iC-tools SC preliminary SIN/COS INTERFACE ADAPTER TO PC-USB 2.0 Rev A2, Page 1/9 FEATURES APPLICATIONS ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ PC based machine control system ♦ Portable, easy to use field tool ♦ R&D Lab tool Small and portable design Standard header for flexible interface Multi-channel capable with easy to use software Input frequency of up to 70 kHz Input amplitude: 10 mV to 0.7 V Common mode input voltage: 0.8 V to 3.0 V Automatic SIN/COS signal quality measurement: Offset, Amplitude, Phase and Common Mode ♦ USB bus powered 5 V and 3.3 V supply outputs to power encoder or sensor of up to 250 mA ♦ Processing of reference (index) marker PACKAGES USB mini interface with 14-pin connector SYSTEM VIEW Copyright © 2013 iC-Haus http://www.ichaus.com preliminary iC-tools SC SIN/COS INTERFACE ADAPTER TO PC-USB 2.0 Rev A2, Page 2/9 DESCRIPTION The iC-tools SC is an easy to use and portable SIN/COS encoder measurement system. It is particularly suited for development labs and for in-field system maintenance to quickly assess the quality of encoder SIN/COS signals. The iC-tools SC automatically measures and reports the SIN/COS offsets, amplitude and phase mismatch and calculates the angular position (Figure 1 and Figure 2). The common mode is also measured to provide a quick overall view of the encoder integrity. The angular data can be displayed in several units, such as mm, inch, mil, deg, etc. (Figure 3). The flexibility and ease of use allows the iC-tools SC to be directly used for machine measurement tasks, appli- Figure 1: Angular Position cations traditionally served by dedicated display and measurement units. The iC-tools SC is flexible and scalable. Multiple USB devices can be connected to the host PC each independently processing one SIN/COS channel, yet integrated into one graphical control software. The iC-tools SC can process input amplitudes between 10 mV to 0.7 V. The common mode range is 0.8 V to 3 V. The maximum input frequency is 70 kHz. The iC-tools SC is USB bus powered and provides stable and regulated 5 V and 3.3 V supplies of up to 250 mA for powering the connected encoder or sensor. Figure 2: Analog Signal Measurement Figure 3: Numerical Display preliminary iC-tools SC SIN/COS INTERFACE ADAPTER TO PC-USB 2.0 Rev A2, Page 3/9 CONNECTORS PIN CONFIGURATION SIN/COS Sensor Interface PIN FUNCTIONS No. Name Function 1 V5 2 V3 3 4 5 6 7 8 9 10 11 12 13 14 PIN CONFIGURATION Mini-B USB 5-pole GPIO0 GPIO1 GPIO2 GPIO3 GND GND SIN+ SINCOS+ COSIDX+ IDX- +5.0 V Field Supply Output (250 mA max.) +3.3 V Field Supply Output (250 mA max.) General Purpose InOut General Purpose InOut General Purpose InOut General Purpose InOut USB Ground (0 V) USB Ground (0 V) Pos.-going Sine Input Neg.-going Sine Input Pos.-going Cosine Input Neg.-going Cosine Intput Pos.-going Index Input Neg.-going Index Input PIN FUNCTIONS No. Name Function 1 2 3 4 5 VCC DD+ ID GND 5 V USB Supply Input Data Line Data Line Identifier: A = GND, B n.c. USB-Ground (0 V) preliminary iC-tools SC SIN/COS INTERFACE ADAPTER TO PC-USB 2.0 Rev A2, Page 4/9 ABSOLUTE MAXIMUM RATINGS Beyond these values damage may occur; device operation is not guaranteed. Item No. Symbol G001 PIN1-14 Parameter Conditions All Input Pins Unit Min. Max. -0.3 5.8 V THERMAL DATA Item No. T01 Symbol Parameter Conditions Unit Min. Temp Operational Temperature Range All voltages are referenced to ground unless otherwise stated. All currents flowing into the device pins are positive; all currents flowing out of the device pins are negative. 0 Typ. Max. 55 °C preliminary iC-tools SC SIN/COS INTERFACE ADAPTER TO PC-USB 2.0 Rev A2, Page 5/9 ELECTRICAL CHARACTERISTICS Item No. Symbol Parameter Conditions Unit Min. Typ. Max. Power Supply Input 001 Power USB Maximum Power Consumption from USB Bus see USB specifications 500 mA Power Supply Output (V5, V3) 101 V5 Field Power Supply 102 I(V5) Field Power Supply 103 V3 Field Power Supply 104 I(V3) Field Power Supply 4.75 5 I(V3) = 0 mA 3.135 3.3 5.25 V 250 mA 3.465 V 250 mA 0.8 3 V 10 700 mV I(V5) = 0 mA Signal Inputs (SIN+, SIN-, COS+, COS-) 201 Vcm() Permissible Input Common Mode Voltage Range 202 Vin() Permissible Input Amplitude 203 fin() max Permissible Input Frequency for Position Measurement 70 kHz 204 fmax Permissible Input Frequency for Parameter Measurement 20 kHz 205 Err Parameter Measurement Error 10 % 206 Rin Input Resistance 10 MOhm Can be applied differential or single ended. (see Figure 4) Index Inputs (IDX+, IDX-) 301 Vin Input Voltage Range 0 5 V 0 5.5 V General IO Input (GPIO0 - GPIO3) 401 PIN3-6 Input Voltage Range GPIOx configured as input General IO Output (GPIO0 - GPIO3) 501 PIN3-6 Output Voltage High GPIOx configured as output 3.3 V 502 PIN3-6 Output Voltage Low GPIOx configured as output 0 V V 5V 4V Differential Mode Single-Ended Mode 3.35V +IN 3V Vcm = 3V +IN -IN VIN = 0.7V Vcm = 2.65V -IN VIN = 0.7V 2V +IN VIN = 0.7V 1V -IN VIN = 0.7V Vcm = 1.15V +IN Vcm = 0.8V -IN 0.45V t Figure 4: Permissible input amplitude (elec. char. no.: 202) iC-tools SC preliminary SIN/COS INTERFACE ADAPTER TO PC-USB 2.0 Rev A2, Page 6/9 SYSTEM EXAMPLE iC-tools SC can be used to transfer position data of a magnetic interpolator (e.g. iC-MH8) to a windows pc. The iC-MH8 offers analog pins to grip the differential sine and cosine signals generated by the built-in Hall sensor. These pins must be connected to the iC-tools SC in the following manner. shaft is used to generate the magnetic field. The motor power is also reclaimed from the iC-tools SC. When connected to a windows pc, the iC-tools SC is automatically installed to the operation system. There is no need for any hardware drivers! After the iC-tool SC is detected by your computer, the iC-tools SC software can be downloaded at the iC-tools internet page. Setup.exe starts the easy installation process, which includes all information nedded. Figure 5: Connection of System Components First, the ground pins of the iC-tools SC should be connected to the reference potential of the iC-MH8 chip. To find the correct pins, there is a short connector description at the bottom of the iC-tools SC. The field power supply (5V) can be used to power the iC-MH8. Thus, there is no need for any another power sources besides USB. As Figure 5 shows, the iC-MH8 outputs PSOUT, NSOUT, PCOUT and NCOUT have to be connected to the corresponding pins at the iC-tools SC connector. If there is no need for the index signal, IDXand IDX+ can be put to ground. The general I/O pins can be left floating as well. Figure 6: System Overview Figure 6 shows a real world example of the iC-tools SC. As described above, the iC-tools SC is connected to the differential analog interface of a iC-MH8 demo board. A standard 14 pin ribbon cable is used to connect the two devices. A motor with a magnet at the Figure 7: Main Window When the installer is finished, the program can be started by clicking the iC-tools SC logo in the windows start menu. The iC-tools SC must be plugged into the USB port now. The iC-tools main window appears as shown in Figure 7. The iC-tools SC can be renamed by clicking into the ID label at the bottom. So, it is possible to choose a meaningful expression for that channel. This function helps to find a specific device, when using multiple iC-tools SC at once. Before starting analyzing sensor signals, the device has to be setup correctly. This can be done by clicking onto the arrow next to the ID label. The appearing system window allows to change the Periods per revolution. For the MH8 demoboard, it has to be changed to 1, because the magnet has one terminal pair only. The Millimeter per period configuration does not have to be altered. It is only important for systems with linear sensor technology. The other configuration options can be left unchanged as well. Figure 8: Increments First, the display window should be opened as shown in Figure 8 by clicking on the tool button B in Figure 7. The default configuration shows the incremental position. If the motor is running and everything is setup correctly, the increment should increase. If the value iC-tools SC preliminary SIN/COS INTERFACE ADAPTER TO PC-USB 2.0 Rev A2, Page 7/9 appears in red font color, the display windows must be resized, because the number does not fit into the display window. Figure 9: Revolution per Second Figure 11: Sensor Window Another interesting value can be the velocity. Therefor another display window must be opened and the Unit has to be changed to Revolution. Now, the display counts the complete revolutions of the magnet. Changing the Mode configuration to Unit per second makes the display showing the velocity of the motor as revolution per second. There are other display configuration to explore. It is possible to open as many display windows as desired. The third tool shows information about the sensor signal quality. It can be opened by clicking on the tool button C. The sensor window as shown in Figure 11, displays electrical characteristic of the sine and cosine sensor signals. The signal offset, the phase angle, the signal amplitudes and the common mode voltage can be examined. These values can be used to calibrate the iC-MH8 for field application. Due to the measurement algorithm, the periods of the magnet must not differ too much to get useful information. In case of the iC-MH8 demoboard, the magnet only has one period. Figure 12: Helpsystem Figure 10: Dial Window The tool button A opens a dial to show the actual angle position. To try this feature, the motor should be disconnected from the power source. The dial window can be resized to any desired size. When turning the shaft by hand, the display in the middle of the dial shows the actual angle. Resolution can be changed by clicking the control at the bottom of the dial window. By clicking on the tool button E, the screen shows the iC-tools help system. There are information about the hardware configuration and the software features available. By hitting the update button at the bottom of the help page, it is possible to check for software updates. The windows internet configuration must be setup correctly to use this feature. If there is a new software version available, a message shows where a download of the newest version can be found. iC-tools SC preliminary SIN/COS INTERFACE ADAPTER TO PC-USB 2.0 Rev A2, Page 8/9 iC-Haus expressly reserves the right to change its products and/or specifications. An info letter gives details as to any amendments and additions made to the relevant current specifications on our internet website www.ichaus.de/infoletter; this letter is generated automatically and shall be sent to registered users by email. Copying – even as an excerpt – is only permitted with iC-Haus’ approval in writing and precise reference to source. iC-Haus does not warrant the accuracy, completeness or timeliness of the specification and does not assume liability for any errors or omissions in these materials. The data specified is intended solely for the purpose of product description. No representations or warranties, either express or implied, of merchantability, fitness for a particular purpose or of any other nature are made hereunder with respect to information/specification or the products to which information refers and no guarantee with respect to compliance to the intended use is given. In particular, this also applies to the stated possible applications or areas of applications of the product. iC-Haus conveys no patent, copyright, mask work right or other trade mark right to this product. iC-Haus assumes no liability for any patent and/or other trade mark rights of a third party resulting from processing or handling of the product and/or any other use of the product. preliminary iC-tools SC SIN/COS INTERFACE ADAPTER TO PC-USB 2.0 Rev A2, Page 9/9 ORDERING INFORMATION Type Package Order Designation iC-tools SC 100 mm x 27 mm x 11 mm transparent polycarbonate iC-tools SC miniUSB-14 For technical support, information about prices and terms of delivery please contact: iC-Haus GmbH Am Kuemmerling 18 D-55294 Bodenheim GERMANY Tel.: +49 (61 35) 92 92-0 Fax: +49 (61 35) 92 92-192 Web: http://www.ichaus.com E-Mail: [email protected] Appointed local distributors: http://www.ichaus.com/sales_partners