I/O Parameters (P200 - P220) on page 110
•
mA I/O (0/4-20 mA) in the Operation section on page 57
mA I/O board
SmartLinx®
route SmartLinx®cable
along right hand wall

Page 10 Milltronics BW500 - INSTRUCTION MANUAL 7ML19985DK03
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Installation
Interconnection
System Diagram
Note: Wiring may be run via common conduit. However these may not be run in the
same conduit as high voltage contact or power wiring. Ground shield at one point
only. Insulate at junctions to prevent inadvertent grounding.
Note: Typical system capability. Not all components or their maximum quantity may
be required.
Milltronics
BW500
optional SmartLinx®
optional analog I/O
belt scale, see
Specifications
speed sensor,
optional, see
Specifications
mA output to
customer device
mA input from
customer device
relay output, to
customer device
auxiliary inputs
customer remote
totalizer
optional fieldbus
connection
mA output to
customer device
communication
ports can be
configured for
Siemens
Milltronics
Dolphin, print
data, or Modbus
ASCII or RTU
protocol

7ML19985DK03 Milltronics BW500 - INSTRUCTION MANUAL Page 11
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Installation
Scale – One Load Cell
*Where separation between the BW500 and belt scale exceeds 150 m (500 ft.), or legal
for trade certification:
1. remove the jumpers from BW500 terminal 11/12 and 13/14
2. run additional conductors from:
BW500 terminal 12 to scale `red'
BW500 terminal 13 to scale `blk'
If the load cell wiring colours vary from those shown, or if extra wires are provided,
consult Siemens.
Siemens
Belt Scale
load cell
customer
junction box
R
E
D
B
L
K
G
R
N
W
H
T
S
H
L
D
*
Note: Colour code for load cells used on
Siemens weighfeeders may be different
than shown. Please refer to the
weighfeeder wiring diagram.

Page 12 Milltronics BW500 - INSTRUCTION MANUAL 7ML19985DK03
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Installation
Scale – Two Load Cell
Where separation between the BW500 and belt scale exceeds 150 m (500 ft.), or legal for
trade certification:
1. remove the jumpers from BW500 terminal 11/12 and 13/14
2. run additional conductors from:
BW500 terminal 12 to scale `red'
BW500 terminal 13 to scale `blk'
If the load cell wiring colours vary from those shown, or if extra wires are provided,
consult Siemens.
load cell
A
load cell
B
customer
junction box
Siemens
Belt Scale
R
E
D
B
L
K
G
R
N
W
H
T
S
H
L
D
W
H
T
G
R
N
Note: Colour code for load cells used on
Siemens weighfeeders may be different
than shown. Please refer to the
weighfeeder wiring diagram.

7ML19985DK03 Milltronics BW500 - INSTRUCTION MANUAL Page 13
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Installation
Scale – Four Load Cell
Where separation between the BW500 and belt scale exceeds 150 m (500 ft.), or legal for
trade certification:
1. remove the jumpers from BW500 terminal 11/12 and 13/14
2. run additional conductors from:
BW500 terminal 12 to scale `red'
BW500 terminal 13 to scale `blk'
If the load cell wiring colours vary from those shown, or if extra wires are provided,
consult Siemens.
load cell
A
load cell
B
load cell
C
load cell
D
Siemens
Belt Scale
customer
junction box
integrator
R
E
D
G
R
N
W
H
T
S
H
L
D
W
H
T
G
R
N
B
L
K
W
H
T
R
E
D
G
R
N
S
H
L
D
W
H
T
G
R
N
B
L
K
W
H
T

Page 14 Milltronics BW500 - INSTRUCTION MANUAL 7ML19985DK03
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Installation
Scale – LVDT
Where separation between the BW500 and LVDT conditioner exceeds 150 m (500 ft.):
1. remove the jumpers from BW500 terminal 11/12 and 13/14
2. run additional conductors from:
BW500 terminal 12 to integrator terminal block ‘+EXC’
BW500 terminal 13 to integrator terminal block ‘-EXC’
For further connection information on specific LVDT’s consult Siemens.
belt scale with
LVDT
Siemens Milltronics LVDT Conditioner
maximum cable run LVDT to Conditioner 300 m (1000 ft.)
Siemens Milltronics
BW500