Page 1
F-FEM-DAC Operating Manual August 2003 ID Number: AT1085E Rev. 04 User’s Guide...
Page 2
The contents of this document may not be reproduced in any form or communicated to any third party without the prior written consent of AVL. While every effort is made to ensure its correctness, AVL assumes no responsibility for errors or omissions which may occur in this document or for damage caused by them.
Page 3
AVL can offer no warranty nor accept any liability if the product is used in applications other than those described or if the necessary prerequisites and safety measures are not met.
Inhaltsverzeichnis Inhaltsverzeichnis Preface General Information About the F-FEM-DAC....3 Use and Contents of this Manual........4 System Environment............5 Data Transfer between Test Bed and PUMA Open System................6 Typographic Conventions ..........6 Online Help..............7 We Want To Hear From You .......... 7 General Basic Information ............9...
FEMs Classic (older generation) and F-FEMs (new generation) can be operated parallel to each other in the PUMA Open system. Purpose of the The F-FEM-DAC is used for the output of analog signals and has an F-FEM-DAC interface for connection to an F-FEM-DIO. The signals can be transferred directly to/from the PUMA test bed computer or via another type of F-FEM module (e.g.
Use and Contents of this Manual Use and Contents of this Manual This manual deals with the I/O component F-FEM-DAC in the PUMA Open system. It describes the hardware (pin assignment, power supply, etc.) and the software (function in the PUMA Open system, etc.).
F-FEM-AIN or F-FEM-AIS (electrically isolated), connected to the PUMA Open system via F-FEM-CON FEM P, connected to the PUMA Open system via F-FEM-AIN or F-FEM-AIS F-FEM-DAC F-FEM-DAC F-FEM-DAC F-FEM-DAC O p e r a t i n g M a n u a l...
Data Transfer between Test Bed and PUMA Open System At the PUMA Open system, demand values are calculated and trans- ferred to the output modules. At the F-FEM-DAC, the digital demand values are converted into analog quantities (current/voltage) again, e.g. to control a throttle actuator.
To obtain context-sensitive information about a given topic, hit F1. We Want To Hear From You AVL continually strives to improve its documentation and, with this thought in mind, we would like to hear what you have to say about it.
Page 12
We Want To Hear From You h t t p : / / w w w . a v l . c o m...
For example, the actuators can be connected directly to the F-FEM-DAC. The device has four analog channels which are electrically isolated from each other and from the processor unit. Each analog output channel can be used either as voltage output or current output.
Cascading Cascading The F-FEM-DAC is part of a family of Front End Modules that operate together on a network. An interface up to 400 MBaud IEEE1394 is used to connect them for data transmission. The other members of this group are:...
Hardware Installation 3.1.1 Unpacking Normally, the F-FEM-DAC is delivered in a cabinet with the wiring already done. Component parts must only be exchanged in the case of replacements or system extensions. Important: Please check the contents with the items as indicated under "Scope of Supply".
Hardware Installation 3.1.4 Fixing the Module at the DIN Rail Fig. 5 Fixing the Module at the DIN Rail Important: When mounting the device in a cabinet, make sure not to cover the vents to allow sufficient air to circulate. The minimum distance between cable duct and upper side or lower side of the module should not be less than 40 mm.
Hardware Installation 3.1.5 External Dimensions Fig. 6 F-FEM-DAC, external dimensions F-FEM-DAC F-FEM-DAC F-FEM-DAC F-FEM-DAC O p e r a t i n g M a n u a l...
If the power supply has been switched on and the pin assignment is correct, a figure or 2 strokes appear on the seven-segment display on the front side of the F-FEM-DAC. If this is not the case, check all steps of the installation.
This requires low grounding resistance and compliance with the high frequency rules regarding installation, wire types and contacting. The F-FEM-DAC is electrically isolated from the 24 V DC supply. All analog outputs are electrically isolated from each other and from the system.
Page 22
Grounding and Shielding Cu-band 11 x 2 Mounting panels Contact disk 6.1 Screw M6 x 25 Disk 6.4 Insert nut d9 DIN rail 35 x 7.5 Fig. 7 Mounting of ground braid at insert nut Fig. 8 Alternative mounting of ground braid at ground terminal The following materials are recommended for grounding: =EX0441= Ground braid: tin-plated Cu 10 mm...
Page 23
-AIF -AIS F-FEM-AIN IEEE1394 Power Supply F-FEM- F-FEM- F-FEM- Add-On DYNO ENGINE Load cell Fig. 9 Grounding when using standard cabling F-FEM-DAC F-FEM-DAC F-FEM-DAC F-FEM-DAC O p e r a t i n g M a n u a l...
Page 24
Grounding and Shielding TEST CELL CABINET To Host System Fiber optic Link e. g. PC or PUMA Converter F-FEM- IEEE1394 Converter 24 V Distributor Power U nit 24 V Power Supply F-FEM-AIN PE N L1 F-FEM- F-FEM- F-FEM- Add-On Legend: Shield Shield on case Sensor...
Page 25
Shield on case ENGINE Case Protective ground Device ground Ground braid Fig. 11 Grounding when using a fiber optic link and split grounds F-FEM-DAC F-FEM-DAC F-FEM-DAC F-FEM-DAC O p e r a t i n g M a n u a l...
Grounding and Shielding 3.3.2 Shielding WARNING: All analog output channels and frequency output channels must be wired using shielded cables! All shields have to be connected on both ends and all the way around. Fig. 12 D-Sub connector shielding If extension lines are used for the sensors, it is not permitted to connect the shielding with a connector pin.
To achieve the desired accuracies, each output is checked during production testing and the deviations found are stored in the EEPROM of the F-FEM-CON. The F-FEM-DAC software takes these deviations into account and corrects them (calibration). To achieve optimum accuracy, do not use the voltage output and the current output of a channel simultaneously.
Analog Outputs 4.1.3 Specifications Voltage Output Quantity Min. Typ. Max. Unit Remark + 11 Output Range Resolution 16 bit + 1.3 + 4 LSB Integral Nonlinearity + 168 + 0.5 LSB Differential Nonlinearity + 0.5 Gain Error at 25 °C Adjustment with a load of 10 GW + 20...
Page 29
Analog outputs, general Important: All specifications are for an ambient temperature between 0 and 60 °C and a supply voltage of 24 V ± 20 % unless otherwise noted. F-FEM-DAC F-FEM-DAC F-FEM-DAC F-FEM-DAC O p e r a t i n g M a n u a l...
Frequency Outputs Frequency Outputs 4.2.1 Block Diagram X15/1 Zero track X15/2 Zero track X15/3 Track A X15/4 Track A X15/5 Track B X15/6 Track B X15/7 5...24 V Single track X15/8 X15/9 Fig. 14 Circuit of F-OUT channel The pin assignment above applies to X15 and X16. The output frequency and the duty cycle can be varied over a wide range.
The desired frequency is output by halves at tracks A and B, whereby the phase shift of both tracks corresponds to the desired duty cycle (0 - 100% corresponds to 0 - 180°). Fig. 16 F-Out PWM tracks Z, A, B F-FEM-DAC F-FEM-DAC F-FEM-DAC F-FEM-DAC...
Page 32
Frequency Outputs "PWM" and "PWM inverted" interpret the duty cycle (DC) in a different way: DC = ON Time / Time Period * 100% DC inverted = OFF Time / Time Period * 100% Fig. 17 F-Out PWM block diagram h t t p : / / w w w .
Page 33
ΑΒ The WD-Live signal is output at the single channel. Fig. 18 F-Out Simulate ABZ Fig. 19 Simulate ABZ block diagram F-FEM-DAC F-FEM-DAC F-FEM-DAC F-FEM-DAC O p e r a t i n g M a n u a l...
Frequency Outputs 4.2.3 Accuracy of the Frequency Synthesis Different frequency errors occur during frequency synthesis, depending on the value (frequency or duty cycle) that is varied. These errors include: Frequency errors: caused by quartz inaccuracy and quantization (limited resolution due to limited counter width) Duty-cycle errors: caused by quantization (limited resolution due to limited counter width)
Page 35
Frequency Outputs Fig. 21 Relationship between duty cycle error and duty cycle at different frequencies Fig. 22 Relationship between frequency error and frequency F-FEM-DAC F-FEM-DAC F-FEM-DAC F-FEM-DAC O p e r a t i n g M a n u a l...
Frequency Outputs 4.2.4 Specifications Quantity Min. Max. Unit Remark Time resolution 1 LSB Frequency resolution 0.074506 1 LSB Number of teeth Z 65535 Teeth Duty Cycle DC 0.001 + 99.999 Output frequency f - 300 + 300 In Simulate ABZ mode Output frequency f - 300 + 300...
Aging and Calibration Intervals 4.4.1 General Due to the use of most up-to-date technologies, the F-FEM-DAC reaches accuracy levels which in the past were reserved to laboratory equipment. These accuracy levels can thus only be checked using laboratory equipment that has an accuracy that is at least four times higher.
No changes are made to the module. If the specified limits are exceeded, the following can be done: Have a readjustment be performed at AVL, or Remove the errors in the PUMA system with the help of a calibration table.
Pin assignment Pin assignment 4.5.1 Location of Plug Connections IEEE 1394 Fig. 23 F-FEM-DAC, front view F-FEM-DAC F-FEM-DAC F-FEM-DAC F-FEM-DAC O p e r a t i n g M a n u a l...
U1_0– U2_0– U1_1+ U2_1+ U1_1– U2_1– U1_2+ U2_2+ U1_2– U2_2– VIN_15 VIN_16 FOUT1 FOUT2 GND_15 GND_16 Case Shielding Shielding Table 8 F-FEM-DAC F-FEM-DAC F-FEM-DAC F-FEM-DAC O p e r a t i n g M a n u a l...
Pin assignment 4.5.4 Power Supply Connection: X11 Fig. 26 Power supply connection: X11 Signal Description GND 24 Ground Protective ground 24 V + power supply Case Shielding Shielding Table 9 h t t p : / / w w w . a v l . c o m...
GND_24 Case Shielding Shielding Table 10 WARNING: Only prefabricated AVL cables may be used at the connectors X24 and X25 (please refer to 4.6.3 "Add-on Cable" on page 42). F-FEM-DAC F-FEM-DAC F-FEM-DAC F-FEM-DAC O p e r a t i n g M a n u a l...
Pin assignment 4.5.6 Debug/JTAG Connection: X27 Fig. 28 Debug/JTAG connection: X27 Signal Description DGND Ground FLASH Ry/By FLASH WEn VDD out (3.3V) max. 50 mA DGND DGND WDDIS Watchdog disabled EMUn Emulation Test Machine State Test Clock TRSTn Test Reset Data in Data out Case...
TPB_NEG TPB_POS Case Shielding Shielding Table 12 WARNING: Only prefabricated AVL cables may be used at this connector. Only prefabricated cables have a screw-type locking, thus ensuring proper operation. F-FEM-DAC F-FEM-DAC F-FEM-DAC F-FEM-DAC O p e r a t i n g M a n u a l...
Lay shield under strain relief clamp of housing Fig. 30 Power feed cable Pcs. Required material AVL part number Up to 2.0 m: Shielded cable 3 x 0.75 mm² EX0398 More than 2.0 m: Shielded cable 3 x 1.5 mm² EX0557...
Fig. 31 Example of a Repeater for IEEE1394 The repeater can be ordered under the article number "TP08BB011A.01 Repeater for IEEE 1394". F-FEM-DAC F-FEM-DAC F-FEM-DAC F-FEM-DAC O p e r a t i n g M a n u a l...
Fig. 32 Example of an FOL converter for IEEE1394 F-FEM-DIO An F-FEM-DIO can be connected at X24 and X25 as extension to the F-FEM-DAC. For details, please refer to the F-FEM-DIO Operating Manual. The F-FEM-DIO can be ordered under the number GK0220.
73/23/EEC Low Voltage Directive met by complying with the following standard: EN 61010-1:2001 Safety Requirements for Electrical Equipment for Measurement, Control and Laboratory Use F-FEM-DAC F-FEM-DAC F-FEM-DAC F-FEM-DAC O p e r a t i n g M a n u a l...
Page 50
CE Compliance h t t p : / / w w w . a v l . c o m...
Page 51
Glossary Add-on A name for the F-FEM-DIO. It has no IEEE1349 network connection but must be connected to an F-FEM-DAC, F-FEM-CNT or F-FEM-CON using the add-on interface. Digitaler Analog Converter. Converts digital numbers into proportional analog quantities. Digital input Digital output EMCON Engine Monitoring and CONtrol.
Page 53
Warranty claims 16 Ambient temperature 25 Angle 32 Z Z Z Z Zero track 29 B B B B Block diagram F-FEM-DAC 11 C C C C Channel 23 Current output 25 E E E E Electromagnetic compatibility 45 I I I I...
Page 54
Index h t t p : / / w w w . a v l . c o m...
Page 56
AVL List GmbH Hans-List-Platz 1, A-8020 Graz, Austria Tel.: +43 316 787-0, Fax: +43 316 787-400 http://www.avl.com...