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ERES104 2-channel PC/104
Syncro/Resolver interface

           

User's Manual

Real Time Devices Finland Oy

Manual for 1.2 Hardware Revision 

   

  

Real Time Devices Finland Oy
Lepolantie 14
FIN-00660 Helsinki,  Finland
Tel: (+358) 9 346 4538
Fax: (+358) 9 346 4539 
Email: [email protected]
URL: www.rtdfinland.fi

                                                                                                                       

ERES104  Ver 1.2                                                           (c) RTD Finland Oy 2000-2001

Содержание ERES104

Страница 1: ...l Real Time Devices Finland Oy Manual for 1 2 Hardware Revision Real Time Devices Finland Oy Lepolantie 14 FIN 00660 Helsinki Finland Tel 358 9 346 4538 Fax 358 9 346 4539 Email sales rtdfinland fi UR...

Страница 2: ...from improper use of this manual or from the related software RTD Finland Oy reserves the right to change the contents of this manual as well as the features and specifications of this product at any...

Страница 3: ...annel 2 11 CH1_cfg CH2_cfg Sensor type setup Direct resolver CHAPTER 2 BOARD INSTALLATION Board installation Synchro Resolver connector BIT led Power connector CHAPTER 3 HARDWARE DESCRIPTION Resolver...

Страница 4: ...List of Illustrations Page To be completed later ERES104 Ver 1 2 c RTD Finland Oy 2000 2001...

Страница 5: ...INTRODUCTION Page 1 ERES104 Ver 1 2 c RTD Finland Oy 2000 2001...

Страница 6: ...esistor capacitor pair for each channel not factory set Special design procedures have been followed to ensure error free stable operation even up to 16 bit resolution Both input channels have indepen...

Страница 7: ...stomer service department at 358 9 346 4538 Scope of this manual This manual expects the user to be familiar with syncros and resolvers The theory and operation or these sensors is not within the scop...

Страница 8: ...he ERES104 board has jumper settings to configure the operation of the board Special care must be taken to make correct connections since high voltage input signals may be used Page 4 ERES104 Ver 1 2...

Страница 9: ...fer to the following jumper specific information on usage of these jumpers Jumper name Function Setting BASE Base address 300h IRQ1 Channel 1 IRQ 10 IRQ2 Channel 2 IRQ 11 SENSOR1 Sensor selection Dire...

Страница 10: ...is setting to another using the options illustrated in Table 1 2 The table shows the switch settings and their corresponding values in hexadecimal values Make sure you verify the correct location of t...

Страница 11: ...interrupt header is illustrated below in figure 1 3 Fig 1 3 Host interrupts set to factory defaults SENSOR1 2 Sensor type selection jumpers Factory settings straight resolver The sensor configuration...

Страница 12: ...CHAPTER 2 BOARD INSTALLATION The ERES104 Syncro Resolver interface board is very easy to connect to your industrial distributed control system Direct interface to PC 104 systems is easily achieved Th...

Страница 13: ...lt in unpredictable board operation and erratic response General installation guidelines 1 Turn OFF the power to your computer 2 Touch the grounded metal housing of your computer to discharge any anti...

Страница 14: ...7 S1_2 S1_DR2 28 S3_2 S3_DR2 29 CH2_AGND 30 S4_DR2 31 S2_DR2 32 S2_2 33 GND 34 GND Table 2 1 Sensor interface connector J10 pinout S1 Channel 1 or differential resolver S1 channel 1 Differential resol...

Страница 15: ...by the ERES104 board Note 2 12V and 12V are connected to the PC 104 bus These power inputs are only used if the excitation source is powered from the power connector In this case the solder blobs on t...

Страница 16: ...excitation oscillator BELOW ARE LISTED THE EXTERNAL COMPONENT VALUES OF THE RDC 19220 RESOLVER TO DIGITAL CONVERTER FOR MORE INFORMATION ON SELECTING THESE COMPONENTS PLEASE REFER TO THE APPLICATION...

Страница 17: ...16 bit resolution The following passage will illustrate these connections Connecting Resolvers to ERES104 The figure 3 1a illustrates a generic resolver connection scheme to the converter Figure 3 1b...

Страница 18: ...2 10mV pp The signal is identical to that of a resolver From the point of view of the RD converter the Inductosyn signal must be preamplified to the level of 2V rms that is required by the chips This...

Страница 19: ...precondition the voltage range of the sensors to a suitable level of 2V Fig 3 2a Generic Syncro connection to a Resolver to Digital converter Fig 3 2b Syncro connection to a ERES104 S1 is in pin 19 S3...

Страница 20: ...s a generic 2 wire LVDT connection to a converter The prescision amplifier circuitry presented above is external to the ERES104 Such LVDT preamplifier modules are availalable from RTD as standard prod...

Страница 21: ...ork together with the internal Opamps These resistor networks are available for the two standard voltage levels 11 8V and 90V syncros The resistor network value ratios are pre trimmed to produce the 2...

Страница 22: ...wer PC 104 supply is the EPWR104 or HPWR104 giving output 500mA of 12V There are two output buffer amplifiers in parallel One for Sensor 1 and the other for Sensor 2 The reference frequency ssource is...

Страница 23: ...board are locations for an additional resistor capacitor for phase correction for each channel The components for channel 1 are labelled R8 R7 for channel 2 R9 R10 The factory default setting is R8 an...

Страница 24: ...ibe how to program the ERES104 host interface from both directions as well as explain how the onboard Resolver to Digital converters and the programmable sine wave oscillators are programmed from the...

Страница 25: ...gle data can then be read D0 1 conversion being updated continuously D1 0 freeze counter to latch for reading BASE 2 INHIBIT CHANNEL 2 1 AFTER RESET The RD converter 2 Inhibit signal is controlled by...

Страница 26: ...r BASE 8 RD_RESOLUTION 00h AFTER RESET This register controls the resolution bits of the RD converters for channels 1 and 2 The truth table for the resolution is as described below B A Resolution 0 0...

Страница 27: ...0 and 1 Please refer to the example programs on how to do this BASE C ENABLE CHANNEL 1 BASE E ENABLE CHANNEL 2 Reading from this address will output the RD converter data to the host Note that the ER...

Страница 28: ...ensor outputs Note that the power amplifier is AC coupled Changing the frequency will also affect the amplitude of the excitation gain 4 The reference feedback is by factory default set to a voltage d...

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