#####   
 ##  ##  
 ##  ##  
 #####   
 ##      
 ##      

   _____ 
  / ____|
 | |  __ 
 | | |_ |
 | |__| |
  \_____|
         
         

   ####  
  ## #   
  ##     
 #####   
  ##     
  ##     
 ####    
         

     _    
    / \   
   / _ \  
  / ___ \ 
 /_/   \_\
          

         
 ##      
 ##      
 ## ##   
 ####    
 ## ##   
 ##  ##  
         

IMPORTANT: enter the case-INsensitive alphabetic (no numbers) code AND WRITE SOME SHORT summary of changes (below) if you are saving changes. (not required for previewing changes). Wiki-spamming is not tolerated, will be removed, so it does NOT even show up in history. Spammers go away now.


Visit Preferences to set your user name
Summary of change:
== Procedure to calibrate or recalibrate your WBO2 controller built-in to VEMS V3 == These are included during v3 assembly. It can be useful for debugging if something is wrong. Check WBO2 + supply and other wiring (the most common mistakes). '''wbo2_pump_pw_zero''' and '''wbo2_nernst_dc_target''' board calibration values are the results from these adjustments Note: the following '''information is required for any WBO2 related question''': wbo2 values (pump zero dutycycle, nernst dc target), controller serialnumber (preferrably also orderid), sensor resistance (Ohm measured between pin2 and pin6), acquired wbo2 calibration value. * Connect '''pump(-)''' and '''nernst''' with 100 Ohm * connect '''nernst''' and '''pump(+)''' with 100Ohm too. * Connect a LED's cathode to Heater(-). ** Anode with series 500 Ohm to 12V http://www.vems.hu/files/widebando2/wbo2controller_test.png '''Verify Pump-''' *First Measure the voltage between the GND and Pump(-). It should be appr +4V (3.85 - 4.15V) '''Measure Pump+ and Adjust Pump-pw-zero ''' * Measure the voltage between '''pump(-)''' and '''pump(+)''' ** DVM's COM (black) = Pump(-) ** it should between -4mv and +4mV, when wbo2 is off. If the voltage not in the specified range, adjust pump_pw_zero variable '''Verify Heater''' * turn on the wbo2 (mde02 in the terminal, or WBO2 calibration wizard in VemsTune) ** The LED should start lighting. '''Nernst-DC target''' * Connect DVM's (+) to '''nernst''' ** note: DVM reference (-) is still on pump(-) ** after a while, the voltage should rise to +450mV. Adjust wbo2_nernst_dc_target variable to get close. ** optional step: Switch to the display's 7th page (Terminal: mlp07). Check Ri(Top left corner), it should between 90 and E0. '''Quick Reference''' ||DVM -||DVM +||Expected Val.||Var to Change||Notes|| ||GND||pump-||+4V (3.85-4.15V)|| ||Just verify|| ||pump-||pump+||-4mV to +4mV||pump_pw_zero||WBO2 off|| ||pump-||nernst||+450mV||wbo2_nernst_dc_target||WBO2 on|| * WBO2 Basic calibration settings in Vemstune Basic settings -> ECU calibrations
Optional: Add document to category:
Wiki formatting: * is Bullet list ** Bullet list subentry ... '''Bold''', ---- is horizontal ruler, <code> preformatted text... </code> See wiki editing HELP for tables and other formatting tips and tricks.