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Reference Guide WMH 42908713C

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Reference Guide WMH 42908713C
Reference Guide
METTLER TOLEDO
WMH Weighing Platforms
© Mettler-Toledo GmbH 2005
Doc.No. KA021, 42908713C
WMH Weighing Platforms
Reference Guide
Contents
1
1.1
1.2
1.3
1.4
2
2.1
2.2
3
3.1
3.2
Initial Setup.................................................................................................................. 4
Installation .................................................................................................................... 4
Electrical Connection ...................................................................................................... 5
Connecting to a PC ........................................................................................................ 6
Quick Configuration Guide............................................................................................... 7
Documentation Overview ............................................................................................... 8
File Structure of the CD-ROM............................................................................................ 8
Where to Find What........................................................................................................ 9
Technical Data............................................................................................................ 12
General Data ............................................................................................................... 12
Technical Specifications ................................................................................................ 13
3
Reference Guide
WMH Weighing Platforms
1 Initial Setup
1.1
Installation
Selecting the installation location
•
•
The foundation of the installation location must be capable of safely supporting the weight of the weighing platform at its support points when it
carries the maximum load. The foundation must also be so stable that no
vibrations occur during weighing operations. These requirements also
apply when the weighing platform is integrated in conveying systems and
the like.
Ensure that vibrations due to machines near the installation site are kept
to a minimum.
Setting up and leveling
•
•
•
•
•
•
Remove the weighing platform from the packaging.
Place the load plate on the weighing platform.
Level the weighing platform with the 4 leveling screws (1) using the level
indicator (2). The air bubble of the level indicator must come to rest
within the ring marking.
Ensure even contact of the leveling screws. Check the stability of the
weighing platform by pressing down on, or rocking it, at the corners.
Lock the leveling screws with the nuts.
Releasing the transportation lock for high-capacity platforms,
see CD-ROM > English > Documents > Documents_K-Line >
K-Line_installation_information_.....pdf.
Installing the connection cable
•
4
Connection cables up to 10 meters long are available as accessories.
Route the connection cable so that it is protected from possible damage.
WMH Weighing Platforms
1.2
Reference Guide
Electrical Connection
METTLER TOLEDO recommend connecting WMH weighing platforms by means of the METTLER TOLEDO ConModule or the
ConBox and the corresponding cables (available as accessories). The ConModule is mandatory if digital inputs or outputs are used.
If neither of the above connection modules are used, the power supply must fulfill the requirements of EN61204-3:2000
and must incorporate a fuse of 750 mA.
Pin assignments of the 19-pin plug, Binder type, series 423, viewed from the solder side of the female cable plug:
RS232
Pin
PIN A
PIN B
PIN C
PIN D
PIN E
PIN F
PIN G
PIN H
PIN J
PIN K
PIN L
PIN M
PIN N
PIN O
PIN P
PIN R
PIN S
PIN T
PIN U
RS422
Wire color
Code
Shielding
Shield
Grey-pink VSS (10..28VDC)
Purple
DGND
Black
Rx- (*Rx)
Red
DIN1
Blue
Factory
Pink
DOT 1
Grey
Factory
Yellow
DIN 0
Green
DIN 2
Brown
DOT 0
White
Tx+ (Tx)
Red-blue
TxD
White-pink
RxD
Grey-brown GND (to VSS)
White-grey
Tx- (*Tx)
Yellow-brown
CTS
White-yellow
RTS
Brown-green
DOT 2
White-green
Rx+ (Rx)
Interface
RS232
RS422
RS422
RS232
RS232
RS422
RS232
RS232
RS422
Remarks
Shield
Plus pole of supply voltage
Ground potential for RS-232
Receiving wires RS-422
Digital input 1
Leave wire open
Digital output 1
Leave wire open
Digital input 0
Digital input 2
Digital output 0
Transmission wires RS-422
Transmission wire RS-232
Receiving wire RS-232
Minus pole of supply voltage
Transmission wires RS-422
Data flow control RS-232
Data flow control RS-232
Digital output 2
Receiving wires RS-422
ConModule
Terminal No.
20
11
10
9
8
7
6
5
4
3
2
1
12
19
18
17
16
15
14
13
The wire color refers to the WM connection cables which are available as accessories.
5
Reference Guide
1.3
Connecting to a PC
•
•
•
•
•
•
•
•
•
•
•
•
•
6
WMH Weighing Platforms
Connect your weighing platform to the RS232 port of a PC according to section 1.2.
Connect the platform to a suitable power source.
To configure the WMH platform, it is advisable to use its RS232 interface. If the ConModule or the ConBox is part
of your configuration, use its Dsub9 service plug to connect it to a standard RS232 cable.
Install the Windows WM Term Disp Software (CD-ROM > English > Software > WM_Terminal_Display) on your
computer by double-clicking the Setup.exe file.
Start the WM Term Disp. program.
Click the Configure button to configure the COM port of your computer to the factory settings of the weighing platform: 9600 baud, 8 bits, no parity, 1 stop bit, no handshake. (Detailed information about the interface configuration parameters of your WMH weighing platform can be found in the enclosed Reference Manual (MT-SICS)
under the COM command.)
Activate the display by clicking the Display button.
If the connection has been correctly made, you will now see the actual weight value in the display of the WM
Term Disp program.
Click the buttons SI, S, T, Z to send the most frequently used commands to the weighing platform.
A detailed description of how to use the WM Term Disp program can be found in CD-ROM > English > Software
> WM_Terminal_Display > WM_term_disp_HELP.pdf.
To display a graph of the weight values against time on your PC, you can also use the WM Graph Disp. program. Please follow the instructions in the Read Me file of the CD-ROM > English > Software >
WM_Graphical_Display for installation. It is necessary to run both Setup.exe files.
Follow the instructions in the next section to configure your WMH weighing platform.
Please also browse through Section 2.2 which tells you how to find detailed information about selected topics
that will optimize the use of your weighing platform.
WMH Weighing Platforms
1.4
Reference Guide
Quick Configuration Guide
A number of adjustable parameters allow the WMH weighing platform to be configured to customer-specific needs. To
achieve optimum results for repeatability and speed, some parameters must be changed from the factory settings to a
configuration that best suits your individual application.
The list below shows the 10 most important parameters which need to be verified and adjusted and the respective commands which must be executed. Please refer to the respective command in the enclosed Reference Manual (MT-SICS)
and adjust the parameters to the appropriate values.
Please see also the CD-ROM > English > Documents > Engineering_Notes > EN051_nn_Process-SpecificConfiguration.pdf
for tips and examples about individual configuration of WMH weighing platforms.
#
Subject
Command
Remarks / Example
1
Configuration of the interface parameters
(RS232 and RS422)
COM
2
Adjustment (calibration) of the weighing
platform
C3, C2
3
Setting the weighing mode: weight control,
dispensing, user defined
M01
M01 0 Weight control (factory default setting)
M01 1 Dispensing
4
Setting of weight signal filter
M02
M02 0 Lowest attenuation – fast results
M02 2 Medium attenuation
M02 4 Highest attenuation, for very demanding
environmental conditions
5
Setting of stability criteria for weighing, taring, and zero setting
M30
The settings of "M30" affect the stabilization time as
well as the repeatability of the weight measurement.
Format: M309Funct9Tol9Time
Better repeatability is obtained by:
- decreasing Tol (number of digits);
- increasing time (seconds).
Example: M309091.090.2
6
Setting the readability
RDB
Smallest weight increment = 1 digit
7
Setting the update rate (output data rate)
UPD
Permissible values are 1 to 7, 9, 12, 19, and 38
updates per second. The default factory setting is 9.
Please note the correct setting of the baud rate >
COM
8
Setting the output format (control mode)
MOD
Allows the output format of WMH weighing platforms to be extended by an auxiliary numerical increment.
9
List all current user settings
LST
Lists all current settings that can be changed by the
user.
FSET
All factory defaults are listed in
CD-ROM > English > Documents > Manuals > MTSICS_for_WM_42101959...doc, Appendix 6.1.
10 Reset all settings to factory defaults
Factory setting 9600 baud, 8-N-1, no HS
COM90969390
COM91969390
It is recommended to adjust the weighing platform
at its place of installation using either the internal or
a suitable external weight during initial commissioning and at regular intervals thereafter.
7
Reference Guide
2 Documentation Overview
2.1
8
File Structure of the CD-ROM
WMH Weighing Platforms
WMH Weighing Platforms
2.2
Reference Guide
Where to Find What
#
Subject
Reference Document
1
Setting up, leveling, and releasing
the transport lock for high-capacity
platforms
CD-ROM > English > Documents >
Documents_K-Line >
K-Line_installation_information_.....pdf
2
Dimensions of weighing platforms
CD-ROM > English > Documents >
Documents_K-Line >
K-Line_installation_information_.....pdf
3
Planning of assemblies: Recommended and maximum preload,
preload range.
Note: The maximum preloads of
WMH and K-Line platforms are different.
CD-ROM > English > Documents > Engineering_Notes >
EN081_nn_Preloads_and_Adjustment.doc
4
Planning assemblies:
mounting possibilities
CD-ROM > English > Documents >
Documents_K-Line >
K-Line_installation_information_.....pdf
5
Installing high-capacity weighing
platforms
CD-ROM > English > Documents >
Documents_K-Line >
K-Line_installation_information_.....pdf
6
Detailed user manual for WMH
weighing platforms
CD-ROM > English > Documents >
Manuals >
WMH-Manual_e_42101977...pdf
9
Reference Guide
WMH Weighing Platforms
7
Detailed descriptions of all interface
commands and adjustment parameters
Document included in delivery or
CD-ROM > English > Documents >
Manuals > MTSICS_for_WM_42101959...doc
8
Optimum configuration of adjustable
parameters – process-specific configuration
CD-ROM > English > Documents >
Engineering_Notes >
EN051_nn_Process-SpecificConfiguration.pdf
9
Fast weighing of very small weights
– using the trigger mode
CD-ROM > English > Documents >
Engineering_Notes >
EN041_nn_Trigger-Mode.pdf
10
Use of digital inputs
CD-ROM > English > Documents >
Engineering_Notes >
EN041_nn_Trigger-Mode.pdf
Control
system
(e.g. SPS)
Weighing
substance
Photocell
gate
RS232 / RS422
Weighing
module
ConModule
RS232 / RS422
11
Use of digital outputs for checkweighing, plus/minus weighing,
weight control
CD-ROM > English > Documents >
Engineering_Notes >
EN071_nn_Weight_Monitoring.pdf
12
Use of digital outputs for dispensing
CD-ROM > English > Documents >
Engineering_Notes >
EN071_nn_Weight_Monitoring.pdf
10
WMH Weighing Platforms
13
System start after power failure;
maximization of process safety
Reference Guide
CD-ROM > English > Documents >
Engineering_Notes >
EN061_nn_PowerFail-Restart.pdf
CD-ROM > English > Documents >
Engineering_Notes >
EN011_nn_Process-Safety.pdf
14
Mechanical accessories:
stands, roller tracks, etc.
CD-ROM > English > Documents >
Documents_K-Line >
K-Line_operating_instruction_...pdf
15
Electrical accessories:
connection modules,
Profibus and DeviceNet modules
CD-ROM > English > Documents >
Manuals >
WMH-Manual_e_42101977....pdf
Chapter 8
16
Cleaning
CD-ROM > English > Documents >
Documents_K-Line >
K-Line_operating_instruction_...pdf
17
Spare parts, maintenance, repairs
Please contact the METTLER TOLEDO
service organization
CD-ROM > English > Documents >
Repair Form
11
Reference Guide
WMH Weighing Platforms
3 Technical Data
3.1
General Data
Power supply voltage
Power requirement at 24 VDC (typical)
While operating
During calibration/test with built-in weight (approx. 5 sec.)
When switching on (approx. 0.1 sec.)
Electrical connection
Recommended conductor cross-section for power supply wires
Recommended conductor cross-section for data wires
Interfaces
RS-232, bi-directional, full duplex
RS-422, bi-directional, full duplex, can be used on bus (120 ohms
termination)
IP protection level
Permissible environmental conditions
Temperature range
Altitude above MSL 1)
Relative humidity (at 30 °C / 85 °F)
Housing material
1)
12
10 VDC ... 28 VDC
2.5 W
4W
20 W
19-pin male, Binder type, series 423
0.25 mm2 (AWG 24)
0.14 mm2 (AWG 26)
2400 ... 38400 baud
7 or 8 bits
Parity: even, odd, or none
1 or 2 stop bits
Handshake parameters are ignored
IP67, IP66
5 °C ... 40 °C / 40 °F ... 105 °F
Max. 4,000 m / 13,330 ft
Max. 85 %
Chrome-nickel steel DIN X5 CrNi1810
When used at altitudes greater than 2,000 m above msl, the power supply unit for the weighing
platform must fulfill the standard which is applicable for this altitude.
WMH Weighing Platforms
3.2
Reference Guide
Technical Specifications
WMH
15
WMH
32
WMH
A15
WMH
A32
[kg]
15
32
15
32
60
150
Readability
[g]
0.1
0.1
0.1
0.1
1
Reproducibility (s) 2)
[g]
0.05
0.1
0.05
0.1
[g±]
0.2
0.2
0.2
0.2
Maximum load 1)
Linearity, typical
(temperature range 10....30 °C)
Dimensions of
weighing platform
* = weighing cell
180
251
86 *)
W
[mm]
D
Hmin-Hmax
350
280
117-130
WMH WMH WMH
B60 CC150 CC300
WMH
CS300
WMH
CS600
WMH
C300
WMH
C600
WMH
D600
WMH
D1500
WMH
E1500
WMH
E3000
WMH
ES1500
WMH
ES3000
300
300
600
300
600
600
1500
1500
3000
1500
3000
1
2
2
10
2
10
10
20
20
50
20
50
0.4
0.5
1
1
5
1
5
10
20
20
50
20
50
1
2
5
5
10
5
10
25
50
50
100
50
100
500
400
123-148
800
600
130-155
800
800
115-140
1000
800
115-140
1250
1000
180-205
1500
1250
182-207
1500
1500
197-222
Max. recommended preload 3)
[kg]
4
0
2
0
18
35
90
51
142
41
122
55
345
256
651
226
651
Preload range 4)
[kg]
7
3
5
3
29
63
147
107
255
97
235
168
627
538
1216
509
1216
Zero-setting range
[kg]
open
External weight or preload when calibrating/testing with external weight (C2)
– Minimum external weight
– Maximum preload
[kg]
[kg]
Maximum preload 5) when calibrating/testing with built-in weight (C3)
5
17
10
25
5
15
10
25
20
69
50
163
100
347
100
307
200
655
100
297
200
635
200
568
500
1627
500
1538
1000
3216
500
1509
1000
3216
8
14
6
14
34
75
170
131
301
121
282
214
745
655
1450
626
1450
10
8
20
14
10
6
20
14
40
34
100
75
200
170
200
131
400
301
200
121
400
282
400
214
1000
745
1000
655
2000
1450
1000
626
2000
1450
External weight 6) or preload for comparison of the internal calibr. factor (C4)
– Minimum external weight
– Maximum preload
[kg]
[kg]
Temperature range
– According to accuracy class II
– According to accuracy class III
[°C]
1)
2)
3)
4)
5)
6)
0…40
-10…40
Effective maximum load, depending on the preload. If this load is exceeded, the weighing platform responds with S+, Z+, or T+.
Corresponds to the standard deviation of 10 consecutive measurements with factory settings and under normal environmental conditions.
Max. recommended preload. After the preload has been put in place, no adjustment by the customer is necessary.
Preload range. These preloads can be added without reducing the nominal maximum capacity.
Calibration/test with high (pre)load with built-in weight not possible.
Sum of weights used plus preload is less than the maximum load.
13
For the future benefit of your METTLER TOLEDO product, and to preserve its
value, METTLER TOLEDO service assures its quality and measuring accuracy
for years to come. Please request full details of our attractive terms of
service.
Thank you.
Subject to technical changes.
Printed on 100 % chlorine-free paper.
For the sake of our environment.
© Mettler-Toledo GmbH 2005
Doc.Nr. KA021, 42908713C
Mettler-Toledo GmbH, CH-8606 Greifensee, Switzerland
Internet: http://www.mt.com
Printed in Switzerland, February 2005.
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