The SKF Machine Tool Observer MTx is a stand alone data logger system for machine tools and machine tool spindles which offers benefits to both OEM and end users. It can easily be integrated into new machines or retrofitted as an upgrade for existing machines.
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INTRODUCTION This is a summary. A summary of the subject just dealt with can be quoted in the left margin in grey letters. 1 - 6 - 6 SKF Condition Monitoring Centre – Steyr...
HARDWARE 3.1. GENERAL DESCRIPTION The SKF Machine Tool Observer MTx can handle up to six different types of sensors, where 14 of them can be connected at the same time. • Acceleration sensors: - Triax accelerometer [CMSS-ONL-1500E-2] - SKF Vibration Sensors - Standard industrial sensor ...
• Max. shock survival: 10 000 g • Sensitivity: 34 mV/g The maximum supply voltage of 3,6 +0,3 Vdc must not be exceeded, otherwise the triax sensor will be destroyed. SKF Condition Monitoring Centre – Steyr 1 - 6 - 11...
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The low-impedance signal can be transmitted over long cable distances and used in dirty field or factory environments with little degradation. Usually these sensors only can provide one axis acceleration measurement. 1 - 6 - 12 SKF Condition Monitoring Centre – Steyr...
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Warning: If you use non standard industrial sensors without disabling the supply-current (by setting the jumpers to ’standard industrial sensors’) the sensor can be destroyed. Please find a connection plan and the appropriate jumper settings in section 3.4. SKF Condition Monitoring Centre – Steyr 1 - 6 - 13...
3.2.2. Rotation sensors There is a possibility to connect three different types of rotation sensors to the MTx. As mentioned the device provides rectangle signals where the pulses represent the rotation velocity. The number of pulses to be one turn can be adjusted in software.
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Although it is very often used in SKF the MTx also provides signals coming from a interface (Siemens, VS-Sensorik und Heidenhain). And the 5 V coming from this interface can be directly connected to the MTx and also the pulses/turn can be adjusted in software.
This input option supports all sensors with a switching output such as pressure of fluids, force, supply voltage inspection, (end) position sensors, ... The MTx therefore can provide switching voltages up to 24 V. If the desired sensor is a simple switch the 24 V sensor-supplies can be used of course.
Sensors connected to this input can provide 0 V to 24 V. As described above a voltage divider which divides the input by 7,8 is used because the ADC can only handle a maximum of 3,3 V. SKF Condition Monitoring Centre – Steyr 1 - 6 - 17...
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Eddy current probe systems are the best solution for shaft position measurements in sleeve bearing equipment. The selec- tion and specifications of SKF’s range of eddy current probes is detailed in a separate cat- alog.
Fig. 3/17 ... Connection examples 3.2.6. Temperature sensors The SKF Machine Tool Observer MTx supports two temperature sensors, Pt100 and KTY84- 130. This sensors are predefined in the software. The resistance changes with the temperature and the voltage on the sensor is measured.
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HARDWARE Parameters in software: 1. Offset: Defines the offset in °C for fine adjustment. Fig. 3/18 ... Connection example SKF Condition Monitoring Centre – Steyr 1 - 6 - 21...
HARDWARE 3.3. SWITCHING OUTPUTS Further features of the MTx are the two switch-outputs. These are realized with onboard relays. The threshold level configurations can be set up in software. Specifications • Rated voltage: 250 Vac • max. switching voltage: 400 Vac •...
HARDWARE 3.4. CONNECTION PLAN AND JUMPER SETTINGS Fig. 3/19 ... MTx connection plan 3.4.1. Supply voltage Signal name Note X10.1 Power supply GND MTx supply ground X10.2 Power supply (8 to 30 Vdc) MTx supply voltage X10.3 Sensor supply 24 Vdc Additional supply for sensors Fig.
Supply current for Y axis Supply current for X axis 3.4.5. Triax accelerometer [CMSS-ONL-1500E-2] Signal name Triax accelerometer X5.1 Sensor supply 3,3 V White X5.2 Signal in Z direction Yellow 1 - 6 - 24 SKF Condition Monitoring Centre – Steyr...
3.4.9. Universal sensor input connector (n here can be 1 to 10) Signal name Note X1-n.1 Sensor supply 24 Vdc supply for sensors X1-n.2 Sensor signal Input-unit/type defined in software X1-n.3 Sensor ground SKF Condition Monitoring Centre – Steyr 1 - 6 - 25...
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Switching sensors e.g. Air pressure J1-n.2 4-20mA Sensor e.g. Humidity sensors J1-n.3 Pt100 or KTY84-130 Temperature sensor J1-n.4 Reserved Not yet in use J1-n.5 Reserved Not yet in use 1 - 6 - 26 SKF Condition Monitoring Centre – Steyr...
The SKF Machine Tool Observer MTx Software consists of two parts: • MTx Server • MTx Client The MTx Server manages the communication with the MTx devices. The MTx Client uses the server to configure and retrieve information from the MTx devices Fig. 4/1 ..MTx System Machine tool spindle Typical PLC’s...
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5 seconds, an event with extra cells is recorded with detailed spindle history and accurate date and time stamp of occurrence in order to verify spindle warranty conditions. Fig. 4/3 ... Matrix cell 1 - 6 - 28 SKF Condition Monitoring Centre – Steyr...
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(maximum 250 entries) is recorded in the logging screen. If the MTx has recorded more than 15 events, the system will automatically merge the smallest X-value into the matrix, that means this events are not visible anymore in the matrix.
1.7 or above) is installed, before it copies the server files to the disc. If JAVA isn't installed the installer automatically launches the JAVA setup. Fig. 4/7 If the installation was completed successfully, the MTx Server Monitor and MTx Server Con- figuration applications may be started automatically. Fig. 4/8 ...
A list of recipients, which should receive a notification via e-mail if the MTx device is oper- ated out of bounds, is given in the right most column for each MTx device. To edit the list of recipients, client onto the button.
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The Recipient Management dialog will show: Fig. 4/11 If a required MTx device is not automatically located, it may be added manually. If no con- nection to the MTx device can be established, a network configuration error is the most like- ly cause.
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Some providers, like gmx or Google Mail, may not be reachable from within the SKF net- work due to closed TCP ports. SKF Condition Monitoring Centre – Steyr...
Fig. 4/15 A right click on the icon in the system tray will provide a menu to start/stop the MTx server and to launch the MTx server configurator application.
SOFTWARE 4.2. MTx CLIENT SOFTWARE 4.2.1. Client installation To install the MTx Client software click ’Install Client’ on the autostart menu from the CD or start the ’ClientSetup.exe’ on the CD. Follow the instructions of the installer. The installer checks automatically if JAVA (version 1.7 or above) is installed, before it copies the client files to the hard disc.
After the connection is established the connect button turns into the disconnect button and a list of connected and registrated devices on the connected server is shown. Green marked devices are selectable. Red devices are not activated, e.g. machine ist switched off. 1 - 6 - 36 SKF Condition Monitoring Centre – Steyr...
To connect to a device double click on the description in the list and the Login-dialog will be shown. One of four users can be selected: • Administrator: has reading and all writing rights of the MTx-device, initial password is ’qtc’ • Operator: has reading rights, writing rights and password can be chosen from the administrator, initial password is ’qtc’...
Fig. 4/20 If the MTx device is connected for the first time, the basic configuration dialog is shown. 4.2.5.1. File Fig. 4/21 * Click on ’File – Close’ or press ALT+F4 to shut down the MTx Client software.
* Click on ’Device – Basic Configuration’ or press STRG+B to open the dialog box. Fig. 4/23 • Set the data and time for the MTx device. The current system date and time may be set automatically. • Set the designation for the MTx device. This name is used to identify the MTx device.
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Fig. 4/25 • Acceleration input: The configuration of the acceleration sensor is saved to the current MTx device. The calibrator factor can be used for fine tuning the sensor output by using a exciter with a defined g value.
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Fig. 4/27 • Universal input: The MTx device has 10 universal inputs. For each universal input, a separate tab provi- des configuration options. Each universal input configuration can be saved to the MTx device. For an universal input one of 6 sensor inputs can be chosen. For description of the parameters see sec- tion 3.2.2.
If a Y-value doesn't fit into the current matrix the Y-axis is refitted. In total the MTx system supports five different layers. Each layer is a unique different matrix with free configurable input sensors.
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SOFTWARE Fig. 4/31 The MTx device has two switching outputs. For each output a limit of each sensor value and a holding time (duration) can be set. All deactivated inputs should set to their maximum val- ue to avoid wrong alarms.
In the options menu the appearance of the client can be changed. The current language and skin can be chosen and the information about device alerts can be turned on or off. 1 - 6 - 46 SKF Condition Monitoring Centre – Steyr...
* Click on ’Option – Alert Settings’ to open the dialog box. Fig. 4/36 4.2.5.3.3. Skins * Click on ’Option – Skins’ to open the dialog box. Fig. 4/37 The menu point skins changes the design of the user interface. SKF Condition Monitoring Centre – Steyr 1 - 6 - 47...
SOFTWARE 4.2.5.4. Help Fig. 4/38 4.2.5.4.1. About MTx * Click on ’Help – About MTx’ to open the information box. Fig. 4/39 1 - 6 - 48 SKF Condition Monitoring Centre – Steyr...
4.2.6. Main screen 4.2.6.1. Monitor mode The monitor mode tab allows access to the live data from the MTx device. A chart for each input can be selected in the drop down menu. To start or stop the monitor mode the Start/ Stop-Monitor-Mode button has to be pushed.
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SOFTWARE Fig. 4/41 ... Split screen After selecting the check box ’Split Screen View’, two sensor inputs will be shown at the same time. 1 - 6 - 50 SKF Condition Monitoring Centre – Steyr...
The matrix tab shows the actual matrix data, the event tab contains the occurred events with extra cells from the matrix. Configuration of the matrix see section 4.2.5.2.3. Fig. 4/42 SKF Condition Monitoring Centre – Steyr 1 - 6 - 51...
....The delete button clears all 15 matrices saved for a single layer. 4.2.6.3. Logging If a switching-output limit is passed, a logging entry is generated in the MTx-device. Maxi- mum number of entries is 50. If more than 50 entries occur the oldest one will be deleted.
APPENDIX 5. APPENDIX 5.1. CHANGING IP-SETTINGS The MTx Box is delivered with a standard static IP address configuration: IP-Address: 192.168.1.100 If it is necessary to change these settings it can be done using the web interface. * Open your browser and enter the IP Address 192.168.1.100 into the address field of your internet browser.
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IP-address can be set. To accept the changes in the IP-settings press OK and the apply settings menu item on the left side menu. 1 - 6 - 56 SKF Condition Monitoring Centre – Steyr...
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APPENDIX • The box sets the new configuration and restarts its network communication device. Fig. 5/4 * Close the browser or browser tab to leave the configuration menu. SKF Condition Monitoring Centre – Steyr 1 - 6 - 57...
4 mA to 20 mA sensor which represents all sensors with a current-output, e.g. Humidity sensor (0 to 100% relative humidity) Temperature sensors (e.g. KTY84-130, Pt100) 1 - 6 - 60 SKF Condition Monitoring Centre – Steyr...
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5 to 65 °C (40 to 160 °F) Temperature sensitivity ± 0,01 %/°C Cable length 2 m (78.74 in.) Extension cable CMSS-ONL-1500EXT-10 5 pole plug connector and open cable end Cable length 10 m (393.70 in.) SKF Condition Monitoring Centre – Steyr 1 - 6 - 61...
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