Avago HEDS-8949 Operation & User’s Manual

HEDS-8969 alignment kit. The kit features real-time IC monitoring the IC output during user alignment. The alignment kit consists of the IC interface hardware and Windows software. The IC interface hardware is a mi- crocontroller system that connects the HEDS-8949 / HEDS-8969 encoder to the PC through a USB cable. This user manual includes hardware setup, software setup and softwar ...

Figure 3. Alignment kit components for HEDS-8969 Figures 2 and 3 show the various components provided in the alignment kits. The USB cable (1) connects to the USB port of the alignment kit (2). Figure 1. Inside the alignment kit box 2. Hardware Components Unpacking the Unit Figure 1 illustrates the typical packing of the HEDS-8949/ HEDS-8969 alignment kit. The package includes:- 1. USB cable 2. Alignment ...

Connect the alignment kit to your PC using the provided USB cable. When the alignment module is powered-up the red LED will illuminate. The green LED will blink when there is communication between the PC and encoder. The kit’s current consumption is less than 200 mA. The kit includes a 100 mA current limiting circuit for the encoder. If the current c ...

PIN Name Function PIN 1 INCA Incremental A Input PIN 2 INCB Incremental B Input PIN 3 PIN 4 PIN 5 SCL+ SSI Shift Register Clock PIN 6 SPI_SI SPI Data Input PIN 7 SPI_CLK SPI Clock PIN 8 NSL+ SSI Enable PIN 9 LERR Error pin PIN 10 GND IC Ground PIN 11 Zero_RST Zero Reset Input PIN 12 DOUT SSI Data Output PIN 13 Vdd IC supply PIN 14 LocTest Alignment Locate Signal PIN 15 MSBINV Inverted Counting Input PIN 16 ...

Figure 8. Software installation start up screen. Click Next to start installation. 3. Software Installation The user manual and the programmer application software are on the installation CD. To install the applica- tion software, browse the installation CD using Explorer and double-click the 'Avago AEAT-9000 Alignment Kit' ...

The installation process will continue after the step shown in Figure 10, and finally, an “Installation Complete” screen will be shown. Locate the software by selecting Start > All Program > Avago AEAT-9000 Alignment Kit > AEAT-9000 Alignment Kit to run the software. To uninstall the software, open the Windows’ Control Panel, run the ”Add or Remove Program”, and locate ”Avago AEAT-9 ...

4.1 Device Monitoring To run the application software, click Start > All Program > Avago AEAT-9000 Alignment Kit > AEAT-9000 Alignment Kit. After selecting the software, the screen in Figure 11 will appear. The software has two tabs: Device Monitoring and Alignment. Device Monitoring provides real-time display of encoder data, and Alignment provides the interface for aligning the code disc. Figure 11 shows the main screen of the s ...

Selection of signal pairs for signal plotting Virtual Oscilloscope The Zero Reset button allows the user to zero offset the encoder’s position data. When clicked, the alignment kit will be commanded to send a short HIGH pulse of 10 ms to the Zero_RST pin of the encoder. Check the ‘MSB Invert’ check box if inverted counting is required. When ‘MSB Invert’ is checked, the alignment kit will output a HIGH level on t ...

The alignment mode provides an interface for monitoring the LocTest and TiltOut signals for aligning the code disc. Figure 13 shows the alignment mode screen. The alignment mode measures and analyzes the LocTest and TiltOut signals and provides necessary alignment data to the user. The description of each alignment parameter is given in Table 2. Figure 13. Alignment mode ...

Vp-p MAX (LOCTEST) The maximum peak-to-peak voltage for the LOCTEST signal. The amplitude of the signal will depend on the total stack-up TIR of the code wheel. 1.90 2.00 2.10 2.20 2.30 2.40 2.50 2.60 2.70 2.80 0 45 90 135 180 225 270 315 360 Nominal V Duty % AVG Duty % is calculated on the TiltOut signal with the following formula: V ( ) SLO 0° 180° 360° t T t Duty % = x 100% T The average value of Duty % is then calculate ...

specification dialog Software will analyze the alignment data and provide a PASS/FAIL indicator based on a set of specification limits provided by the user. To enter the specification limit setting menu, select Tools > Specification as shown in Figure 14. A specifica- tion settings dialog will then pop-up as shown in Figure 15. The purpose of each parameter is described in Table 3. Table 3. Specification settings ...

This section describes the step-by-step procedures for updating the firmware of the HEDS-8949/8969 alignment box. 5.1 System Requirement The following items are required for updating the firmware of the alignment box • PC running Microsoft Windows XP operating system or later, and a free USB port • iBootloader Downloader PC software executable • Avago HEDS-8949/8969 firmware Hex file (*.hex) 5.2 Procedure Start the iBootloader Do ...

To update the firmware, the user must switch the alignment box into bootloader mode by clicking the “Boot Mode” button shown in Figure 17. Once completed, the software will prompt a “Device attached” message and more button options are enabled, as shown in Figure 18. Figure 18. Alignment box detected and running in bootloader mode ...

Figure 20. Program verify process and upon completion of Hex file. Click the “Open Hex File” button and an open file dialog will be prompted. Locate and select the firmware Hex file as shown in Figure 19. Proceed with the firmware update by clicking the “Program/Verify” button as shown in Figure 20. ...

Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies in the United States and other countries. Data subject to change. Copyright © 2005-2013 Avago Technologies. All rights reserved. AV02-3143EN - September 24, 2013 The firmware update will start and the progress status of the update will be shown in a message prompt. The fi ...