[NSRCA-discussion] Castle ESC question - problem solved????

Michael Cohen precisionaero at hotmail.com
Wed Apr 9 15:21:58 AKDT 2014


Airtronics SD-10.  Nothing changed but the battery and the throttle cut is once again lower than the brake engagement by A/C response.  I checked my notes on the transmitter setup and the only thing I did not write down is the % setting for brake and throttle cut.  All other items are written down.  I will see if the program is the same tomorrow.

Date: Wed, 9 Apr 2014 16:08:35 -0600
From: jgghome at comcast.net
To: nsrca-discussion at lists.nsrca.org
Subject: Re: [NSRCA-discussion] Castle ESC question - problem solved????


  
    
  
  
    Mike,

    What's the radio? Has it had a s/w update recently?

    Would recommend that your throttle cut position is at least as low
    as the lowest setting you can acheive with idle switching and the
    trim lever.  Keep in mind that doing this may require you to toggle
    throttle cut in the event of a low voltage cutoff in order to
    restore throttle authority but you will never fail to arm when you
    turn on with the throttle cut active.

    John

    On 4/9/2014 3:04 PM, Michael Cohen
      wrote:

    
    
      
      OK, the problem is solved, but not the mystery
        behind the settings change.....
        

        
        I have an idle down set that engages the brake on landing
          and a throttle cut that won't let the motor respond at all
          until it is disengaged.  These are on separate switches.  My
          normal start up sequence is plug in, listen for the proper
          Castle music, turn off the brake, disengage the throttle cut,
          spin the motor up, and take off.
        

        
        I put a normal servo on the throttle, replacing the ESC and
          tried a couple of different combinations of brake and throttle
          cut on/off.  The throttle cut position was NOT lower than the
          brake.  Also, the brake moved more when toggled between the
          two positions than I thought it would.  I did notice that with
          brake on though and throttle cut off, the trim was at the
          lowest position.
        

        
        I hooked up the ESC again an plugging in the batteries with
          the normal starting positions (brake on, throttle cut on), the
          ESC did not arm.  I turned off the throttle cut and this time
          left the brake on.  The trim went to the lowest position and
          the ESC armed.  I was able to spin th motor.  The throttle cut
          did not stop the motor if it was already spinning, although
          throttle did not respond.  With the brake switch off, the idle
          was quite high.  This was not the way things were at the end
          of the last season.  I lowered the % throw for the brake and
          throttle cut until I got the settings where I wanted them to
          be and all is back to "normal" now, including my start up
          sequence.  The mystery is, why did it change in the first
          place?
        

        
        The only difference between this season and last season was
          I replaced the airplanes battery system with a redundant one
          and replaced the NiMh battery in the TX with a LiPo.
        

        
        Thoughts?
        

        
        Regards,
        Mike C
        

          
            From: atwoodm at paragon-inc.com

            To: nsrca-discussion at lists.nsrca.org

            Date: Wed, 9 Apr 2014 15:59:01 -0400

            Subject: Re: [NSRCA-discussion] Castle ESC question.

            

            What he said :)
            

              
                
                  
                      
                        
                          Mark
                              Atwood                                    
                                                              
                          Paragon Consulting, Inc.  |  President                  
                                            
                          5885 Landerbrook Drive Suite
                              130, Cleveland Ohio, 44124                        
                          Direct: 440.229.2502 |  Fax: 440.684.3102               
                          www.paragon-inc.com                                                                            
                                                                                                                                        
                          
                                     
                            
                        
                      
                    
                
              

              
                On Apr 9, 2014, at 3:39 PM, David Harmon <k6xyz at sbcglobal.net>
                  wrote:
                
                
                  
                  
                    
                      Try moving the
                          idle trim all the way down
                       
                      
                         
                         
                        David Harmon
                        Sperry, OK
                      
                       
                      
                        
                          From:
                              nsrca-discussion-bounces at lists.nsrca.org
                              [mailto:nsrca-discussion-bounces at lists.nsrca.org]
                              On Behalf Of Michael Cohen

                              Sent: Wednesday, April 9, 2014 2:33
                              PM

                              To: NSRCA

                              Subject: [NSRCA-discussion] Castle
                              ESC question.
                        
                      
                       
                      
                        
                          I
                              brought my airplane out of its winter
                              hibernation today and simply went to test
                              the airplane with some new batteries.  I
                              have not changed any ESC or radio settings
                              since the end of the last season.  When I
                              released the throttle cut/safety switch
                              and went to spin the motor, nothing
                              happened.  
                        
                        
                           
                        
                        
                          In
                              more detail: I plugged in ESC and got the
                              normal spark.  The ESC played
                              the Castle power tune, counted 10 cells,
                              but does not play the arming tune.  Setting
                              the throttle to full (with a restrained
                              plane of course) did yield additional
                              beeps, but did not ever spin the motor.  I
                              don't see any troubleshooting on the
                              Castle website, hence the post.
                        
                        
                          
                             
                          
                          
                            If
                                I do plug the ESC into the castle link
                                controller to double check settings,
                                does the motor have to be unplugged?  I
                                have shrink wrapped the bullets for the
                                motor/ESC connection together and would
                                rather not separate them.  I will remove
                                the prop, of course.
                          
                          
                             
                          
                          
                            Regards,
                          
                          
                            Mike
                                Cohen
                          
                        
                      
                    
                  
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