Hot Motor on my Cinestar 6 question

Discussion in 'Cinestar 6' started by Gary Baum, Sep 13, 2013.

  1. Gary Baum

    Gary Baum New Member

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    These are the flight logs from my Cinestar 6 flying a Rebel T3i with a Canon EF 8-15mm f/4L Fisheye lens and I am a bit alarmed at the motor 4 temperatures. These flights took place at an ambient temperature of perhaps 75 degrees F and the flight on 9/05 took place at 9AM in cool morning and it seems to have produced the high temperature for motor 4 of 104C.

    These temperatures seem excessive, is this something I should worry about? My camera set up weighs about 42 ounces have I exceeded the weight capacity of my Cinestar6 ?

    Any suggestions or recomendations would be appreciated

    Thanks :)
    Gary

    MK Version: FC HW:2.2 SW:0.90j + NC HW:2.0 SW:0.30h

    Flight date: 9/5/2013 9:37:19 AM
    Flight time: 9:37:19 AM - 9:39:05 AM (106 secs, 00:01:46)
    Batt. time : 177 secs, 00:02:57

    Start Lat./Lon. : 34.0477057 / -118.5347643
    Elevation(GPS) : 0 0.39 2.31 m (min/avg/max)
    Altitude(Barom.): -0.65 1.67 3.2 m
    Vertical speed : -1.6 -0.16 0.87 m/s
    Max speed : 3.5 km/h
    Max target dist.: 4.9 m
    Max distance/LOS: 3.9 m / 4.9 m

    Sats : 9 9 11

    Voltage : min. 13.8, max. 15 V
    Current : 0.5 53 72.9 A
    Wattage : 7 774 1049.76 W
    Capacity: 2168 mAh

    Motor1: 0.0 6.4 8.9 A Temp: 41 61 69 °C
    Motor2: 0.3 10.9 14.1 A Temp: 44 70 81 °C
    Motor3: 0.0 5.1 6.7 A Temp: 40 62 72 °C
    Motor4: 0.0 11.4 13.8 A Temp: 46 84 103 °C
    Motor5: 0.0 5.5 6.7 A Temp: 41 60 72 °C
    Motor6: 4.5 11.7 14.9 A Temp: 44 79 95 °C

    Magnet Field: 81 84 91 % (ok)
    Magnet Inclination: 61 62 66 deg

    Errors / warnings:
    FC-Flag "LowBat" (5) occured 3 times!



    MK Version: FC HW:2.2 SW:0.90j + NC HW:2.0 SW:0.30h

    Flight date: 9/6/2013 6:11:45 PM
    Flight time: 6:11:45 PM - 6:14:37 PM (172 secs, 00:02:52)
    Batt. time : 173 secs, 00:02:53

    Start Lat./Lon. : 34.0400991 / -118.5361075
    Elevation(GPS) : 0 23.64 49.771 m (min/avg/max)
    Altitude(Barom.): -0.55 28.33 57.2 m
    Vertical speed : -5.75 0.08 4.48 m/s
    Max speed : 13.8 km/h
    Max target dist.: 20.8 m
    Max distance/LOS: 22.3 m / 60.9 m

    Sats : 12 11 12

    Voltage : min. 14.3, max. 16 V
    Current : 0.5 55 91.1 A
    Wattage : 8 852 1366.5 W
    Capacity: 2722 mAh

    Motor1: 0.0 3.6 6.2 A Temp: 30 42 46 °C
    Motor2: 0.0 12.8 22.5 A Temp: 30 64 73 °C
    Motor3: 1.6 2.9 4.5 A Temp: 29 43 50 °C
    Motor4: 12.5 16.1 19.3 A Temp: 35 85 103 °C
    Motor5: 2.3 4.5 11.1 A Temp: 31 50 60 °C
    Motor6: 12.5 15.6 24.8 A Temp: 38 77 87 °C

    Magnet Field: 89 90 94 % (ok)
    Magnet Inclination: 53 55 59 deg

    Errors / warnings:
    Error "BL Limitation" (24) occured 9 times!



    MK Version: FC HW:2.2 SW:0.90j + NC HW:2.0 SW:0.30h

    Flight date: 9/7/2013 5:45:10 PM
    Flight time: 5:45:10 PM - 5:49:27 PM (257 secs, 00:04:17)
    Batt. time : 259 secs, 00:04:19

    Start Lat./Lon. : 34.0453017 / -118.5319549
    Elevation(GPS) : 0 94.67 153.196 m (min/avg/max)
    Altitude(Barom.): -0.15 101.48 164.3 m
    Vertical speed : -7.9 -0.04 7.82 m/s
    Max speed : 14 km/h
    Max target dist.: 5.9 m
    Max distance/LOS: 30.9 m / 166.4 m

    Sats : 7 11 12

    Voltage : min. 14.3, max. 15.9 V
    Current : 0.5 55 113.3 A
    Wattage : 8 839 1631.52 W
    Capacity: 4010 mAh

    Motor1: 1.0 6.8 13.9 A Temp: 23 50 63 °C
    Motor2: 0.4 10.9 24.3 A Temp: 22 60 76 °C
    Motor3: 0.3 5.5 11.6 A Temp: 21 48 58 °C
    Motor4: 0.3 12.2 24.8 A Temp: 24 75 97 °C
    Motor5: 0.0 6.6 12.6 A Temp: 23 54 68 °C
    Motor6: 8.7 12.7 23.3 A Temp: 28 67 83 °C

    Magnet Field: 83 92 100 % (ok)
    Magnet Inclination: 53 56 63 deg

    Errors / warnings:
    FC-Flag "LowBat" (5) occured 1 times!


    MK Version: FC HW:2.2 SW:0.90j + NC HW:2.0 SW:0.30h

    Flight date: 9/7/2013 5:56:11 PM
    Flight time: 5:56:11 PM - 5:59:17 PM (186 secs, 00:03:06)
    Batt. time : 189 secs, 00:03:09

    Start Lat./Lon. : 34.0453192 / -118.5320285
    Elevation(GPS) : 0 99.78 134.763 m (min/avg/max)
    Altitude(Barom.): 0.1 104.41 140.8 m
    Vertical speed : -6.9 -0.01 7.38 m/s
    Max speed : 12.4 km/h
    Max target dist.: 10.7 m
    Max distance/LOS: 40.9 m / 145.5 m

    Sats : 8 10 12

    Voltage : min. 14.5, max. 16.4 V
    Current : 0.5 55 106.5 A
    Wattage : 8 851 1586.85 W
    Capacity: 2905 mAh

    Motor1: 2.6 6.7 14.0 A Temp: 25 45 54 °C
    Motor2: 5.5 10.2 18.0 A Temp: 23 51 68 °C
    Motor3: 1.3 5.6 11.6 A Temp: 23 43 57 °C
    Motor4: 0.0 11.8 23.1 A Temp: 22 64 83 °C
    Motor5: 0.1 7.1 12.3 A Temp: 21 51 67 °C
    Motor6: 0.8 13.0 25.4 A Temp: 24 62 73 °C

    Magnet Field: 87 92 97 % (ok)
    Magnet Inclination: 53 57 65 deg

    Errors / warnings:
    FC-Flag "LowBat" (5) occured 2 times!
     
  2. Brad Meier

    Brad Meier Active Member
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    Andy seems to be the resident log examiner but my suggestion would be to swap boom 2 and 4 and try again. If the high temps stay with the motor, it could be a motor issue. If they stay with the esc, well.. ya know. Thats my quick and dirty diagnostic.
     
  3. Gary Baum

    Gary Baum New Member

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    Thanks for your reply...

    Yes it's all Andy's fault since I have watched all of his darn DVDs it has made me aware of this problem. ;)

    And I was so happy ignorantly flying around completely oblivious to all of this ....TMI :eek:
     
    Casey Van Nyhuis likes this.
  4. Gary Haynes

    Gary Haynes Administrator
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    Gary do you have wireless Xbee. If so you can also check the balance in MKTool while the ship is in the air just to make sure everything is in balance. Very well may just be a bad BL Temp Sensor on that BL board since your current pull is pretty close to the other odd numbered motors.
     
  5. Andy Johnson-Laird

    Andy Johnson-Laird Administrator
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    Just ignore what I said on the DVDs, Gary, then you will be happy again. :)

    The odd numbered motors seem to be running cooler than the even numbered motors. Check that all of the motors are truly vertical (sight along the side of the motor bell and move your head sideways to line up the edge of the bell with a battery [EDIT] support plate plate support post). There is a chance that one or more of the motors' thrust axis is not vertical and that's inducing a yawing motion. The Flight Controller is compensating for it by making the even numbered motors work a little harder.

    Hope that helps.
    Andy.
     
  6. Gary McCready

    Gary McCready Active Member

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    I had a recent problem with odd arms being hotter than even ESCs. It turned out one motor was tilted slightly. I think the armed turned a bit while I was carrying the CS6. I agree with Andy, check your motor alignment. Mine didn't "look" different.
     

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