Reference Guide METTLER TOLEDO WMH Weighing Platforms

Transcription

1 Reference Guide METTLER TOLEDO Weighing Platforms Mettler-Toledo GmbH 2005 Doc.No. KA021, C

2 Weighing Platforms Reference Guide Contents 1 Initial Setup Installation Electrical Connection Connecting to a PC Quick Configuration Guide Documentation Overview File Structure of the CD-ROM Where to Find What Technical Data General Data Technical Specifications

3 Reference Guide 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 Documents_K-Line > K-Line_installation_information_...pdf. Installing the connection cable Connection cables up to 10 meters long are available as accessories. Route the connection cable so that it is protected from possible damage. 4

4 Weighing Platforms Reference Guide 1.2 Electrical Connection METTLER TOLEDO recommend connecting 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 EN :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 RS422 Pin Wire color Code Interface Remarks ConModule Terminal No. - Shielding Shield Shield 20 PIN A Grey-pink VSS (10..28VDC) Plus pole of supply voltage 11 PIN B Purple DGND RS232 Ground potential for RS PIN C Black Rx- (*Rx) RS422 Receiving wires RS PIN D Red DIN1 Digital input 1 8 PIN E Blue Factory Leave wire open 7 PIN F Pink DOT 1 Digital output 1 6 PIN G Grey Factory Leave wire open 5 PIN H Yellow DIN 0 Digital input 0 4 PIN J Green DIN 2 Digital input 2 3 PIN K Brown DOT 0 Digital output 0 2 PIN L White Tx+ (Tx) RS422 Transmission wires RS PIN M Red-blue TxD RS232 Transmission wire RS PIN N White-pink RxD RS232 Receiving wire RS PIN O Grey-brown GND (to VSS) Minus pole of supply voltage 18 PIN P White-grey Tx- (*Tx) RS422 Transmission wires RS PIN R Yellow-brown CTS RS232 Data flow control RS PIN S White-yellow RTS RS232 Data flow control RS PIN T Brown-green DOT 2 Digital output 2 14 PIN U White-green Rx+ (Rx) RS422 Receiving wires RS The wire color refers to the WM connection cables which are available as accessories. 5

5 Reference Guide Weighing Platforms 1.3 Connecting to a PC 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 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 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 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. 6

6 Weighing Platforms Reference Guide 1.4 Quick Configuration Guide A number of adjustable parameters allow the 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 EN051_nn_Process-Specific- Configuration.pdf for tips and examples about individual configuration of weighing platforms. # Subject Command Remarks / Example 1 Configuration of the interface parameters (RS232 and RS422) 2 Adjustment (calibration) of the weighing platform 3 Setting the weighing mode: weight control, dispensing, user defined COM Factory setting 9600 baud, 8-N-1, no HS COM COM C3, C2 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. 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: M30 Funct Tol Time Better repeatability is obtained by: - decreasing Tol (number of digits); - increasing time (seconds). Example: M 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 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. 10 Reset all settings to factory defaults FSET All factory defaults are listed in Manuals > MT- SICS_for_WM_ doc, Appendix

7 Reference Guide Weighing Platforms 2 Documentation Overview 2.1 File Structure of the CD-ROM 8

8 Weighing Platforms Reference Guide 2.2 Where to Find What # Subject Reference Document 1 Setting up, leveling, and releasing the transport lock for high-capacity platforms Documents_K-Line > K-Line_installation_information_...pdf 2 Dimensions of weighing platforms Documents_K-Line > K-Line_installation_information_...pdf 3 Planning of assemblies: Recommended and maximum preload, preload range. Note: The maximum preloads of and K-Line platforms are different. 4 Planning assemblies: mounting possibilities Engineering_Notes > EN081_nn_Preloads_and_Adjustment.doc Documents_K-Line > K-Line_installation_information_...pdf 5 Installing high-capacity weighing platforms Documents_K-Line > K-Line_installation_information_...pdf 6 Detailed user manual for weighing platforms Manuals > -Manual_e_ pdf 9

9 Reference Guide Weighing Platforms 7 Detailed descriptions of all interface commands and adjustment parameters Document included in delivery or Manuals > MT- SICS_for_WM_ doc 8 Optimum configuration of adjustable parameters process-specific configuration EN051_nn_Process-Specific- Configuration.pdf 9 Fast weighing of very small weights using the trigger mode EN041_nn_Trigger-Mode.pdf 10 Use of digital inputs Weighing substance Photocell gate Control system (e.g. SPS) RS232 / RS422 EN041_nn_Trigger-Mode.pdf Weighing module ConModule RS232 / RS Use of digital outputs for checkweighing, plus/minus weighing, weight control EN071_nn_Weight_Monitoring.pdf 12 Use of digital outputs for dispensing EN071_nn_Weight_Monitoring.pdf 10

10 Weighing Platforms Reference Guide 13 System start after power failure; maximization of process safety EN061_nn_PowerFail-Restart.pdf EN011_nn_Process-Safety.pdf 14 Mechanical accessories: stands, roller tracks, etc. Documents_K-Line > K-Line_operating_instruction_...pdf 15 Electrical accessories: connection modules, Profibus and DeviceNet modules Manuals > -Manual_e_ pdf Chapter 8 16 Cleaning Documents_K-Line > K-Line_operating_instruction_...pdf 17 Spare parts, maintenance, repairs Please contact the METTLER TOLEDO service organization Repair Form 11

11 Reference Guide 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 10 VDC VDC 2.5 W 4 W 20 W 19-pin male, Binder type, series mm 2 (AWG 24) 0.14 mm 2 (AWG 26) baud 7 or 8 bits Parity: even, odd, or none 1 or 2 stop bits Handshake parameters are ignored IP67, IP66 5 C C / 40 F F Max. 4,000 m / 13,330 ft Max. 85 % Chrome-nickel steel DIN X5 CrNi1810 1) 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. 12

12 Weighing Platforms Reference Guide 3.2 Technical Specifications A15 A32 B60 CC150 CC300 CS300 CS600 C300 C600 D600 D1500 E1500 E3000 ES1500 ES3000 Maximum load 1) [kg] Readability Reproducibility (s) 2) [g] Linearity, typical (temperature range C) Dimensions of weighing platform * = weighing cell W D Hmin-Hmax [g] [g±] 0.2 [mm] Max. recommended preload 3) [kg] 4 Preload range 4) [kg] *) Zero-setting range [kg] open External weight or preload when calibrating/testing with external weight (C2) Minimum external weight [kg] Maximum preload [kg] Maximum preload 5) when calibrating/testing with built-in weight (C3) External weight 6) or preload for comparison of the internal calibr. factor (C4) Minimum external weight [kg] Maximum preload [kg] Temperature range According to accuracy class II According to accuracy class III [ C] ) Effective maximum load, depending on the preload. If this load is exceeded, the weighing platform responds with S+, Z+, or T+. 2) Corresponds to the standard deviation of 10 consecutive measurements with factory settings and under normal environmental conditions. 3) Max. recommended preload. After the preload has been put in place, no adjustment by the customer is necessary. 4) Preload range. These preloads can be added without reducing the nominal maximum capacity. 5) Calibration/test with high (pre)load with built-in weight not possible. 6) Sum of weights used plus preload is less than the maximum load. 13

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, C Printed in Switzerland, February Mettler-Toledo GmbH, CH-8606 Greifensee, Switzerland Internet: