Avago Technologies HEDS-8949 User Manual
HEDS-8949 & HEDS-8969
Alignment Kit for AEAT-9000 Encoders
User Manual
1. Introduction
Overview
This user manual describes the Avago HEDS-8949 and
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 microcontroller 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
software operating illustrations.
Features
• Bus-powered USB device
• Real-time monitoring of LocTest and TiltOut output
• Real-time monitoring A/B Incremental signal pairs or
Sine/Cosine signal pairs.
• Real-time monitoring of SSI data.
• Data capturing rate at 4000 samples per second
Ordering Information
HEDS-8949 for AEAT-9000-1GSH0
HEDS-8969 for AEAT-9000-1GSH1 and AEAT-9035
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 module (HEDS-8949/8969)
3. Encoder cable (HEDS-8949/8969)
(24/30 pin for HEDS-8949, AEAT-9000-1GSH0)
or
(24/16 pin for HEDS-8969, AEAT-9000-1GSH1/AEAT-9035)
4. Installation CD
Figure 1. Inside the alignment kit box
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).
2
1
3
Figure 2. Alignment kit components for HEDS-8949 Figure 3. Alignment kit components for HEDS-8969
4
3
1
2
4
2
Figures 4 and 5 show the HEDS-8949/ HEDS-8969 alignment modules.
Figure 5. Alignment module top cover for HEDS-8969Figure 4. Alignment module top cover for HEDS-8949
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 consumption for the alignment kit exceeds 100 mA, the programmer will cut o the supply to the encoder.
On the left side of the programmer is the programming connector, which is a 24-pin (2 x 12) rectangular header.
This connector is used to connect a cable harness to the encoder. Figure 6 shows the encoder cable and connectors.
The programming connector pin names and function are described in Table 1 (shown on next page).
Use for AEAT-9000-1GSH0
Matching
Connector
Encoder Connector
(To Target System)
Pin 1
23 21 19 17 15 13 11 9 7 5 3 1
24 22 20 18 16 14 12 10 8 6 4 2
Figure 6. Encoder cable and connectors: 24-way cable for connecting the encoder IC of the target system
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The encoder cables are shown below in gures 7a and 7b.
Figure 7a. Encoder cable, HEDS-8969 (for AEAT-9000-1GSH1/AEAT-9035) Figure 7b. Encoder cable, HEDS-8949 (for AEAT-9000-1GSH0)
Table 1. Programming connector pin descriptions
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
PIN 17
PIN 18 TiltOut Tilt Alignment Output
PIN 19 DIN+ SSI Data Input
PIN 20 SPI_SO SPI Data Output
PIN 21 Cosine+ Cosine+ Input
PIN 22 Sine+ Sine+ Input
PIN 23 Cosine- Cosine- Input3
PIN 24 Sine- Sine- Input4
4
3. Software Installation
The user manual and the programmer application software are on the installation CD. To install the application software, browse the installation CD using Explorer and double-click the 'Avago AEAT-9000 Alignment
Kit' icon. The installation will run automatically. Figures 8, 9 and 10 illustrate the software installation process.
Figure 5: Software installation start up screen. Click Next to start installation.
Figure 8. Software installation start up screen. Click Next to start installation.
Figure 9. Installation folder selection screen. Specify the installation folder to change the default path. Click Next to continue.
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